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Rewriting the radio in TypeScript (#2000)

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* Refactoring radio into the ts

* Moving the rest of the radio functionality to the TypeScript

* Removing sim implementation of old radio cpp

* Adding test script

* Removing handler key

* Rename internal functions

* PR feedback

* Refactoring to use event bus
This commit is contained in:
Richard Knoll 2019-04-12 13:10:47 -07:00 committed by GitHub
parent 19641abe92
commit 61aae94d8b
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8 changed files with 926 additions and 812 deletions
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38
libs/radio/_locales/radio-jsdoc-strings.json
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@ -1,39 +1,41 @@
{
"radio": "Communicate data using radio packets",
"radio.Packet.receivedBuffer": "The buffer payload if a buffer was sent in this packet\nor the empty buffer",
"radio.Packet.receivedNumber": "The number payload if a number was sent in this packet (via ``sendNumber()`` or ``sendValue()``)\nor 0 if this packet did not contain a number.",
"radio.Packet.receivedString": "The string payload if a string was sent in this packet (via ``sendString()`` or ``sendValue()``)\nor the empty string if this packet did not contain a string.",
"radio.Packet.receivedBuffer": "The buffer payload if a buffer was sent in this packet\r\nor the empty buffer",
"radio.Packet.receivedNumber": "The number payload if a number was sent in this packet (via ``sendNumber()`` or ``sendValue()``)\r\nor 0 if this packet did not contain a number.",
"radio.Packet.receivedString": "The string payload if a string was sent in this packet (via ``sendString()`` or ``sendValue()``)\r\nor the empty string if this packet did not contain a string.",
"radio.Packet.serial": "The serial number of the sender of the packet or 0 if the sender did not sent their serial number.",
"radio.Packet.signal": "The received signal strength indicator (RSSI) of the packet.",
"radio.Packet.time": "The system time of the sender of the packet at the time the packet was sent.",
"radio._packetProperty": "Gets a packet property.",
"radio._packetProperty|param|type": "the packet property type, eg: PacketProperty.time",
"radio.onDataPacketReceived": "Registers code to run when the radio receives a packet. Also takes the\nreceived packet from the radio queue.",
"radio.onDataPacketReceived": "Deprecated. Use onDataReceived() instead\r\nRegisters code to run when the radio receives a packet. Also takes the\r\nreceived packet from the radio queue.",
"radio.onDataReceived": "Registers code to run when a packet is received over radio.",
"radio.onReceivedBuffer": "Registers code to run when the radio receives a buffer.",
"radio.onReceivedBufferDeprecated": "Registers code to run when the radio receives a buffer. Deprecated, use\nonReceivedBuffer instead.",
"radio.onReceivedBufferDeprecated": "Registers code to run when the radio receives a buffer. Deprecated, use\r\nonReceivedBuffer instead.",
"radio.onReceivedNumber": "Registers code to run when the radio receives a number.",
"radio.onReceivedNumberDeprecated": "Registers code to run when the radio receives a number. Deprecated, use\nonReceivedNumber instead.",
"radio.onReceivedNumberDeprecated": "Registers code to run when the radio receives a number. Deprecated, use\r\nonReceivedNumber instead.",
"radio.onReceivedString": "Registers code to run when the radio receives a string.",
"radio.onReceivedStringDeprecated": "Registers code to run when the radio receives a string. Deprecated, use\nonReceivedString instead.",
"radio.onReceivedStringDeprecated": "Registers code to run when the radio receives a string. Deprecated, use\r\nonReceivedString instead.",
"radio.onReceivedValue": "Registers code to run when the radio receives a key value pair.",
"radio.onReceivedValueDeprecated": "Registers code to run when the radio receives a key value pair. Deprecated, use\nonReceivedValue instead.",
"radio.onReceivedValueDeprecated": "Registers code to run when the radio receives a key value pair. Deprecated, use\r\nonReceivedValue instead.",
"radio.raiseEvent": "Sends an event over radio to neigboring devices",
"radio.receiveNumber": "Reads the next packet from the radio queue and returns the packet's number\npayload or 0 if the packet did not contain a number.",
"radio.receiveString": "Reads the next packet from the radio queue and returns the packet's string\npayload or the empty string if the packet did not contain a string.",
"radio.receivedBuffer": "Returns the buffer payload from the last packet taken from the radio queue\n(via ``receiveNumber``, ``receiveString``, etc) or the empty string if that\npacket did not contain a string.",
"radio.receivedNumber": "Returns the number payload from the last packet taken from the radio queue\n(via ``receiveNumber``, ``receiveString``, etc) or 0 if that packet did not\ncontain a number.",
"radio.readRawPacket": "Takes the next packet from the radio queue and returns its contents in a Buffer",
"radio.receiveNumber": "Reads the next packet from the radio queue and returns the packet's number\r\npayload or 0 if the packet did not contain a number.",
"radio.receiveString": "Reads the next packet from the radio queue and returns the packet's string\r\npayload or the empty string if the packet did not contain a string.",
"radio.receivedBuffer": "Returns the buffer payload from the last packet taken from the radio queue\r\n(via ``receiveNumber``, ``receiveString``, etc) or the empty string if that\r\npacket did not contain a string.",
"radio.receivedNumber": "Returns the number payload from the last packet taken from the radio queue\r\n(via ``receiveNumber``, ``receiveString``, etc) or 0 if that packet did not\r\ncontain a number.",
"radio.receivedPacket": "Returns properties of the last radio packet received.",
"radio.receivedPacket|param|type": "the type of property to retrieve from the last packet",
"radio.receivedSerial": "Returns the serial number of the sender micro:bit from the last packet taken\nfrom the radio queue (via ``receiveNumber``, ``receiveString``, etc) or 0 if\nthat packet did not send a serial number.",
"radio.receivedSerial": "Returns the serial number of the sender micro:bit from the last packet taken\r\nfrom the radio queue (via ``receiveNumber``, ``receiveString``, etc) or 0 if\r\nthat packet did not send a serial number.",
"radio.receivedSignalStrength": "Gets the received signal strength indicator (RSSI) from the last packet taken\nfrom the radio queue (via ``receiveNumber``, ``receiveString``, etc). Not supported in simulator.\nnamespace=radio",
"radio.receivedString": "Returns the string payload from the last packet taken from the radio queue\n(via ``receiveNumber``, ``receiveString``, etc) or the empty string if that\npacket did not contain a string.",
"radio.receivedTime": "Returns the system time of the sender micro:bit at the moment when it sent the\nlast packet taken from the radio queue (via ``receiveNumber``,\n``receiveString``, etc).",
"radio.receivedString": "Returns the string payload from the last packet taken from the radio queue\r\n(via ``receiveNumber``, ``receiveString``, etc) or the empty string if that\r\npacket did not contain a string.",
"radio.receivedTime": "Returns the system time of the sender micro:bit at the moment when it sent the\r\nlast packet taken from the radio queue (via ``receiveNumber``,\r\n``receiveString``, etc).",
"radio.sendBuffer": "Broadcasts a buffer (up to 19 bytes long) along with the device serial number\nand running time to any connected micro:bit in the group.",
"radio.sendNumber": "Broadcasts a number over radio to any connected micro:bit in the group.",
"radio.sendRawPacket": "Sends a raw packet through the radio",
"radio.sendString": "Broadcasts a string along with the device serial number\nand running time to any connected micro:bit in the group.",
"radio.sendValue": "Broadcasts a name / value pair along with the device serial number\nand running time to any connected micro:bit in the group.",
"radio.sendValue|param|name": "the field name (max 12 characters), eg: \"name\"",
"radio.sendValue": "Broadcasts a name / value pair along with the device serial number\nand running time to any connected micro:bit in the group. The name can\ninclude no more than 8 characters.",
"radio.sendValue|param|name": "the field name (max 8 characters), eg: \"name\"",
"radio.sendValue|param|value": "the numeric value",
"radio.setGroup": "Sets the group id for radio communications. A micro:bit can only listen to one group ID at any time.",
"radio.setGroup|param|id": "the group id between ``0`` and ``255``, eg: 1",
@ -42,5 +44,5 @@
"radio.setTransmitSerialNumber": "Set the radio to transmit the serial number in each message.",
"radio.setTransmitSerialNumber|param|transmit": "value indicating if the serial number is transmitted, eg: true",
"radio.writeReceivedPacketToSerial": "Writes the last received packet to serial as JSON. This should be called\nwithin an ``onDataPacketReceived`` callback.",
"radio.writeValueToSerial": "Reads the next packet from the radio queue and and writes it to serial\nas JSON."
"radio.writeValueToSerial": "Reads the next packet from the radio queue and and writes it to serial\r\nas JSON."
}

