patching up bluetooth uart

libs/microbit-bluetooth/bluetooth.cpp

@@ -1,7 +1,6 @@
 #include "pxt.h"
 #include "MESEvents.h"
 #include "MicroBitUARTService.h"
-MicroBitUARTService *uart;
 
 using namespace pxt;
 
@@ -26,6 +25,8 @@ enum Delimiters {
  */
 //% color=#0082FB weight=20
 namespace bluetooth {
+    MicroBitUARTService *uart = NULL;
+
     /**
     *  Starts the Bluetooth IO pin service.
     */
@@ -83,10 +84,10 @@ namespace bluetooth {
     /**
     *  Starts the Bluetooth UART service
     */
-    //% help=bluetooth/start-uart-service
+    // help=bluetooth/start-uart-service
-    //% blockId=bluetooth_start_uart_service block="bluetooth uart service" blockGap=8
+    // blockId=bluetooth_start_uart_service block="bluetooth uart service" blockGap=8
-
     void startUartService() {
+        if (uart) return;
         // 61 octet buffer size is 3 x (MTU - 3) + 1
         // MTU on nRF51822 is 23 octets. 3 are used by Attribute Protocol header data leaving 20 octets for payload
         // So we allow a RX buffer that can contain 3 x max length messages plus one octet for a terminator character
@@ -99,24 +100,35 @@ namespace bluetooth {
     //% help=bluetooth/uart-write
     //% blockId=bluetooth_uart_write block="bluetooth uart write %data" blockGap=8
     void uartWrite(StringData *data) {
-            uart->send(ManagedString(data));
+        startUartService();
+    	uart->send(ManagedString(data));
     }    
 
     /**
     *  Reads from the Bluetooth UART service buffer, returning its contents when the specified delimiter character is encountered.
     */
     //% help=bluetooth/uart-read
-    //% blockId=bluetooth_uart_read block="bluetooth uart read %del" blockGap=8
+    //% blockId=bluetooth_uart_read block="bluetooth uart read %del=bluetooth_uart_delimiter_conv" blockGap=8
     StringData* uartRead(StringData *del) {
+        startUartService();
         return uart->readUntil(ManagedString(del)).leakData();
     }    
 
+    /**
+    * Returns the delimiter corresponding string
+    */
+    //% blockId="bluetooth_uart_delimiter_conv" block="%del"
+    //% weight=1
+    StringData* delimiters(Delimiters del) {  
+        ManagedString c("\n\n,$:.#"[max(0, min(6, (int)del))]);
+        return c.leakData();
+    }
     /**
      * Register code to run when the micro:bit is connected to over Bluetooth
      * @param body Code to run when a Bluetooth connection is established
      */
-    //% help=bluetooth/on-bluetooth-connected
+    //% help=bluetooth/on-bluetooth-connected weight=20
-    //% blockId=bluetooth_on_connected block="on bluetooth connected"
+    //% blockId=bluetooth_on_connected block="on bluetooth connected" blockGap=8
     void onBluetoothConnected(Action body) {
         registerWithDal(MICROBIT_ID_BLE, MICROBIT_BLE_EVT_CONNECTED, body);
     }    
@@ -125,7 +137,7 @@ namespace bluetooth {
      * Register code to run when a bluetooth connection to the micro:bit is lost
      * @param body Code to run when a Bluetooth connection is lost
      */
-    //% help=bluetooth/on-bluetooth-disconnected
+    //% help=bluetooth/on-bluetooth-disconnected weight=19
     //% blockId=bluetooth_on_disconnected block="on bluetooth disconnected"
     void onBluetoothDisconnected(Action body) {
         registerWithDal(MICROBIT_ID_BLE, MICROBIT_BLE_EVT_DISCONNECTED, body);

libs/microbit-bluetooth/bluetooth.ts

@@ -1,12 +0,0 @@
-//% blockId="delimiter_conv" block="%del"
-export function delimiters(del : Delimiters) : string {
-    switch(del) {
-        case Delimiters.NewLine: return "\n";
-        case Delimiters.Comma: return ",";
-        case Delimiters.Dollar: return "$";
-        case Delimiters.Colon: return ":";
-        case Delimiters.Fullstop: return ".";
-        case Delimiters.Hash: return "#";
-        default: return "\n";
-    }
-}

libs/microbit-bluetooth/shims.d.ts

@@ -49,13 +49,6 @@ declare namespace bluetooth {
     //% blockId=bluetooth_start_button_service block="bluetooth button service" blockGap=8 shim=bluetooth::startButtonService
     function startButtonService(): void;
 
-    /**
-     *  Starts the Bluetooth UART service
-     */
-    //% help=bluetooth/start-uart-service
-    //% blockId=bluetooth_start_uart_service block="bluetooth uart service" blockGap=8 shim=bluetooth::startUartService
-    function startUartService(): void;
-
     /**
      *  Writes to the Bluetooth UART service buffer. From there the data is transmitted over Bluetooth to a connected device.
      */
@@ -67,22 +60,29 @@ declare namespace bluetooth {
      *  Reads from the Bluetooth UART service buffer, returning its contents when the specified delimiter character is encountered.
      */
     //% help=bluetooth/uart-read
-    //% blockId=bluetooth_uart_read block="bluetooth uart read %del" blockGap=8 shim=bluetooth::uartRead
+    //% blockId=bluetooth_uart_read block="bluetooth uart read %del=bluetooth_uart_delimiter_conv" blockGap=8 shim=bluetooth::uartRead
     function uartRead(del: string): string;
 
+    /**
+     * Returns the delimiter corresponding string
+     */
+    //% blockId="bluetooth_uart_delimiter_conv" block="%del"
+    //% weight=1 shim=bluetooth::delimiters
+    function delimiters(del: Delimiters): string;
+
     /**
      * Register code to run when the micro:bit is connected to over Bluetooth
      * @param body Code to run when a Bluetooth connection is established
      */
-    //% help=bluetooth/on-bluetooth-connected
+    //% help=bluetooth/on-bluetooth-connected weight=20
-    //% blockId=bluetooth_on_connected block="on bluetooth connected" shim=bluetooth::onBluetoothConnected
+    //% blockId=bluetooth_on_connected block="on bluetooth connected" blockGap=8 shim=bluetooth::onBluetoothConnected
     function onBluetoothConnected(body: () => void): void;
 
     /**
      * Register code to run when a bluetooth connection to the micro:bit is lost
      * @param body Code to run when a Bluetooth connection is lost
      */
-    //% help=bluetooth/on-bluetooth-disconnected
+    //% help=bluetooth/on-bluetooth-disconnected weight=19
     //% blockId=bluetooth_on_disconnected block="on bluetooth disconnected" shim=bluetooth::onBluetoothDisconnected
     function onBluetoothDisconnected(body: () => void): void;
 }

package.json

@@ -29,6 +29,6 @@
     "typescript": "^1.8.7"
   },
   "dependencies": {
-    "pxt-core": "0.2.179"
+    "pxt-core": "*"
   }
 }