New Radio API (#287)
* Adding radio API for receiving a packet * More new radio API changes * renaming some properties * Redoing radio packet parsing and updating new callback api
This commit is contained in:
Richard Knoll
Peli de Halleux
parent
3ccc8b7db3
commit
79c89b832a
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@ -3,6 +3,26 @@
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using namespace pxt;
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#define MAX_FIELD_NAME_LENGTH 12
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#define MAX_PAYLOAD_LENGTH 20
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#define PACKET_PREFIX_LENGTH 9
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#define VALUE_PACKET_NAME_LEN_OFFSET 13
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// Packet Spec:
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// | 0 | 1 ... 4 | 5 ... 8 | 9 ... 28
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// ----------------------------------------------------------------
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// | packet type | system time | serial number | payload
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//
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// Serial number defaults to 0 unless enabled by user
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// payload: number (9 ... 12)
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#define PACKET_TYPE_NUMBER 0
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// payload: number (9 ... 12), name length (13), name (14 ... 26)
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#define PACKET_TYPE_VALUE 1
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// payload: string length (9), string (10 ... 28)
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#define PACKET_TYPE_STRING 2
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//% color=270 weight=34
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namespace radio {
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@ -15,6 +35,12 @@ namespace radio {
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PacketBuffer packet;
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uint8_t type;
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uint32_t time;
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uint32_t serial;
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int value;
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StringData* msg;
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int radioEnable() {
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int r = uBit.radio.enable();
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if (r != MICROBIT_OK) {
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@ -38,6 +64,105 @@ namespace radio {
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registerWithDal(MES_BROADCAST_GENERAL_ID, message, f);
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}
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void setPacketPrefix(uint8_t* buf, int type) {
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// prefix: type (0), time (1..4), serial (5..8)
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uint32_t t = system_timer_current_time();
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uint32_t sn = transmitSerialNumber ? microbit_serial_number() : 0;
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buf[0] = (uint8_t) type;
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memcpy(buf + 1, &t, 4);
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memcpy(buf + 5, &sn, 4);
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}
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uint8_t copyStringValue(uint8_t* buf, StringData* data, uint8_t maxLength) {
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ManagedString s(data);
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uint8_t len = min(maxLength, s.length());
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// One byte for length of the string
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buf[0] = len;
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if (len > 0) {
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memcpy(buf + 1, s.toCharArray(), len);
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}
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return len + 1;
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}
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StringData* getStringValue(uint8_t* buf, uint8_t maxLength) {
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// First byte is the string length
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uint8_t len = min(maxLength, buf[0]);
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if (len) {
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char name[maxLength + 1];
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memcpy(name, buf + 1, len);
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name[len] = 0;
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return ManagedString(name).leakData();
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}
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return ManagedString().leakData();
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}
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/**
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* Takes a packet from the micro:bit radio queue.
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* @param writeToSerial if true, write the received packet to serial without updating the global packet;
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if false, update the global packet instead
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*/
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void receivePacket(bool writeToSerial) {
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PacketBuffer p = uBit.radio.datagram.recv();
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uint8_t* buf = p.getBytes();
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uint8_t tp;
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int t;
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int s;
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int v;
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StringData* m;
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memcpy(&tp, buf, 1);
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memcpy(&t, buf + 1, 4);
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memcpy(&s, buf + 5, 4);
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if (tp == PACKET_TYPE_STRING) {
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v = 0;
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m = getStringValue(buf + PACKET_PREFIX_LENGTH, MAX_PAYLOAD_LENGTH - 1);
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}
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else {
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memcpy(&v, buf + 9, 4);
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if (tp == PACKET_TYPE_VALUE) {
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m = getStringValue(buf + VALUE_PACKET_NAME_LEN_OFFSET, MAX_FIELD_NAME_LENGTH);
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}
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else {
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m = ManagedString().leakData();
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}
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}
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if (!writeToSerial) {
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// Refresh global packet
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packet = p;
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type = tp;
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time = t;
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serial = s;
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value = v;
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msg = m;
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}
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else {
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// Convert the packet to JSON and send over serial
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uBit.serial.send("{");
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uBit.serial.send("\"t\":");
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uBit.serial.send(t);
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uBit.serial.send(",\"s\":");
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uBit.serial.send(s);
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if (tp == PACKET_TYPE_STRING || tp == PACKET_TYPE_VALUE) {
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uBit.serial.send(",\"n\":\"");
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uBit.serial.send(m);
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uBit.serial.send("\"");
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}
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if (tp == PACKET_TYPE_NUMBER || tp == PACKET_TYPE_VALUE) {
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uBit.serial.send(",\"v\":");
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uBit.serial.send(v);
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}
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uBit.serial.send("}\r\n");
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}
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}
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/**
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* Broadcasts a number over radio to any connected micro:bit in the group.