188
libs/radio/deprecated.ts Normal file
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@ -0,0 +1,188 @@
namespace radio {
export class Packet {
/**
* The number payload if a number was sent in this packet (via ``sendNumber()`` or ``sendValue()``)
* or 0 if this packet did not contain a number.
*/
public receivedNumber: number;
/**
* The string payload if a string was sent in this packet (via ``sendString()`` or ``sendValue()``)
* or the empty string if this packet did not contain a string.
*/
public receivedString: string;
/**
* The buffer payload if a buffer was sent in this packet
* or the empty buffer
*/
public receivedBuffer: Buffer;
/**
* The system time of the sender of the packet at the time the packet was sent.
*/
public time: number;
/**
* The serial number of the sender of the packet or 0 if the sender did not sent their serial number.
*/
public serial: number;
/**
* The received signal strength indicator (RSSI) of the packet.
*/
public signal: number;
}
/**
* Deprecated. Use onDataReceived() instead
* Registers code to run when the radio receives a packet. Also takes the
* received packet from the radio queue.
*/
//% help=radio/on-data-packet-received blockHandlerKey="radioreceived" deprecated=true
//% mutate=objectdestructuring
//% mutateText=Packet
//% mutateDefaults="receivedNumber;receivedString:name,receivedNumber:value;receivedString"
//% blockId=radio_on_packet block="on radio received" blockGap=8
export function onDataPacketReceived(cb: (packet: Packet) => void) {
onDataReceived(() => {
receiveNumber();
const packet = new Packet();
packet.receivedNumber = receivedNumber();
packet.time = receivedTime();
packet.serial = receivedSerial();
packet.receivedString = receivedString();
packet.receivedBuffer = receivedBuffer();
packet.signal = receivedSignalStrength();
cb(packet)
});
}
/**
* Registers code to run when the radio receives a number. Deprecated, use
* onReceivedNumber instead.
*/
//% help=radio/on-received-number blockHandlerKey="radioreceived"
//% blockId=radio_on_number block="on radio received" blockGap=16
//% useLoc="radio.onDataPacketReceived" deprecated=1
export function onReceivedNumberDeprecated(cb: (receivedNumber: number) => void) {
onReceivedNumber(cb);
}
/**
* Registers code to run when the radio receives a key value pair. Deprecated, use
* onReceivedValue instead.
*/
//% help=radio/on-received-value blockHandlerKey="radioreceived"
//% blockId=radio_on_value block="on radio received" blockGap=16
//% useLoc="radio.onDataPacketReceived" deprecated=1
export function onReceivedValueDeprecated(cb: (name: string, value: number) => void) {
onReceivedValue(cb);
}
/**
* Registers code to run when the radio receives a string. Deprecated, use
* onReceivedString instead.
*/
//% help=radio/on-received-string blockHandlerKey="radioreceived"
//% blockId=radio_on_string block="on radio received" blockGap=16
//% useLoc="radio.onDataPacketReceived" deprecated=1
export function onReceivedStringDeprecated(cb: (receivedString: string) => void) {
onReceivedString(cb);
}
/**
* Registers code to run when the radio receives a buffer. Deprecated, use
* onReceivedBuffer instead.
*/
//% help=radio/on-received-buffer blockHandlerKey="radioreceived" blockHidden=1
//% blockId=radio_on_buffer block="on radio received" blockGap=16
//% useLoc="radio.onDataPacketReceived" deprecated=1
export function onReceivedBufferDeprecated(cb: (receivedBuffer: Buffer) => void) {
onReceivedBuffer(cb);
}
/**
* Reads the next packet from the radio queue and and writes it to serial
* as JSON.
*/
//% help=radio/write-value-to-serial
//% weight=3
//% blockId=radio_write_value_serial block="radio write value to serial"
//% deprecated=true
export function writeValueToSerial() {
const p = RadioPacket.getPacket(radio.readRawPacket());
writeToSerial(p);
}
/**
* Returns the number payload from the last packet taken from the radio queue
* (via ``receiveNumber``, ``receiveString``, etc) or 0 if that packet did not
* contain a number.
*/
//% help=radio/received-number deprecated=1
export function receivedNumber(): number {
return (lastPacket ? lastPacket.numberPayload : 0) || 0;
}
/**
* Returns the serial number of the sender micro:bit from the last packet taken
* from the radio queue (via ``receiveNumber``, ``receiveString``, etc) or 0 if
* that packet did not send a serial number.
*/
//% help=radio/received-serial deprecated=1
export function receivedSerial(): number {
return lastPacket ? lastPacket.serial : 0;
}
/**
* Returns the string payload from the last packet taken from the radio queue
* (via ``receiveNumber``, ``receiveString``, etc) or the empty string if that
* packet did not contain a string.
*/
//% help=radio/received-string deprecated=1
export function receivedString(): string {
return (lastPacket ? lastPacket.stringPayload : "") || "";
}
/**
* Returns the buffer payload from the last packet taken from the radio queue
* (via ``receiveNumber``, ``receiveString``, etc) or the empty string if that
* packet did not contain a string.
*/
//% help=radio/received-buffer deprecated=1
export function receivedBuffer(): Buffer {
return (lastPacket ? lastPacket.bufferPayload : null) || control.createBuffer(0);
}
/**
* Returns the system time of the sender micro:bit at the moment when it sent the
* last packet taken from the radio queue (via ``receiveNumber``,
* ``receiveString``, etc).
*/
//% help=radio/received-time deprecated=1
export function receivedTime(): number {
return lastPacket ? lastPacket.time : 0;
}
/**
* Reads the next packet from the radio queue and returns the packet's number
* payload or 0 if the packet did not contain a number.
*/
//% help=radio/receive-number
//% weight=46
//% blockId=radio_datagram_receive block="radio receive number" blockGap=8
//% deprecated=true
export function receiveNumber(): number {
lastPacket = RadioPacket.getPacket(readRawPacket());
return receivedNumber();
}
/**
* Reads the next packet from the radio queue and returns the packet's string
* payload or the empty string if the packet did not contain a string.
*/
//% blockId=radio_datagram_receive_string block="radio receive string" blockGap=8
//% weight=44
//% help=radio/receive-string
//% deprecated=true
export function receiveString(): string {
lastPacket = RadioPacket.getPacket(readRawPacket());
return receivedString();
}
}

3
libs/radio/pxt.json
View File

@ -6,7 +6,8 @@
"shims.d.ts",
"enums.d.ts",
"radio.cpp",
"radio.ts"
"radio.ts",
"deprecated.ts"
],
"icon": "./static/packages/radio/icon.png",
"public": true,

