Datasheet

We are then ready to forward data from central to peripheral and vice versa using callbacks:

Peripheral Role

The first thing to do for the peripheral part of our code is to setup the connect callback, which fires when a connection

is established/disconnected with the central. Alternatively you could poll the connection status with connected(), but

callbacks helps to simplify the code significantly:

Central Role

Next we setup the Central mode connect callback, which fires when a connection is established/disconnected with a

peripheral device:

void cent_bleuart_rx_callback(BLEClientUart& cent_uart)

{

char str[20+1] = { 0 };

cent_uart.read(str, 20);

Serial.print("[Cent] RX: ");

Serial.println(str);

if ( bleuart.notifyEnabled() )

{

// Forward data from our peripheral to Mobile

bleuart.print( str );

}else

{

// response with no prph message

clientUart.println("[Cent] Peripheral role not connected");

}

void prph_bleuart_rx_callback(void)

{

// Forward data from Mobile to our peripheral

char str[20+1] = { 0 };

bleuart.read(str, 20);

Serial.print("[Prph] RX: ");

Serial.println(str);

if ( clientUart.discovered() )

{

clientUart.print(str);

}else

{

bleuart.println("[Prph] Central role not connected");

}

// Callbacks for Peripheral

Bluefruit.setConnectCallback(prph_connect_callback);

Bluefruit.setDisconnectCallback(prph_disconnect_callback);