Datasheet

// Configure and Start BLE Uart Service

// Firmata use several small write(1) --> buffering TXD is required to run smoothly

// Enable buffering TXD

bleuart.begin();

bleuart.bufferTXD(true);

Firmata.setFirmwareVersion(FIRMATA_FIRMWARE_MAJOR_VERSION, FIRMATA_FIRMWARE_MINOR_VERSION);

Firmata.attach(ANALOG_MESSAGE, analogWriteCallback);

Firmata.attach(DIGITAL_MESSAGE, digitalWriteCallback);

Firmata.attach(REPORT_ANALOG, reportAnalogCallback);

Firmata.attach(REPORT_DIGITAL, reportDigitalCallback);

Firmata.attach(SET_PIN_MODE, setPinModeCallback);

Firmata.attach(SET_DIGITAL_PIN_VALUE, setPinValueCallback);

Firmata.attach(START_SYSEX, sysexCallback);

Firmata.attach(SYSTEM_RESET, systemResetCallback);

// use bleuart as transportation layer

Firmata.begin(bleuart);

// to use a port other than Serial, such as Serial1 on an Arduino Leonardo or Mega,

// Call begin(baud) on the alternate serial port and pass it to Firmata to begin like this:

// Serial1.begin(57600);

// Firmata.begin(Serial1);

// However do not do this if you are using SERIAL_MESSAGE

//Firmata.begin(57600);

//while (!Serial) {

// ; // wait for serial port to connect. Needed for ATmega32u4-based boards and Arduino 101

//}

systemResetCallback(); // reset to default config

// Set up and start advertising

startAdv();

}

void startAdv(void)

{

// Advertising packet

Bluefruit.Advertising.addFlags(BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE);

Bluefruit.Advertising.addTxPower();

// Include bleuart 128-bit uuid

Bluefruit.Advertising.addService(bleuart);

// Secondary Scan Response packet (optional)

// Since there is no room for 'Name' in Advertising packet

Bluefruit.ScanResponse.addName();

/* Start Advertising

* - Enable auto advertising if disconnected

* - Interval: fast mode = 20 ms, slow mode = 152.5 ms

* - Timeout for fast mode is 30 seconds

* - Start(timeout) with timeout = 0 will advertise forever (until connected)

* For recommended advertising interval

* https://developer.apple.com/library/content/qa/qa1931/_index.html

Bluefruit.Advertising.restartOnDisconnect(true);