434
libs/radio/radio.cpp
View File

@ -2,58 +2,12 @@
using namespace pxt;
#define MAX_FIELD_NAME_LENGTH 12
#define MAX_FIELD_DOUBLE_NAME_LENGTH 8
#define MAX_PAYLOAD_LENGTH 20
#define PACKET_PREFIX_LENGTH 9
#define VALUE_PACKET_NAME_LEN_OFFSET 13
#define DOUBLE_VALUE_PACKET_NAME_LEN_OFFSET 17
// Packet Spec:
// | 0 | 1 ... 4 | 5 ... 8 | 9 ... 28
// ----------------------------------------------------------------
// | packet type | system time | serial number | payload
//
// Serial number defaults to 0 unless enabled by user
// payload: number (9 ... 12)
#define PACKET_TYPE_NUMBER 0
// payload: number (9 ... 12), name length (13), name (14 ... 26)
#define PACKET_TYPE_VALUE 1
// payload: string length (9), string (10 ... 28)
#define PACKET_TYPE_STRING 2
// payload: buffer length (9), buffer (10 ... 28)
#define PACKET_TYPE_BUFFER 3
// payload: number (9 ... 16)
#define PACKET_TYPE_DOUBLE 4
// payload: number (9 ... 16), name length (17), name (18 ... 26)
#define PACKET_TYPE_DOUBLE_VALUE 5
//% color=#E3008C weight=96 icon="\uf012"
namespace radio {
// -------------------------------------------------------------------------
// Radio
// -------------------------------------------------------------------------
bool radioEnabled = false;
bool transmitSerialNumber = false;
PacketBuffer packet;
uint8_t type;
uint32_t time;
uint32_t serial;
int ivalue;
double dvalue;
String msg; // may be NULL before first packet
Buffer bufMsg; // may be NULL before first packet
int radioEnable() {
int r = uBit.radio.enable();
if (r != MICROBIT_OK) {
@ -81,303 +35,23 @@ namespace radio {
uBit.radio.event.eventReceived(MicroBitEvent(src, value, CREATE_ONLY));
}
void setPacketPrefix(uint8_t* buf, int type) {
// prefix: type (0), time (1..4), serial (5..8)
uint32_t t = system_timer_current_time();
uint32_t sn = transmitSerialNumber ? microbit_serial_number() : 0;
buf[0] = (uint8_t) type;
memcpy(buf + 1, &t, 4);
memcpy(buf + 5, &sn, 4);
}
uint8_t copyStringValue(uint8_t* buf, String data, uint8_t maxLength) {
uint8_t len = min_(maxLength, data->getUTF8Size());
// One byte for length of the string
buf[0] = len;
if (len > 0) {
memcpy(buf + 1, data->getUTF8Data(), len);
}
return len + 1;
}
String getStringValue(uint8_t* buf, uint8_t maxLength) {
// First byte is the string length
uint8_t len = min_(maxLength, buf[0]);
return mkString((char*)buf + 1, len);
}
uint8_t copyBufferValue(uint8_t* buf, Buffer data, uint8_t maxLength) {
uint8_t len = min_(maxLength, data->length);
// One byte for length of the buffer
buf[0] = len;
if (len > 0) {
memcpy(buf + 1, data->data, len);
}
return len + 1;
}
Buffer getBufferValue(uint8_t* buf, uint8_t maxLength) {
// First byte is the buffer length
uint8_t len = min_(maxLength, buf[0]);
// skip first byte
return mkBuffer(buf + 1, len);
}
void writePacketAsJSON(uint8_t tp, int iv, double dv, int s, int t, String m, Buffer b) {
// Convert the packet to JSON and send over serial
uBit.serial.send("{");
uBit.serial.send("\"t\":");
uBit.serial.send(t);
uBit.serial.send(",\"s\":");
uBit.serial.send(s);
if ((tp == PACKET_TYPE_STRING || tp == PACKET_TYPE_VALUE) && NULL != m) {
uBit.serial.send(",\"n\":\"");
uBit.serial.send((uint8_t*)m->getUTF8Data(), m->getUTF8Size());
uBit.serial.send("\"");
}
if (tp == PACKET_TYPE_BUFFER && NULL != b) {
uBit.serial.send(",\"b\":\"");
// TODO: proper base64 encoding
uBit.serial.send(b->data, b->length);
uBit.serial.send("\"");
}
if (tp == PACKET_TYPE_NUMBER || tp == PACKET_TYPE_VALUE) {
uBit.serial.send(",\"v\":");
uBit.serial.send(iv);
} else if (tp == PACKET_TYPE_DOUBLE || tp == PACKET_TYPE_DOUBLE_VALUE) {
uBit.serial.send(",\"v\":");
TNumber td = fromDouble(dv);
String sd = numops::toString(td);
uBit.serial.send((uint8_t*)sd->getUTF8Data(), sd->getUTF8Size());
decrRC(sd);
}
uBit.serial.send("}\r\n");
}
/**
* Takes a packet from the micro:bit radio queue.
* @param writeToSerial if true, write the received packet to serial without updating the global packet;
if false, update the global packet instead
* Takes the next packet from the radio queue and returns its contents in a Buffer
*/
void receivePacket(bool writeToSerial) {
PacketBuffer p = uBit.radio.datagram.recv();
uint8_t* buf = p.getBytes();
uint8_t tp;
int t;
int s;
int iv = 0;
double dv = 0;
String m = NULL;
Buffer b = NULL;
memcpy(&tp, buf, 1);
memcpy(&t, buf + 1, 4);
memcpy(&s, buf + 5, 4);
switch(tp) {
case PACKET_TYPE_STRING:
m = getStringValue(buf + PACKET_PREFIX_LENGTH, MAX_PAYLOAD_LENGTH - 1);
break;
case PACKET_TYPE_BUFFER:
b = getBufferValue(buf + PACKET_PREFIX_LENGTH, MAX_PAYLOAD_LENGTH - 1);
break;
case PACKET_TYPE_DOUBLE:
case PACKET_TYPE_DOUBLE_VALUE:
memcpy(&dv, buf + PACKET_PREFIX_LENGTH, sizeof(double));
if (tp == PACKET_TYPE_DOUBLE_VALUE) {
m = getStringValue(buf + DOUBLE_VALUE_PACKET_NAME_LEN_OFFSET, MAX_FIELD_DOUBLE_NAME_LENGTH);
}
break;
case PACKET_TYPE_NUMBER:
case PACKET_TYPE_VALUE:
memcpy(&iv, buf + PACKET_PREFIX_LENGTH, sizeof(int));
if (tp == PACKET_TYPE_VALUE) {
m = getStringValue(buf + VALUE_PACKET_NAME_LEN_OFFSET, MAX_FIELD_NAME_LENGTH);
}
break;
default: // unknown packet
return;
}
if (NULL == m)
m = mkString("", 0);
if (NULL == b)
b = mkBuffer(NULL, 0);
if (!writeToSerial) {
// Refresh global packet
packet = p;
type = tp;
time = t;
serial = s;
ivalue = iv;
dvalue = dv;
decrRC(msg);
decrRC(bufMsg);
msg = m;
bufMsg = b;
}
else {
writePacketAsJSON(tp, iv, dv, s, t, m, b);
decrRC(m);
decrRC(b);
}
//% help=radio/received-packet
Buffer readRawPacket() {
if (radioEnable() != MICROBIT_OK) return mkBuffer(NULL, 0);
packet = uBit.radio.datagram.recv();
return mkBuffer(packet.getBytes(), packet.length());
}
/**
* Broadcasts a number over radio to any connected micro:bit in the group.
* Sends a raw packet through the radio
*/
//% help=radio/send-number
//% weight=60
//% blockId=radio_datagram_send block="radio send number %value" blockGap=8
void sendNumber(TNumber value) {
if (radioEnable() != MICROBIT_OK) return;
int iv = toInt(value);
double dv = toDouble(value);
if (iv == dv) {
uint8_t length = PACKET_PREFIX_LENGTH + sizeof(int);
uint8_t buf[length];
memset(buf, 0, length);
setPacketPrefix(buf, PACKET_TYPE_NUMBER);
memcpy(buf + PACKET_PREFIX_LENGTH, &iv, sizeof(int));
uBit.radio.datagram.send(buf, length);
} else {
uint8_t length = PACKET_PREFIX_LENGTH + sizeof(double);
uint8_t buf[length];
memset(buf, 0, length);
setPacketPrefix(buf, PACKET_TYPE_DOUBLE);
memcpy(buf + PACKET_PREFIX_LENGTH, &dv, sizeof(double));
uBit.radio.datagram.send(buf, length);
}
}
/**
* Broadcasts a name / value pair along with the device serial number
* and running time to any connected micro:bit in the group. The name can
* include no more than 8 characters.
* @param name the field name (max 8 characters), eg: "name"