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*/
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@ -46,10 +171,14 @@ namespace radio {
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//% blockId=radio_datagram_send block="radio send number %value" blockGap=8
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void sendNumber(int value) {
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if (radioEnable() != MICROBIT_OK) return;
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uint32_t t = system_timer_current_time();
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uint32_t sn = transmitSerialNumber ? microbit_serial_number() : 0;
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uint32_t buf[] = { (uint32_t)value, t, sn };
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uBit.radio.datagram.send((uint8_t*)buf, 3*sizeof(uint32_t));
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uint8_t length = PACKET_PREFIX_LENGTH + sizeof(uint32_t);
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uint8_t buf[length];
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memset(buf, 0, length);
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setPacketPrefix(buf, PACKET_TYPE_NUMBER);
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memcpy(buf + PACKET_PREFIX_LENGTH, &value, 4);
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uBit.radio.datagram.send(buf, length);
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}
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/**
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@ -65,24 +194,20 @@ namespace radio {
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if (radioEnable() != MICROBIT_OK) return;
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ManagedString n(name);
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uint32_t t = system_timer_current_time();
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uint32_t sn = transmitSerialNumber ? microbit_serial_number() : 0;
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uint8_t buf[32];
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uint32_t* buf32 = (uint32_t*)buf;
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memset(buf, 0, 32);
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buf32[0] = value; // 4 bytes: value
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buf32[1] = t; // 4 bytes: running time
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buf32[2] = sn; // 4 bytes: serial number
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uint8_t len = min(MAX_FIELD_NAME_LENGTH, n.length()); // 1 byte: string length
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if (len > 0) {
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buf[12] = len; //
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memcpy(buf + 13, n.toCharArray(), len); // 13-25: field name
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}
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uBit.radio.datagram.send(buf, 13 + len);
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setPacketPrefix(buf, PACKET_TYPE_VALUE);
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memcpy(buf + PACKET_PREFIX_LENGTH, &value, 4);
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int stringLen = copyStringValue(buf + VALUE_PACKET_NAME_LEN_OFFSET, name, MAX_FIELD_NAME_LENGTH);
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uBit.radio.datagram.send(buf, VALUE_PACKET_NAME_LEN_OFFSET + stringLen);
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}
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/**
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* Broadcasts a number over radio to any connected micro:bit in the group.
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* Broadcasts a string along with the device serial number
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* and running time to any connected micro:bit in the group.
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*/
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//% help=radio/send-string
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//% weight=58
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@ -90,16 +215,18 @@ namespace radio {
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void sendString(StringData* msg) {
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if (radioEnable() != MICROBIT_OK) return;
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ManagedString s(msg);
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if (s.length() > MICROBIT_RADIO_MAX_PACKET_SIZE)
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s = s.substring(0, MICROBIT_RADIO_MAX_PACKET_SIZE);
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uint8_t buf[32];
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memset(buf, 0, 32);
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uBit.radio.datagram.send(s);
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setPacketPrefix(buf, PACKET_TYPE_STRING);
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int stringLen = copyStringValue(buf + PACKET_PREFIX_LENGTH, msg, MAX_PAYLOAD_LENGTH - 1);
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uBit.radio.datagram.send(buf, PACKET_PREFIX_LENGTH + stringLen);
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}
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/**
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* Reads a value sent with `stream value` and writes it
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* to the serial stream as JSON
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* Reads the next packet from the radio queue and and writes it to serial
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* as JSON.
