Datasheet

// Setup LED pins and reset blinky counter

pinMode(STATUS_LED, OUTPUT);

blinkyms = millis();

// Initialise the Bluefruit module

Serial.println("Initialise the Bluefruit nRF52 module");

Bluefruit.begin();

// Set the advertised device name (keep it short!)

Serial.println("Setting Device Name to 'Feather52 HRM'");

Bluefruit.setName("Feather52 HRM");

// Set the connect/disconnect callback handlers

Bluefruit.setConnectCallback(connect_callback);

Bluefruit.setDisconnectCallback(disconnect_callback);

// Configure and Start the Device Information Service

Serial.println("Configuring the Device Information Service");

bledis.setManufacturer("Adafruit Industries");

bledis.setModel("Bluefruit Feather52");

bledis.begin();

// Start the BLE Battery Service and set it to 100%

Serial.println("Configuring the Battery Service");

blebas.begin();

blebas.update(100);

// Setup the Heart Rate Monitor service using

// BLEService and BLECharacteristic classes

Serial.println("Configuring the Heart Rate Monitor Service");

setupHRM();

// Setup the advertising packet(s)

Serial.println("Setting up the advertising payload(s)");

setupAdv();

// Start Advertising

Serial.println("Ready Player One!!!");

Serial.println("\nAdvertising");

Bluefruit.Advertising.start();

}

void setupAdv(void)

{

Bluefruit.Advertising.addFlags(BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE);

Bluefruit.Advertising.addTxPower();

// Include HRM Service UUID

Bluefruit.Advertising.addService(hrms);

// There isn't enough room in the advertising packet for the

// name so we'll place it on the secondary Scan Response packet

Bluefruit.ScanResponse.addName();

}

void setupHRM(void)

{

// Configure the Heart Rate Monitor service

// See: https://www.bluetooth.com/specifications/gatt/viewer?attributeXmlFile=org.bluetooth.service.heart_rate.xml