* @param value the numeric value
*/
//% help=radio/send-value
//% weight=59
//% blockId=radio_datagram_send_value block="radio send|value %name|= %value" blockGap=8
void sendValue(String name, TNumber value) {
if (radioEnable() != MICROBIT_OK) return;
uint8_t buf[32];
memset(buf, 0, 32);
int iv = toInt(value);
double dv = toDouble(value);
if (iv == dv) {
setPacketPrefix(buf, PACKET_TYPE_VALUE);
memcpy(buf + PACKET_PREFIX_LENGTH, &iv, sizeof(int));
int stringLen = copyStringValue(buf + VALUE_PACKET_NAME_LEN_OFFSET, name, MAX_FIELD_DOUBLE_NAME_LENGTH);
uBit.radio.datagram.send(buf, VALUE_PACKET_NAME_LEN_OFFSET + stringLen);
} else {
setPacketPrefix(buf, PACKET_TYPE_DOUBLE_VALUE);
memcpy(buf + PACKET_PREFIX_LENGTH, &dv, sizeof(double));
int stringLen = copyStringValue(buf + DOUBLE_VALUE_PACKET_NAME_LEN_OFFSET, name, MAX_FIELD_NAME_LENGTH);
uBit.radio.datagram.send(buf, DOUBLE_VALUE_PACKET_NAME_LEN_OFFSET + stringLen);
}
}
/**
* Broadcasts a string along with the device serial number
* and running time to any connected micro:bit in the group.
*/
//% help=radio/send-string
//% weight=58
//% blockId=radio_datagram_send_string block="radio send string %msg"
//% msg.shadowOptions.toString=true
void sendString(String msg) {
if (radioEnable() != MICROBIT_OK || NULL == msg) return;
uint8_t buf[32];
memset(buf, 0, 32);
setPacketPrefix(buf, PACKET_TYPE_STRING);
int stringLen = copyStringValue(buf + PACKET_PREFIX_LENGTH, msg, MAX_PAYLOAD_LENGTH - 1);
uBit.radio.datagram.send(buf, PACKET_PREFIX_LENGTH + stringLen);
}
/**
* Broadcasts a buffer (up to 19 bytes long) along with the device serial number
* and running time to any connected micro:bit in the group.
*/
//% help=radio/send-buffer
//% weight=57
//% advanced=true
void sendBuffer(Buffer msg) {
void sendRawPacket(Buffer msg) {
if (radioEnable() != MICROBIT_OK || NULL == msg) return;
uint8_t buf[32];
memset(buf, 0, 32);
setPacketPrefix(buf, PACKET_TYPE_BUFFER);
int bufLen = copyBufferValue(buf + PACKET_PREFIX_LENGTH, msg, MAX_PAYLOAD_LENGTH - 1);
uBit.radio.datagram.send(buf, PACKET_PREFIX_LENGTH + bufLen);
}
/**
* Reads the next packet from the radio queue and and writes it to serial
* as JSON.
*/
//% help=radio/write-value-to-serial
//% weight=3
//% blockId=radio_write_value_serial block="radio write value to serial"
//% deprecated=true
void writeValueToSerial() {
if (radioEnable() != MICROBIT_OK) return;
receivePacket(true);
}
/**
* Writes the last received packet to serial as JSON. This should be called
* within an ``onDataPacketReceived`` callback.
*/
//% help=radio/write-received-packet-to-serial
//% weight=3
//% blockId=radio_write_packet_serial block="radio write received packet to serial"
//% advanced=true
void writeReceivedPacketToSerial() {
if (radioEnable() != MICROBIT_OK) return;
writePacketAsJSON(type, ivalue, dvalue, (int) serial, (int) time, msg, bufMsg);
}
TNumber readNumber() {
if (type == PACKET_TYPE_NUMBER || type == PACKET_TYPE_VALUE)
return fromInt(ivalue);
else if (type == PACKET_TYPE_DOUBLE || type == PACKET_TYPE_DOUBLE_VALUE)
return fromDouble(dvalue);
else
return fromInt(0);
}
/**
* Reads the next packet from the radio queue and returns the packet's number
* payload or 0 if the packet did not contain a number.
*/
//% help=radio/receive-number
//% weight=46
//% blockId=radio_datagram_receive block="radio receive number" blockGap=8
//% deprecated=true
TNumber receiveNumber()
{
if (radioEnable() != MICROBIT_OK) return 0;
receivePacket(false);
return readNumber();
uBit.radio.datagram.send(msg->data, msg->length);
}
/**
@ -390,23 +64,7 @@ namespace radio {
void onDataReceived(Action body) {
if (radioEnable() != MICROBIT_OK) return;
registerWithDal(MICROBIT_ID_RADIO, MICROBIT_RADIO_EVT_DATAGRAM, body);
// make sure the receive buffer has a free spot
receivePacket(false);
}
/**
* Reads the next packet from the radio queue and returns the packet's string
* payload or the empty string if the packet did not contain a string.
*/
//% blockId=radio_datagram_receive_string block="radio receive string" blockGap=8
//% weight=44
//% help=radio/receive-string
//% deprecated=true
String receiveString() {
if (radioEnable() != MICROBIT_OK) return mkString("", 0);
receivePacket(false);
return msg;
readRawPacket();
}
/**
@ -419,7 +77,7 @@ namespace radio {
//% blockId=radio_datagram_rssi block="radio received signal strength"
//% deprecated=true
int receivedSignalStrength() {
if (radioEnable() != MICROBIT_OK) return 0;
if (radioEnable() != MICROBIT_OK || packet == NULL) return 0;
return packet.getRSSI();
}
@ -449,74 +107,4 @@ namespace radio {
if (radioEnable() != MICROBIT_OK) return;
uBit.radio.setTransmitPower(power);
}
/**
* Set the radio to transmit the serial number in each message.
* @param transmit value indicating if the serial number is transmitted, eg: true
*/
//% help=radio/set-transmit-serial-number
//% weight=8 blockGap=8
//% blockId=radio_set_transmit_serial_number block="radio set transmit serial number %transmit"
//% advanced=true
void setTransmitSerialNumber(bool transmit) {
if (radioEnable() != MICROBIT_OK) return;
transmitSerialNumber = transmit;
}
/**
* Returns the number payload from the last packet taken from the radio queue
* (via ``receiveNumber``, ``receiveString``, etc) or 0 if that packet did not
* contain a number.
*/
//% help=radio/received-number
TNumber receivedNumber() {
if (radioEnable() != MICROBIT_OK) return 0;
return readNumber();
}
/**
* Returns the serial number of the sender micro:bit from the last packet taken
* from the radio queue (via ``receiveNumber``, ``receiveString``, etc) or 0 if
* that packet did not send a serial number.
*/
//% help=radio/received-serial
uint32_t receivedSerial() {
if (radioEnable() != MICROBIT_OK) return 0;
return serial;
}
/**
* Returns the string payload from the last packet taken from the radio queue
* (via ``receiveNumber``, ``receiveString``, etc) or the empty string if that
* packet did not contain a string.
*/
//% help=radio/received-string
String receivedString() {
if (radioEnable() != MICROBIT_OK || NULL == msg) return mkString("", 0);
incrRC(msg);
return msg;
}
/**
* Returns the buffer payload from the last packet taken from the radio queue
* (via ``receiveNumber``, ``receiveString``, etc) or the empty string if that
* packet did not contain a string.
*/
//% help=radio/received-buffer
Buffer receivedBuffer() {
if (radioEnable() != MICROBIT_OK || NULL == bufMsg) return mkBuffer(NULL, 0);
incrRC(bufMsg);
return bufMsg;
}
/**
* Returns the system time of the sender micro:bit at the moment when it sent the
* last packet taken from the radio queue (via ``receiveNumber``,
* ``receiveString``, etc).
*/
//% help=radio/received-time
uint32_t receivedTime() {
if (radioEnable() != MICROBIT_OK) return 0;
return time;
}
}