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*/
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//% help=radio/write-value-to-serial
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//% weight=3
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@ -107,63 +234,22 @@ namespace radio {
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//% advanced=true
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void writeValueToSerial() {
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if (radioEnable() != MICROBIT_OK) return;
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PacketBuffer p = uBit.radio.datagram.recv();
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int length = p.length();
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uint8_t* bytes = p.getBytes();
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int value;
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uBit.serial.send("{");
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if (length >= 4) {
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memcpy(&value, bytes, 4);
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uBit.serial.send("\"v\":"); uBit.serial.send(value);
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if(length >= 8) {
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memcpy(&value, bytes + 4, 4);
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uBit.serial.send(",\"t\":"); uBit.serial.send(value);
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if (length >= 12) {
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memcpy(&value, bytes + 8, 4);
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uBit.serial.send(",\"s\":"); uBit.serial.send(value);
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if (length >= 13) {
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char name[MAX_FIELD_NAME_LENGTH+1];
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uint8_t len = min(MAX_FIELD_NAME_LENGTH, bytes[12]);
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memcpy(name, bytes + 13, len);
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name[len] = 0;
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uBit.serial.send(",\"n\":\""); uBit.serial.send(name); uBit.serial.send("\"");
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}
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}
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}
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}
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uBit.serial.send("}\r\n");
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}
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/**
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* Reads a number at a given index, between ``0`` and ``3``, from the packet received by ``receive number``. Not supported in simulator.
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* @param index index of the number to read from 0 to 3. 1 eg
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*/
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//% help=radio/received-number-at
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//% weight=45 debug=true
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int receivedNumberAt(int index) {
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if (radioEnable() != MICROBIT_OK) return 0;
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if (0 <= index && index < packet.length() / 4) {
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// packet.getBytes() is not aligned
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int r;
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memcpy(&r, packet.getBytes() + index * 4, 4);
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return r;
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}
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return 0;
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receivePacket(true);
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}
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/**
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* Reads the next packet as a number from the radio queue.
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* Reads the next packet from the radio queue and returns the packet's number
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* payload or 0 if the packet did not contain a number.
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*/
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//% help=radio/receive-number
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//% weight=46
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//% blockId=radio_datagram_receive block="radio receive number" blockGap=8
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//% advanced=true
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int receiveNumber()
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{
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if (radioEnable() != MICROBIT_OK) return 0;
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packet = uBit.radio.datagram.recv();
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return receivedNumberAt(0);
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receivePacket(false);
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return value;
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}
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/**
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@ -172,28 +258,32 @@ namespace radio {
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//% help=radio/on-data-received
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//% weight=50
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//% blockId=radio_datagram_received_event block="radio on data received" blockGap=8
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//% advanced=true
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void onDataReceived(Action body) {
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if (radioEnable() != MICROBIT_OK) return;
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registerWithDal(MICROBIT_ID_RADIO, MICROBIT_RADIO_EVT_DATAGRAM, body);
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// make the the receive buffer has a free spot
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// make sure the receive buffer has a free spot
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receiveNumber();
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}
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/**
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* Reads the next packet as a string and returns it.
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*/
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* Reads the next packet from the radio queue and returns the packet's string
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* payload or the empty string if the packet did not contain a string.
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*/
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//% blockId=radio_datagram_receive_string block="radio receive string" blockGap=8
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//% weight=44
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//% help=radio/receive-string
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//% advanced=true
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StringData* receiveString() {
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if (radioEnable() != MICROBIT_OK) return ManagedString().leakData();
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packet = uBit.radio.datagram.recv();
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return ManagedString(packet).leakData();
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receivePacket(false);
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return msg;
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}
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/**
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* Gets the received signal strength indicator (RSSI) from the packet received by ``receive number``. Not supported in simulator.
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* Gets the received signal strength indicator (RSSI) from the last packet taken
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* from the radio queue (via ``receiveNumber``, ``receiveString``, etc). Not supported in simulator.
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* namespace=radio
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*/
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//% help=radio/received-signal-strength
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@ -242,4 +332,48 @@ namespace radio {
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if (radioEnable() != MICROBIT_OK) return;
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transmitSerialNumber = transmit;
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}
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/**
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* Returns the number payload from the last packet taken from the radio queue
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* (via ``receiveNumber``, ``receiveString``, etc) or 0 if that packet did not
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* contain a number.
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*/
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//% help=radio/received-number
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int receivedNumber() {
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if (radioEnable() != MICROBIT_OK) return 0;
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return value;
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}
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/**
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* Returns the serial number of the sender micro:bit from the last packet taken
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* from the radio queue (via ``receiveNumber``, ``receiveString``, etc) or 0 if
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* that packet did not send a serial number.
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*/
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//% help=radio/received-serial
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uint32_t receivedSerial() {
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if (radioEnable() != MICROBIT_OK) return 0;
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return serial;
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}
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/**
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* Returns the string payload from the last packet taken from the radio queue
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* (via ``receiveNumber``, ``receiveString``, etc) or the empty string if that
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* packet did not contain a string.
