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*********************************************************************/

/* This sketch show how to use BLEClientService and BLEClientCharacteristic

* to implement a custom client that is used to talk with Gatt server on

* peripheral.

* Note: you will need another feather52 running peripheral/custom_HRM sketch

* to test with.

#include <bluefruit.h>

/* HRM Service Definitions

* Heart Rate Monitor Service: 0x180D

* Heart Rate Measurement Char: 0x2A37 (Mandatory)

* Body Sensor Location Char: 0x2A38 (Optional)

BLEClientService hrms(UUID16_SVC_HEART_RATE);

BLEClientCharacteristic hrmc(UUID16_CHR_HEART_RATE_MEASUREMENT);

BLEClientCharacteristic bslc(UUID16_CHR_BODY_SENSOR_LOCATION);

void setup()

{

Serial.begin(115200);

Serial.println("Bluefruit52 Central Custom HRM Example");

Serial.println("--------------------------------------\n");

// Initialize Bluefruit with maximum connections as Peripheral = 0, Central = 1

// SRAM usage required by SoftDevice will increase dramatically with number of connections

Bluefruit.begin(0, 1);

Bluefruit.setName("Bluefruit52 Central");

// Initialize HRM client

hrms.begin();

// Initialize client characteristics of HRM.

// Note: Client Char will be added to the last service that is begin()ed.

bslc.begin();

// set up callback for receiving measurement

hrmc.setNotifyCallback(hrm_notify_callback);

hrmc.begin();

// Increase Blink rate to different from PrPh advertising mode

Bluefruit.setConnLedInterval(250);

// Callbacks for Central

Bluefruit.Central.setDisconnectCallback(disconnect_callback);

Bluefruit.Central.setConnectCallback(connect_callback);