480
libs/radio/radio.ts
View File

@ -16,182 +16,121 @@ enum RadioPacketProperty {
*/
//% color=#E3008C weight=96 icon="\uf012"
namespace radio {
export class Packet {
/**
* The number payload if a number was sent in this packet (via ``sendNumber()`` or ``sendValue()``)
* or 0 if this packet did not contain a number.
*/
public receivedNumber: number;
/**
* The string payload if a string was sent in this packet (via ``sendString()`` or ``sendValue()``)
* or the empty string if this packet did not contain a string.
*/
public receivedString: string;
/**
* The buffer payload if a buffer was sent in this packet
* or the empty buffer
*/
public receivedBuffer: Buffer;
/**
* The system time of the sender of the packet at the time the packet was sent.
*/
public time: number;
/**
* The serial number of the sender of the packet or 0 if the sender did not sent their serial number.
*/
public serial: number;
/**
* The received signal strength indicator (RSSI) of the packet.
*/
public signal: number;
}
export const MAKECODE_RADIO_EVT_NUMBER = 10;
export const MAKECODE_RADIO_EVT_STRING = 11;
export const MAKECODE_RADIO_EVT_BUFFER = 12;
export const MAKECODE_RADIO_EVT_VALUE = 13;
const MAX_FIELD_DOUBLE_NAME_LENGTH = 8;
const MAX_PAYLOAD_LENGTH = 20;
const PACKET_PREFIX_LENGTH = 9;
const VALUE_PACKET_NAME_LEN_OFFSET = 13;
const DOUBLE_VALUE_PACKET_NAME_LEN_OFFSET = 17;
// Packet Spec:
// | 0 | 1 ... 4 | 5 ... 8 | 9 ... 28
// ----------------------------------------------------------------
// | packet type | system time | serial number | payload
//
// Serial number defaults to 0 unless enabled by user
// payload: number (9 ... 12)
const PACKET_TYPE_NUMBER = 0;
// payload: number (9 ... 12), name length (13), name (14 ... 26)
const PACKET_TYPE_VALUE = 1;
// payload: string length (9), string (10 ... 28)
const PACKET_TYPE_STRING = 2;
// payload: buffer length (9), buffer (10 ... 28)
const PACKET_TYPE_BUFFER = 3;
// payload: number (9 ... 16)
const PACKET_TYPE_DOUBLE = 4;
// payload: number (9 ... 16), name length (17), name (18 ... 26)
const PACKET_TYPE_DOUBLE_VALUE = 5;
let transmittingSerial: boolean;
let initialized = false;
export let lastPacket: RadioPacket;
function init() {
if (initialized) return;
initialized = true;
/**
* Registers code to run when the radio receives a packet. Also takes the
* received packet from the radio queue.
*/
//% help=radio/on-data-packet-received blockHandlerKey="radioreceived" deprecated=true
//% mutate=objectdestructuring
//% mutateText=Packet
//% mutateDefaults="receivedNumber;receivedString:name,receivedNumber:value;receivedString"
//% blockId=radio_on_packet block="on radio received" blockGap=8
export function onDataPacketReceived(cb: (packet: Packet) => void) {
onDataReceived(() => {
receiveNumber();
const packet = new Packet();
packet.receivedNumber = receivedNumber();
packet.time = receivedTime();
packet.serial = receivedSerial();
packet.receivedString = receivedString();
packet.receivedBuffer = receivedBuffer();
packet.signal = receivedSignalStrength();
lastPacket = packet;
cb(packet)
});
lastPacket = RadioPacket.getPacket(readRawPacket());
lastPacket.signal = receivedSignalStrength();
switch (lastPacket.packetType) {
case PACKET_TYPE_NUMBER:
case PACKET_TYPE_DOUBLE:
control.raiseEvent(DAL.MICROBIT_ID_RADIO, MAKECODE_RADIO_EVT_NUMBER);
break;
case PACKET_TYPE_VALUE:
case PACKET_TYPE_DOUBLE_VALUE:
control.raiseEvent(DAL.MICROBIT_ID_RADIO, MAKECODE_RADIO_EVT_VALUE);
break;
case PACKET_TYPE_BUFFER:
control.raiseEvent(DAL.MICROBIT_ID_RADIO, MAKECODE_RADIO_EVT_BUFFER);
break;
case PACKET_TYPE_STRING:
control.raiseEvent(DAL.MICROBIT_ID_RADIO, MAKECODE_RADIO_EVT_STRING);
break;
}
})
}
/**
* Registers code to run when the radio receives a number.
*/
//% help=radio/on-received-number blockHandlerKey="radioreceived"
//% help=radio/on-received-number
//% blockId=radio_on_number_drag block="on radio received" blockGap=16
//% useLoc="radio.onDataPacketReceived" draggableParameters=reporter
export function onReceivedNumber(cb: (receivedNumber: number) => void) {
onDataReceived(() => {
receiveNumber();
const packet = new Packet();
packet.time = receivedTime();
packet.serial = receivedSerial();
packet.signal = receivedSignalStrength();
packet.receivedNumber = receivedNumber();
lastPacket = packet;
cb(packet.receivedNumber);
init();
control.onEvent(DAL.MICROBIT_ID_RADIO, MAKECODE_RADIO_EVT_NUMBER, () => {
cb(lastPacket.numberPayload);
});
}
/**
* Registers code to run when the radio receives a key value pair.
*/
//% help=radio/on-received-value blockHandlerKey="radioreceived"
//% help=radio/on-received-value
//% blockId=radio_on_value_drag block="on radio received" blockGap=16
//% useLoc="radio.onDataPacketReceived" draggableParameters=reporter
export function onReceivedValue(cb: (name: string, value: number) => void) {
onDataReceived(() => {
receiveNumber();
const packet = new Packet();
packet.time = receivedTime();
packet.serial = receivedSerial();
packet.signal = receivedSignalStrength();
packet.receivedNumber = receivedNumber();
packet.receivedString = receivedString();
lastPacket = packet;
cb(packet.receivedString, packet.receivedNumber)
init();
control.onEvent(DAL.MICROBIT_ID_RADIO, MAKECODE_RADIO_EVT_VALUE, () => {
cb(lastPacket.stringPayload, lastPacket.numberPayload);
});
}
/**
* Registers code to run when the radio receives a string.
*/
//% help=radio/on-received-string blockHandlerKey="radioreceived"
//% help=radio/on-received-string
//% blockId=radio_on_string_drag block="on radio received" blockGap=16
//% useLoc="radio.onDataPacketReceived" draggableParameters=reporter
export function onReceivedString(cb: (receivedString: string) => void) {
onDataReceived(() => {
receiveNumber();
const packet = new Packet();
packet.time = receivedTime();
packet.serial = receivedSerial();
packet.signal = receivedSignalStrength();
packet.receivedString = receivedString();
lastPacket = packet;
cb(packet.receivedString);
init();
control.onEvent(DAL.MICROBIT_ID_RADIO, MAKECODE_RADIO_EVT_STRING, () => {
cb(lastPacket.stringPayload);
});
}
/**
* Registers code to run when the radio receives a buffer.
*/
//% help=radio/on-received-buffer blockHandlerKey="radioreceived" blockHidden=1
//% help=radio/on-received-buffer blockHidden=1
//% blockId=radio_on_buffer_drag block="on radio received" blockGap=16
//% useLoc="radio.onDataPacketReceived" draggableParameters=reporter
export function onReceivedBuffer(cb: (receivedBuffer: Buffer) => void) {
onDataReceived(() => {
receiveNumber();
const packet = new Packet();
packet.time = receivedTime();
packet.serial = receivedSerial();
packet.signal = receivedSignalStrength();
packet.receivedBuffer = receivedBuffer();
lastPacket = packet;
cb(packet.receivedBuffer)
init();
control.onEvent(DAL.MICROBIT_ID_RADIO, MAKECODE_RADIO_EVT_BUFFER, () => {
cb(lastPacket.bufferPayload);
});
}
/**
* Registers code to run when the radio receives a number. Deprecated, use
* onReceivedNumber instead.
*/
//% help=radio/on-received-number blockHandlerKey="radioreceived"
//% blockId=radio_on_number block="on radio received" blockGap=16
//% useLoc="radio.onDataPacketReceived" deprecated=1
export function onReceivedNumberDeprecated(cb: (receivedNumber: number) => void) {
onReceivedNumber(cb);
}
/**
* Registers code to run when the radio receives a key value pair. Deprecated, use
* onReceivedValue instead.
*/
//% help=radio/on-received-value blockHandlerKey="radioreceived"
//% blockId=radio_on_value block="on radio received" blockGap=16
//% useLoc="radio.onDataPacketReceived" deprecated=1
export function onReceivedValueDeprecated(cb: (name: string, value: number) => void) {
onReceivedValue(cb);
}
/**
* Registers code to run when the radio receives a string. Deprecated, use
* onReceivedString instead.
*/
//% help=radio/on-received-string blockHandlerKey="radioreceived"
