microbit: BLE service bugfixes

Updates to BLE interface to match specification following testing by Bluetooth SIG.

Accelerometer Period: now supports READ and WRITE
Magnetometer Period: now supports READ and WRITE
LED Matrix State: now supports READ and WRITE.

UUIDs of Temperature Service characteristic corrected.

source/ble-services/MicroBitAccelerometerService.cpp

@@ -22,7 +22,7 @@ MicroBitAccelerometerService::MicroBitAccelerometerService(BLEDevice &_ble) :
 
     GattCharacteristic  accelerometerPeriodCharacteristic(MicroBitAccelerometerServicePeriodUUID, (uint8_t *)&accelerometerPeriodCharacteristicBuffer, 0, 
     sizeof(accelerometerPeriodCharacteristicBuffer), 
-    GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE_WITHOUT_RESPONSE);
+    GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE);
 
     // Initialise our characteristic values.
     accelerometerDataCharacteristicBuffer[0] = 0;

source/ble-services/MicroBitLEDService.cpp

@@ -16,7 +16,7 @@
 MicroBitLEDService::MicroBitLEDService(BLEDevice &_ble) : 
         ble(_ble), 
         matrixCharacteristic(MicroBitLEDServiceMatrixUUID, (uint8_t *)&matrixCharacteristicBuffer, 0, sizeof(matrixCharacteristicBuffer), 
-    GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE_WITHOUT_RESPONSE | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ)
+    GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ)
 {
     // Create the data structures that represent each of our characteristics in Soft Device.
     GattCharacteristic  textCharacteristic(MicroBitLEDServiceTextUUID, (uint8_t *)textCharacteristicBuffer, 0, MICROBIT_BLE_MAXIMUM_SCROLLTEXT, 

source/ble-services/MicroBitMagnetometerService.cpp

@@ -25,7 +25,7 @@ MicroBitMagnetometerService::MicroBitMagnetometerService(BLEDevice &_ble) :
 
     GattCharacteristic  magnetometerPeriodCharacteristic(MicroBitMagnetometerServicePeriodUUID, (uint8_t *)&magnetometerPeriodCharacteristicBuffer, 0, 
     sizeof(magnetometerPeriodCharacteristicBuffer), 
-    GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE_WITHOUT_RESPONSE);
+    GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_WRITE);
 
     // Initialise our characteristic values.
     magnetometerDataCharacteristicBuffer[0] = 0;

source/ble-services/MicroBitTemperatureService.cpp

@@ -51,7 +51,7 @@ const uint8_t  MicroBitTemperatureServiceUUID[] = {
 };
 
 const uint8_t  MicroBitTemperatureServiceDataUUID[] = {
-    0xe9,0x5d,0x8a,0x38,0x25,0x1d,0x47,0x0a,0xa0,0x62,0xfa,0x19,0x22,0xdf,0xa9,0xa8
+    0xe9,0x5d,0x92,0x50,0x25,0x1d,0x47,0x0a,0xa0,0x62,0xfa,0x19,0x22,0xdf,0xa9,0xa8
 };