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*/
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//% help=radio/received-string
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StringData* receivedString() {
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if (radioEnable() != MICROBIT_OK) return ManagedString().leakData();
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return msg;
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}
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/**
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* Returns the system time of the sender micro:bit at the moment when it sent the
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* last packet taken from the radio queue (via ``receiveNumber``,
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* ``receiveString``, etc).
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*/
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//% help=radio/received-time
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uint32_t receivedTime() {
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if (radioEnable() != MICROBIT_OK) return 0;
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return time;
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}
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}
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@ -3,4 +3,49 @@
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*/
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//% color=#E3008C weight=34
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namespace radio {
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export class Packet {
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/**
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* The number payload if a number was sent in this packet (via ``sendNumber()`` or ``sendValue()``)
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* or 0 if this packet did not contain a number.
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*/
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public receivedNumber: number;
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/**
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* The string payload if a string was sent in this packet (via ``sendString()`` or ``sendValue()``)
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* or the empty string if this packet did not contain a string.
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*/
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public text: string;
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/**
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* The system time of the sender of the packet at the time the packet was sent.
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*/
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public time: number;
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/**
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* The serial number of the sender of the packet or 0 if the sender did not sent their serial number.
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*/
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public serial: number;
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/**
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* The received signal strength indicator (RSSI) of the packet.
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*/
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public signal: number;
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}
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/**
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* Registers code to run when the radio receives a packet. Also takes the
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* received packet from the radio queue.
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*/
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//% mutate=true
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//% mutateText=Packet
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//% mutateDefaults="receivedNumber;text,receivedNumber;text"
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//% blockId=radio_on_packet block="on radio received" blockGap=8
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export function onDataPacketReceived(cb: (packet: Packet) => void) {
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onDataReceived(() => {
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receiveNumber();
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const packet = new Packet();
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packet.receivedNumber = receivedNumber();
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packet.time = receivedTime();
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packet.serial = receivedSerial();
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packet.text = receivedString();
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packet.signal = receivedSignalStrength();
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cb(packet)
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});
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}
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}
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@ -25,7 +25,8 @@ declare namespace radio {
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function sendValue(name: string, value: number): void;
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/**
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* Broadcasts a number over radio to any connected micro:bit in the group.
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* Broadcasts a string along with the device serial number
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* and running time to any connected micro:bit in the group.
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*/
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//% help=radio/send-string
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//% weight=58
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@ -33,8 +34,8 @@ declare namespace radio {
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function sendString(msg: string): void;
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/**
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* Reads a value sent with `stream value` and writes it
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* to the serial stream as JSON
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* Reads the next packet from the radio queue and and writes it to serial
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* as JSON.
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*/
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//% help=radio/write-value-to-serial
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//% weight=3
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@ -43,19 +44,13 @@ declare namespace radio {
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function writeValueToSerial(): void;
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/**
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* Reads a number at a given index, between ``0`` and ``3``, from the packet received by ``receive number``. Not supported in simulator.
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* @param index index of the number to read from 0 to 3. 1 eg
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*/
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//% help=radio/received-number-at
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//% weight=45 debug=true shim=radio::receivedNumberAt
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function receivedNumberAt(index: number): number;
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/**
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* Reads the next packet as a number from the radio queue.
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* 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 shim=radio::receiveNumber
|
||||
//% blockId=radio_datagram_receive block="radio receive number" blockGap=8
|
||||
//% advanced=true shim=radio::receiveNumber
|
||||
function receiveNumber(): number;
|
||||
|
||||
/**
|
||||
|
|
@ -63,19 +58,23 @@ declare namespace radio {
|
|||
*/
|
||||
//% help=radio/on-data-received
|
||||
//% weight=50
|
||||
//% blockId=radio_datagram_received_event block="radio on data received" blockGap=8 shim=radio::onDataReceived
|
||||
//% blockId=radio_datagram_received_event block="radio on data received" blockGap=8
|
||||
//% advanced=true shim=radio::onDataReceived
|
||||
function onDataReceived(body: () => void): void;
|
||||
|
||||
/**
|
||||
* Reads the next packet as a string and returns it.