//% blockId=radio_on_string block="on radio received" blockGap=16
//% useLoc="radio.onDataPacketReceived" deprecated=1
export function onReceivedStringDeprecated(cb: (receivedString: string) => void) {
onReceivedString(cb);
}
/**
* Registers code to run when the radio receives a buffer. Deprecated, use
* onReceivedBuffer instead.
*/
//% help=radio/on-received-buffer blockHandlerKey="radioreceived" blockHidden=1
//% blockId=radio_on_buffer block="on radio received" blockGap=16
//% useLoc="radio.onDataPacketReceived" deprecated=1
export function onReceivedBufferDeprecated(cb: (receivedBuffer: Buffer) => void) {
onReceivedBuffer(cb);
}
let lastPacket: Packet;
/**
* Returns properties of the last radio packet received.
* @param type the type of property to retrieve from the last packet
@ -219,4 +158,271 @@ namespace radio {
export function _packetProperty(type: RadioPacketProperty): number {
return type;
}
}
export class RadioPacket {
public static getPacket(data: Buffer) {
return new RadioPacket(data);
}
public static mkPacket(packetType: number) {
const res = new RadioPacket();
res.data[0] = packetType;
return res;
}
private constructor(public readonly data?: Buffer) {
if (!data) this.data = control.createBuffer(32);
}
public signal: number;
get packetType() {
return this.data[0];
}
get time() {
return this.data.getNumber(NumberFormat.Int32LE, 1);
}
set time(val: number) {
this.data.setNumber(NumberFormat.Int32LE, 1, val);
}
get serial() {
return this.data.getNumber(NumberFormat.Int32LE, 5);
}
set serial(val: number) {
this.data.setNumber(NumberFormat.Int32LE, 5, val);
}
get stringPayload() {
const offset = getStringOffset(this.packetType) as number;
return offset ? this.data.slice(offset + 1, this.data[offset]).toString() : undefined;
}
set stringPayload(val: string) {
const offset = getStringOffset(this.packetType) as number;
if (offset) {
const buf = control.createBufferFromUTF8(truncateString(val, getMaxStringLength(this.packetType)));
this.data[offset] = buf.length;
this.data.write(offset + 1, buf);
}
}
get numberPayload() {
switch (this.packetType) {
case PACKET_TYPE_NUMBER:
case PACKET_TYPE_VALUE:
return this.data.getNumber(NumberFormat.Int32LE, PACKET_PREFIX_LENGTH);
case PACKET_TYPE_DOUBLE:
case PACKET_TYPE_DOUBLE_VALUE:
return this.data.getNumber(NumberFormat.Float64LE, PACKET_PREFIX_LENGTH);
}
return undefined;
}
set numberPayload(val: number) {
switch (this.packetType) {
case PACKET_TYPE_NUMBER:
case PACKET_TYPE_VALUE:
this.data.setNumber(NumberFormat.Int32LE, PACKET_PREFIX_LENGTH, val);
break;
case PACKET_TYPE_DOUBLE:
case PACKET_TYPE_DOUBLE_VALUE:
this.data.setNumber(NumberFormat.Float64LE, PACKET_PREFIX_LENGTH, val);
break;
}
}
get bufferPayload() {
const len = this.data[PACKET_PREFIX_LENGTH];
return this.data.slice(PACKET_PREFIX_LENGTH + 1, len);
}
set bufferPayload(b: Buffer) {
const len = Math.min(b.length, MAX_PAYLOAD_LENGTH - 1);
this.data[PACKET_PREFIX_LENGTH] = len;
this.data.write(PACKET_PREFIX_LENGTH + 1, b.slice(0, len));
}
hasString() {
return this.packetType === PACKET_TYPE_STRING ||
this.packetType === PACKET_TYPE_VALUE ||
this.packetType === PACKET_TYPE_DOUBLE_VALUE;
}
hasNumber() {
return this.packetType === PACKET_TYPE_NUMBER ||
this.packetType === PACKET_TYPE_DOUBLE ||
this.packetType === PACKET_TYPE_VALUE ||
this.packetType === PACKET_TYPE_DOUBLE_VALUE;
}
}
/**
* Broadcasts a number over radio to any connected micro:bit in the group.
*/
//% help=radio/send-number
//% weight=60
//% blockId=radio_datagram_send block="radio send number %value" blockGap=8
export function sendNumber(value: number) {
let packet: RadioPacket;
if (value === (value | 0)) {
packet = RadioPacket.mkPacket(PACKET_TYPE_NUMBER);
}
else {
packet = RadioPacket.mkPacket(PACKET_TYPE_DOUBLE);
}
packet.numberPayload = value;
sendPacket(packet);
}
/**
* Broadcasts a name / value pair along with the device serial number
* and running time to any connected micro:bit in the group. The name can
* include no more than 8 characters.
* @param name the field name (max 8 characters), eg: "name"
* @param value the numeric value
*/
//% help=radio/send-value
//% weight=59
//% blockId=radio_datagram_send_value block="radio send|value %name|= %value" blockGap=8
export function sendValue(name: string, value: number) {
let packet: RadioPacket;
if (value === (value | 0)) {
packet = RadioPacket.mkPacket(PACKET_TYPE_VALUE);
}
else {
packet = RadioPacket.mkPacket(PACKET_TYPE_DOUBLE_VALUE);
}
packet.numberPayload = value;
packet.stringPayload = name;
sendPacket(packet);
}
/**
* Broadcasts a string along with the device serial number
* and running time to any connected micro:bit in the group.
*/
//% help=radio/send-string
//% weight=58
//% blockId=radio_datagram_send_string block="radio send string %msg"
//% msg.shadowOptions.toString=true
export function sendString(value: string) {
const packet = RadioPacket.mkPacket(PACKET_TYPE_STRING);
packet.stringPayload = value;
sendPacket(packet);
}
/**
* Broadcasts a buffer (up to 19 bytes long) along with the device serial number
* and running time to any connected micro:bit in the group.
*/
//% help=radio/send-buffer
//% weight=57
//% advanced=true
export function sendBuffer(msg: Buffer) {
const packet = RadioPacket.mkPacket(PACKET_TYPE_BUFFER);
packet.bufferPayload = msg;
sendPacket(packet);
}
/**
* Writes the last received packet to serial as JSON. This should be called
* within an ``onDataPacketReceived`` callback.
*/
//% help=radio/write-received-packet-to-serial
//% weight=3
//% blockId=radio_write_packet_serial block="radio write received packet to serial"
//% advanced=true
export function writeReceivedPacketToSerial() {
if (lastPacket) writeToSerial(lastPacket)
}
/**
* Set the radio to transmit the serial number in each message.
* @param transmit value indicating if the serial number is transmitted, eg: true
*/
//% help=radio/set-transmit-serial-number
//% weight=8 blockGap=8
//% blockId=radio_set_transmit_serial_number block="radio set transmit serial number %transmit"
//% advanced=true
export function setTransmitSerialNumber(transmit: boolean) {
transmittingSerial = transmit;
}
export function writeToSerial(packet: RadioPacket) {
serial.writeString("{");
serial.writeString("\"t\":");
serial.writeString("" + packet.time);
serial.writeString(",\"s\":");
serial.writeString("" + packet.serial);
if (packet.hasString()) {
serial.writeString(",\"n\":\"");
serial.writeString(packet.stringPayload);
serial.writeString("\"");
}
if (packet.packetType == PACKET_TYPE_BUFFER) {
serial.writeString(",\"b\":\"");
// TODO: proper base64 encoding
serial.writeString(packet.bufferPayload.toString());
serial.writeString("\"");
}
if (packet.hasNumber()) {
serial.writeString(",\"v\":");
serial.writeString("" + packet.numberPayload);
}
serial.writeString("}\r\n");
}
function sendPacket(packet: RadioPacket) {
packet.time = input.runningTime();
packet.serial = transmittingSerial ? control.deviceSerialNumber() : 0;
radio.sendRawPacket(packet.data);
}
function truncateString(str: string, bytes: number) {
str = str.substr(0, bytes);
let buff = control.createBufferFromUTF8(str);
while (buff.length > bytes) {
str = str.substr(0, str.length - 1);
buff = control.createBufferFromUTF8(str);
}
return str;
}
function getStringOffset(packetType: number) {
switch (packetType) {
case PACKET_TYPE_STRING:
return PACKET_PREFIX_LENGTH;
case PACKET_TYPE_VALUE:
return VALUE_PACKET_NAME_LEN_OFFSET;
case PACKET_TYPE_DOUBLE_VALUE:
return DOUBLE_VALUE_PACKET_NAME_LEN_OFFSET;
default:
return undefined;
}
}
function getMaxStringLength(packetType: number) {
switch (packetType) {
case PACKET_TYPE_STRING:
return MAX_PAYLOAD_LENGTH - 2;
case PACKET_TYPE_VALUE:
case PACKET_TYPE_DOUBLE_VALUE:
return MAX_FIELD_DOUBLE_NAME_LENGTH;
default:
return undefined;
}
}
}

130
libs/radio/shims.d.ts vendored
View File

@ -8,7 +8,7 @@ declare namespace radio {
/**
* Sends an event over radio to neigboring devices
*/
//% blockId=radioRaiseEvent block="radio raise event|from source %src=control_event_source_id|with value %value=control_event_value_id"
//% blockId=radioRaiseEvent block="radio raise event|from source %src=control_event_source_id|with value %value=control_event_value_id"
//% blockExternalInputs=1
//% advanced=true
//% weight=1
@ -16,72 +16,16 @@ declare namespace radio {
function raiseEvent(src: int32, value: int32): void;
/**
* Broadcasts a number over radio to any connected micro:bit in the group.
* Takes the next packet from the radio queue and returns its contents in a Buffer
*/
//% help=radio/send-number
//% weight=60
//% blockId=radio_datagram_send block="radio send number %value" blockGap=8 shim=radio::sendNumber
function sendNumber(value: number): void;
//% help=radio/received-packet shim=radio::readRawPacket
function readRawPacket(): Buffer;
/**
* Broadcasts a name / value pair along with the device serial number
* and running time to any connected micro:bit in the group.
* @param name the field name (max 12 characters), eg: "name"
* @param value the numeric value
* Sends a raw packet through the radio
*/
//% help=radio/send-value
//% weight=59
//% blockId=radio_datagram_send_value block="radio send|value %name|= %value" blockGap=8 shim=radio::sendValue
function sendValue(name: string, value: number): void;
/**
* Broadcasts a string along with the device serial number
* and running time to any connected micro:bit in the group.
*/
//% help=radio/send-string
//% weight=58
//% blockId=radio_datagram_send_string block="radio send string %msg"
//% msg.shadowOptions.toString=true shim=radio::sendString
function sendString(msg: string): void;
/**
* Broadcasts a buffer (up to 19 bytes long) along with the device serial number
* and running time to any connected micro:bit in the group.
*/
//% help=radio/send-buffer
//% weight=57
//% advanced=true shim=radio::sendBuffer
function sendBuffer(msg: Buffer): void;
/**
* Reads the next packet from the radio queue and and writes it to serial
* as JSON.
*/
//% help=radio/write-value-to-serial
//% weight=3
//% blockId=radio_write_value_serial block="radio write value to serial"
//% deprecated=true shim=radio::writeValueToSerial
function writeValueToSerial(): void;
/**
* Writes the last received packet to serial as JSON. This should be called
* within an ``onDataPacketReceived`` callback.
*/
//% help=radio/write-received-packet-to-serial
//% weight=3
//% blockId=radio_write_packet_serial block="radio write received packet to serial"
//% advanced=true shim=radio::writeReceivedPacketToSerial
function writeReceivedPacketToSerial(): void;
/**
* Reads the next packet from the radio queue and returns the packet's number
* payload or 0 if the packet did not contain a number.
*/
//% help=radio/receive-number
//% weight=46
//% blockId=radio_datagram_receive block="radio receive number" blockGap=8
//% deprecated=true shim=radio::receiveNumber
function receiveNumber(): number;
//% advanced=true shim=radio::sendRawPacket
function sendRawPacket(msg: Buffer): void;
/**
* Registers code to run when a packet is received over radio.
@ -92,16 +36,6 @@ declare namespace radio {
//% deprecated=true shim=radio::onDataReceived
function onDataReceived(body: () => void): void;
/**
* Reads the next packet from the radio queue and returns the packet's string
* payload or the empty string if the packet did not contain a string.
*/
//% blockId=radio_datagram_receive_string block="radio receive string" blockGap=8
//% weight=44
//% help=radio/receive-string
//% deprecated=true shim=radio::receiveString
function receiveString(): string;
/**
* Gets the received signal strength indicator (RSSI) from the last packet taken
* from the radio queue (via ``receiveNumber``, ``receiveString``, etc). Not supported in simulator.
@ -133,56 +67,6 @@ declare namespace radio {
//% power.min=0 power.max=7
//% advanced=true shim=radio::setTransmitPower
function setTransmitPower(power: int32): void;
/**
* Set the radio to transmit the serial number in each message.
* @param transmit value indicating if the serial number is transmitted, eg: true
*/
//% help=radio/set-transmit-serial-number
//% weight=8 blockGap=8
//% blockId=radio_set_transmit_serial_number block="radio set transmit serial number %transmit"
//% advanced=true shim=radio::setTransmitSerialNumber
function setTransmitSerialNumber(transmit: boolean): void;
/**
* Returns the number payload from the last packet taken from the radio queue
* (via ``receiveNumber``, ``receiveString``, etc) or 0 if that packet did not
* contain a number.
*/
//% help=radio/received-number shim=radio::receivedNumber
function receivedNumber(): number;
/**
* Returns the serial number of the sender micro:bit from the last packet taken
* from the radio queue (via ``receiveNumber``, ``receiveString``, etc) or 0 if
* that packet did not send a serial number.
*/
//% help=radio/received-serial shim=radio::receivedSerial
function receivedSerial(): uint32;
/**
* Returns the string payload from the last packet taken from the radio queue
* (via ``receiveNumber``, ``receiveString``, etc) or the empty string if that
* packet did not contain a string.
*/
//% help=radio/received-string shim=radio::receivedString
function receivedString(): string;
/**
* Returns the buffer payload from the last packet taken from the radio queue
* (via ``receiveNumber``, ``receiveString``, etc) or the empty string if that
* packet did not contain a string.
*/
//% help=radio/received-buffer shim=radio::receivedBuffer
function receivedBuffer(): Buffer;
/**
* Returns the system time of the sender micro:bit at the moment when it sent the
* last packet taken from the radio queue (via ``receiveNumber``,
* ``receiveString``, etc).
*/
//% help=radio/received-time shim=radio::receivedTime
function receivedTime(): uint32;
}
// Auto-generated. Do not edit. Really.