|
||||
* 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 shim=radio::receiveString
|
||||
//% help=radio/receive-string
|
||||
//% advanced=true shim=radio::receiveString
|
||||
function receiveString(): string;
|
||||
|
||||
/**
|
||||
* Gets the received signal strength indicator (RSSI) from the packet received by ``receive number``. Not supported in simulator.
|
||||
* Gets the received signal strength indicator (RSSI) from the last packet taken
|
||||
* from the radio queue (via ``receiveNumber``, ``receiveString``, etc). Not supported in simulator.
|
||||
* namespace=radio
|
||||
*/
|
||||
//% help=radio/received-signal-strength
|
||||
|
|
@ -112,6 +111,38 @@ declare namespace radio {
|
|||
//% 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(): number;
|
||||
|
||||
/**
|
||||
* 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 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(): number;
|
||||
}
|
||||
|
||||
// Auto-generated. Do not edit. Really.
|
||||
|
|
|
|||
|
|
@ -1,15 +1,14 @@
|
|||
namespace pxsim {
|
||||
export interface PacketBuffer {
|
||||
data: number[] | string;
|
||||
rssi?: number;
|
||||
payload: SimulatorRadioPacketPayload;
|
||||
rssi: number;
|
||||
serial: number;
|
||||
time: number;
|
||||
}
|
||||
|
||||
export class RadioDatagram {
|
||||
datagram: PacketBuffer[] = [];
|
||||
lastReceived: PacketBuffer = {
|
||||
data: [0, 0, 0, 0],
|
||||
rssi: -1
|
||||
};
|
||||
lastReceived: PacketBuffer = RadioDatagram.defaultPacket();
|
||||
|
||||
constructor(private runtime: Runtime) {
|
||||
}
|
||||
|
|
@ -21,35 +20,43 @@ namespace pxsim {
|
|||
(<DalBoard>runtime.board).bus.queue(DAL.MICROBIT_ID_RADIO, DAL.MICROBIT_RADIO_EVT_DATAGRAM);
|
||||
}
|
||||
|
||||
send(buffer: number[] | string) {
|
||||
if (buffer instanceof String) buffer = buffer.slice(0, 32);
|
||||
else buffer = buffer.slice(0, 8);
|
||||
|
||||
send(payload: SimulatorRadioPacketPayload) {
|
||||
Runtime.postMessage(<SimulatorRadioPacketMessage>{
|
||||
type: "radiopacket",
|
||||
data: buffer
|
||||
rssi: 0, // Not yet supported
|
||||
serial: board().radioState.bus.transmitSerialNumber ? board().radioState.bus.serial : 0,
|
||||
time: 0, // Not yet supported
|
||||
payload
|
||||
})
|
||||
}
|
||||
|
||||
recv(): PacketBuffer {
|
||||
let r = this.datagram.shift();
|
||||
if (!r) r = {
|
||||
data: [0, 0, 0, 0],
|
||||
rssi: -1
|
||||
};
|
||||
if (!r) r = RadioDatagram.defaultPacket();
|
||||
return this.lastReceived = r;
|
||||
}
|
||||
|
||||
private static defaultPacket(): PacketBuffer {
|
||||
return {
|
||||
rssi: -1,
|
||||
serial: 0,
|
||||
time: 0,
|
||||
payload: { type: -1 }
|
||||
};
|
||||
}
|
||||
}
|
||||
|
||||
export class RadioBus {
|
||||
// uint8_t radioDefaultGroup = MICROBIT_RADIO_DEFAULT_GROUP;
|
||||
groupId = 0; // todo
|
||||
power = 0;
|
||||
serial = 0;
|
||||
transmitSerialNumber = false;
|
||||
datagram: RadioDatagram;
|
||||
|
||||
constructor(private runtime: Runtime) {
|
||||
this.datagram = new RadioDatagram(runtime);
|
||||
this.serial = Math.floor(Math.random() * Math.pow(2, 32)) - Math.pow(2, 31); // 32 bit signed integer
|
||||
}
|
||||
|
||||
setGroup(id: number) {
|
||||
|
|
@ -83,12 +90,18 @@ namespace pxsim {
|
|||
}
|
||||
|
||||
public recievePacket(packet: SimulatorRadioPacketMessage) {
|
||||
this.bus.datagram.queue({ data: packet.data, rssi: packet.rssi || 0 })
|
||||
this.bus.datagram.queue(packet)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
namespace pxsim.radio {
|
||||
enum PacketPayloadType {
|
||||
NUMBER = 0,
|