349
libs/radio/test.ts Normal file
View File

@ -0,0 +1,349 @@
/**
* Tests for the radio. Press A on mbit 1 and B on mbit 2 to run the tests.
* Sends random ints, doubles, strings, and buffers and checks them on
* the other side
*/
class FastRandom {
private lfsr: number;
public seed: number;
constructor(seed?: number) {
if (seed === undefined) seed = Math.randomRange(0x0001, 0xFFFF);
this.seed = seed;
this.lfsr = seed;
}
next(): number {
return this.lfsr = (this.lfsr >> 1) ^ ((-(this.lfsr & 1)) & 0xb400);
}
randomRange(min: number, max: number): number {
return min + (max > min ? this.next() % (max - min + 1) : 0);
}
reset() {
this.lfsr = this.seed;
}
}
enum TestStage {
Integer,
String,
Double,
IntValue,
DblValue,
Buffer
}
const TEST_COUNT = 30;
radio.setGroup(78)
const rand = new FastRandom(1234);
let stage = TestStage.Integer;
function initSender() {
let lastReceived: number;
let lastString: string;
let testIndex = 0;
let lastBuf: Buffer;
let lastAck = -1;
rand.reset();
basic.clearScreen();
// Send loop
control.inBackground(function () {
while (true) {
for (let i = 0; i < TEST_COUNT; i++) {
toggle(testIndex);
if (stage === TestStage.Integer) {
lastReceived = getNextInt();
}
else if (stage === TestStage.Double) {
lastReceived = getNextDouble();
}
else if (stage === TestStage.IntValue) {
lastString = getNextName();
console.log(truncateString(lastString, 8))
lastReceived = getNextInt();
}
else if (stage === TestStage.DblValue) {
lastString = getNextName();
lastReceived = getNextDouble();
}
else if (stage === TestStage.String) {
lastString = getNextString();
console.log(truncateString(lastString, 19))
}
else if (stage === TestStage.Buffer) {
lastBuf = getNextBuffer();
}
while (lastAck !== testIndex) {
if (stage === TestStage.Integer || stage === TestStage.Double) {
radio.sendNumber(lastReceived)
}
else if (stage === TestStage.IntValue || stage === TestStage.DblValue) {
radio.sendValue(lastString, lastReceived)
}
else if (stage === TestStage.String) {
radio.sendString(lastString);
}
else if (stage === TestStage.Buffer) {
radio.sendBuffer(lastBuf);
}
basic.pause(10);
}
testIndex++;
}
stage++;
if (stage > TestStage.Buffer) {
basic.showIcon(IconNames.Yes);
return;
}
}
})
radio.onReceivedNumber(function (receivedNumber: number) {
if (receivedNumber > lastAck) {
lastAck = receivedNumber;
}
});
}
let lastReceived: number;
let lastString: string;
let testIndex = -1;
let running = true;
let lastBuf: Buffer;
let lastPacket = new radio.Packet();
let currentPacket = new radio.Packet();
function truncateString(str: string, bytes: number) {
str = str.substr(0, bytes);
let buff = control.createBufferFromUTF8(str);
while (buff.length > bytes) {
str = str.substr(0, str.length - 1);
buff = control.createBufferFromUTF8(str);
}
return str;
}
function initReceiver() {
rand.reset();
basic.clearScreen();
radio.onDataReceived(function () {
radio.receiveNumber();
currentPacket.receivedNumber = radio.receivedNumber();
currentPacket.receivedString = radio.receivedString();
currentPacket.receivedBuffer = radio.receivedBuffer();
if (currentPacket.receivedNumber === lastPacket.receivedNumber &&
currentPacket.receivedString === lastPacket.receivedString &&
checkBufferEqual(currentPacket.receivedBuffer, lastPacket.receivedBuffer)) {
return;
}
lastPacket.receivedNumber = currentPacket.receivedNumber
lastPacket.receivedString = currentPacket.receivedString
lastPacket.receivedBuffer = currentPacket.receivedBuffer
switch (stage) {
case TestStage.Integer:
verifyInt(radio.receivedNumber());
break;
case TestStage.Double:
verifyDouble(radio.receivedNumber());
break;
case TestStage.IntValue:
verifyIntValue(radio.receivedString(), radio.receivedNumber());
break;
case TestStage.DblValue:
verifyDblValue(radio.receivedString(), radio.receivedNumber());
break;
case TestStage.String:
verifyString(radio.receivedString());
break;
case TestStage.Buffer:
verifyBuffer(radio.receivedBuffer());
break;
}
})
control.inBackground(function () {
while (running) {
radio.sendNumber(testIndex);
basic.pause(10)
}
})
}
function nextTest() {
testIndex++;
toggle(testIndex);
console.log(`test ${testIndex}`)
if (((testIndex + 1) % TEST_COUNT) === 0) {
stage++;
if (stage > TestStage.Buffer) {
basic.showIcon(IconNames.Yes)
running = false;
}
}
}
function verifyInt(int: number) {
if (int === lastReceived) return;
lastReceived = int;
if (lastReceived != getNextInt()) fail();
nextTest()
}
function verifyDouble(dbl: number) {
if (dbl === lastReceived) return;
lastReceived = dbl;
if (lastReceived != getNextDouble()) fail();
nextTest()
}
function verifyIntValue(name: string, val: number) {
if (val === lastReceived) return;
lastReceived = val;
if (name != truncateString(getNextName(), 8) || lastReceived != getNextInt()) fail();
nextTest()
}
function verifyDblValue(name: string, val: number) {
if (val === lastReceived) return;
lastReceived = val;
if (name != truncateString(getNextName(), 8) || lastReceived != getNextDouble()) fail();
nextTest()
}
function verifyString(str: string) {
if (!str || str === lastString) return;
lastString = str;
let next = truncateString(getNextString(), 19);
if (lastString !== next) {
console.log(`got ${control.createBufferFromUTF8(lastString).toHex()} expected ${control.createBufferFromUTF8(next).toHex()}`)
}
nextTest()
}
function verifyBuffer(buf: Buffer) {
if (checkBufferEqual(lastBuf, buf)) return;
lastBuf = buf;
if (!checkBufferEqual(lastBuf, getNextBuffer())) {
fail();
}
nextTest()
}
function fail() {
control.panic(testIndex);
}
let _lastInt: number;
let _lastDbl: number;
let _lastStr: string;
let _lastBuf: Buffer;
let _lastNam: string;
function getNextInt(): number {
let res = rand.next();
if (!res || res === _lastInt) return getNextInt();
_lastInt = res;
return res;
}
function getNextDouble(): number {
let res = rand.next() / rand.next();
if (res === _lastDbl) return getNextDouble();
_lastDbl = res;
return res;
}
function getNextString(): string {
let len = rand.randomRange(1, 19);
let res = "";
for (let i = 0; i < len; i++) {
res += String.fromCharCode(rand.next() & 0xbfff);
}
if (res === _lastStr) return getNextString();
_lastStr = res;
return res;
}
function getNextName(): string {
let len = rand.randomRange(1, 8);
let res = "";
for (let i = 0; i < len; i++) {
res += String.fromCharCode(rand.next() & 0xbfff);
}
if (res === _lastNam) return getNextName();
_lastNam = res;
return res;
}
function getNextBuffer(): Buffer {
let len = rand.randomRange(0, 8);
let res = control.createBuffer(len);
for (let i = 0; i < len; i++) {
res[i] = rand.next() & 0xff;
}
if (checkBufferEqual(_lastBuf, res)) return getNextBuffer();
_lastBuf = res;
return res;
}
function checkBufferEqual(a: Buffer, b: Buffer) {
if (a === b) return true;
if ((!a && b) || (a && !b)) return false;
if (a.length != b.length) return false;
for (let i = 0; i < a.length; i++) {
if (a[i] !== b[i]) return false;
}
return true;
}
input.onButtonPressed(Button.A, function () {
basic.showString("S");
initSender();
})
input.onButtonPressed(Button.B, function () {
basic.showString("R");
initReceiver();
})
function toggle(index: number) {
const x = index % 5;
const y = Math.idiv(index, 5) % 5;
led.toggle(x, y);
}

116
sim/state/radio.ts
View File

@ -96,13 +96,6 @@ namespace pxsim {
}
namespace pxsim.radio {
enum PacketPayloadType {
NUMBER = 0,
VALUE = 1,
STRING = 2,
BUFFER = 3
}
export function raiseEvent(id: number, eventid: number): void {
board().radioState.raiseEvent(id, eventid);
}
@ -115,70 +108,17 @@ namespace pxsim.radio {
board().radioState.setTransmitPower(power);
}
export function setTransmitSerialNumber(transmit: boolean): void {
board().radioState.setTransmitSerialNumber(transmit);
}
export function sendNumber(value: number): void {
export function sendRawPacket(buf: RefBuffer) {
board().radioState.datagram.send({
type: PacketPayloadType.NUMBER,
type: 0,
groupId: board().radioState.groupId,
numberData: value,
bufferData: buf.data
});
}
export function sendString(msg: string): void {
if (msg === undefined) return;
msg = msg.substr(0, 19);
board().radioState.datagram.send({
type: PacketPayloadType.STRING,
groupId: board().radioState.groupId,
stringData: msg,
});
}
export function sendBuffer(buf: RefBuffer): void {
if (!buf) return;
const data = buf.data.slice(0, 18);
board().radioState.datagram.send({
type: PacketPayloadType.STRING,
groupId: board().radioState.groupId,
bufferData: data
});
}
export function writeValueToSerial(): void {
const b = board();
writePacketToSerial(b, b.radioState.datagram.recv())
}
export function writeReceivedPacketToSerial(): void {
const b = board();
writePacketToSerial(b, b.radioState.datagram.lastReceived);
}
export function sendValue(name: string, value: number) {
name = name.substr(0, 8);
const msg: number[] = [];
msg.push()
board().radioState.datagram.send({
type: PacketPayloadType.VALUE,
groupId: board().radioState.groupId,
stringData: name,
numberData: value
});
}
export function receiveNumber(): number {
export function readRawPacket() {
const packet = board().radioState.datagram.recv();
return receivedNumber();
}
export function receiveString(): string {
const packet = board().radioState.datagram.recv();
return receivedString();
return new RefBuffer(packet.payload.bufferData)
}
export function receivedSignalStrength(): number {
@ -187,50 +127,6 @@ namespace pxsim.radio {
export function onDataReceived(handler: RefAction): void {
pxtcore.registerWithDal(DAL.MICROBIT_ID_RADIO, DAL.MICROBIT_RADIO_EVT_DATAGRAM, handler);
radio.receiveNumber();
}
export function receivedNumber(): number {
return board().radioState.datagram.lastReceived.payload.numberData || 0;
}
export function receivedSerial(): number {
return board().radioState.datagram.lastReceived.serial;
}
export function receivedString(): string {
return initString(board().radioState.datagram.lastReceived.payload.stringData || "");
}
export function receivedBuffer(): RefBuffer {
return new RefBuffer(board().radioState.datagram.lastReceived.payload.bufferData || new Uint8Array(0))
}
export function receivedTime(): number {
return board().radioState.datagram.lastReceived.time;
}
function writePacketToSerial(b: DalBoard, p: PacketBuffer) {
switch (p.payload.type) {
case PacketPayloadType.NUMBER:
b.writeSerial(`{"t":${p.time},"s":${p.serial},"v":${p.payload.numberData}}\r\n`)
break;
case PacketPayloadType.VALUE:
b.writeSerial(`{"t":${p.time},"s":${p.serial},"n":"${p.payload.stringData}","v":${p.payload.numberData}}\r\n`)
break;
case PacketPayloadType.STRING:
b.writeSerial(`{"t":${p.time},"s":${p.serial},"n":"${p.payload.stringData}"}\r\n`)
break;
// TODO: (microbit master)
// case PacketPayloadType.BUFFER:
// const buf = new Uint8Array(p.payload.bufferData.buffer);
// let res = "";
// for (let i = 0; i < buf.length; ++i)
// res += String.fromCharCode(buf[i]);
// b.writeSerial(`{"t":${p.time},"s":${p.serial},"b":"${res}"}\r\n`)
default:
// unknown type
break;
}
readRawPacket();
}
}