||||
VALUE = 1,
|
||||
STRING = 2
|
||||
}
|
||||
|
||||
export function broadcastMessage(msg: number): void {
|
||||
board().radioState.bus.broadcast(msg);
|
||||
}
|
||||
|
|
@ -110,41 +123,57 @@ namespace pxsim.radio {
|
|||
}
|
||||
|
||||
export function sendNumber(value: number): void {
|
||||
board().radioState.bus.datagram.send([value]);
|
||||
board().radioState.bus.datagram.send({
|
||||
type: PacketPayloadType.NUMBER,
|
||||
numberData: value
|
||||
});
|
||||
}
|
||||
|
||||
export function sendString(msg: string): void {
|
||||
board().radioState.bus.datagram.send(msg);
|
||||
msg = msg.substr(0, 19);
|
||||
board().radioState.bus.datagram.send({
|
||||
type: PacketPayloadType.STRING,
|
||||
stringData: msg
|
||||
});
|
||||
}
|
||||
|
||||
export function writeValueToSerial(): void {
|
||||
let b = board();
|
||||
let v = b.radioState.bus.datagram.recv().data[0];
|
||||
b.writeSerial(`{v:${v}}`);
|
||||
let p = b.radioState.bus.datagram.recv();
|
||||
|
||||
switch(p.payload.type) {
|
||||
case PacketPayloadType.NUMBER:
|
||||
b.writeSerial(`{"t":${p.time},"s":${p.serial},"v":${p.payload.numberData}}`)
|
||||
break;
|
||||
case PacketPayloadType.VALUE:
|
||||
b.writeSerial(`{"t":${p.time},"s":${p.serial},"n":"${p.payload.stringData}","v":${p.payload.numberData}}`)
|
||||
break;
|
||||
case PacketPayloadType.STRING:
|
||||
b.writeSerial(`{"t":${p.time},"s":${p.serial},"n":"${p.payload.stringData}"}`)
|
||||
break;
|
||||
default:
|
||||
}
|
||||
}
|
||||
|
||||
export function sendValue(name: string, value: number) {
|
||||
board().radioState.bus.datagram.send([value]);
|
||||
name = name.substr(0, 12);
|
||||
const msg: number[] = [];
|
||||
msg.push()
|
||||
board().radioState.bus.datagram.send({
|
||||
type: PacketPayloadType.VALUE,
|
||||
stringData: name,
|
||||
numberData: value
|
||||
});
|
||||
}
|
||||
|
||||
export function receiveNumber(): number {
|
||||
let buffer = board().radioState.bus.datagram.recv().data;
|
||||
if (buffer instanceof Array) return buffer[0];
|
||||
|
||||
return 0;
|
||||
const packet = board().radioState.bus.datagram.recv();
|
||||
return receivedNumber();
|
||||
}
|
||||
|
||||
export function receiveString(): string {
|
||||
let buffer = board().radioState.bus.datagram.recv().data;
|
||||
if (typeof buffer === "string") return <string>buffer;
|
||||
return "";
|
||||
}
|
||||
|
||||
export function receivedNumberAt(index: number): number {
|
||||
let buffer = board().radioState.bus.datagram.recv().data;
|
||||
if (buffer instanceof Array) return buffer[index] || 0;
|
||||
|
||||
return 0;
|
||||
const packet = board().radioState.bus.datagram.recv();
|
||||
return receivedString();
|
||||
}
|
||||
|
||||
export function receivedSignalStrength(): number {
|
||||
|
|
@ -155,4 +184,20 @@ namespace pxsim.radio {
|
|||
pxtcore.registerWithDal(DAL.MICROBIT_ID_RADIO, DAL.MICROBIT_RADIO_EVT_DATAGRAM, handler);
|
||||
radio.receiveNumber();
|
||||
}
|
||||
|
||||
export function receivedNumber(): number {
|
||||
return board().radioState.bus.datagram.lastReceived.payload.numberData || 0;
|
||||
}
|
||||
|
||||
export function receivedSerial(): number {
|
||||
return board().radioState.bus.datagram.lastReceived.serial;
|
||||
}
|
||||
|
||||
export function receivedString(): string {
|
||||
return board().radioState.bus.datagram.lastReceived.payload.stringData || "";
|
||||
}
|
||||
|
||||
export function receivedTime(): number {
|
||||
return board().radioState.bus.datagram.lastReceived.time;
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue