BLE byte characteristic with nRF52

pablogonzaleziei · April 7, 2022, 10:10am

Hi all,
I’m working with the nRF52-DK (nRF52832) and the library BLEPeripheral.h for sending data from sensors to an app. I have to send this data as Byte packages. The problem is that I can’t define a characteristic as “BLEByteCharacteristic”, as this type is not defined in the library BLETypedCharacteristic.h. I’ve tried to define it unsuccessfully.
If I try to use another type like BLEIntCharacteristic I can only send 4 bytes. is there anyway I can do this?

maxgerhardt · April 7, 2022, 11:19am

Please ask the library author these library-specific questions → Issues · sandeepmistry/arduino-BLEPeripheral · GitHub

Otherwise

github.com

sandeepmistry/arduino-BLEPeripheral/blob/161a4163f565be3cd5b62bbc59f0c2b522d82b02/keywords.txt#L26-L26


      
          BLEFixedLengthCharacteristic	KEYWORD1

github.com

sandeepmistry/arduino-BLEPeripheral/blob/161a4163f565be3cd5b62bbc59f0c2b522d82b02/examples/ir_bridge/ir_bridge.ino#L15-L34


      
          
          
struct IRValue {
            char type;
            char bits;
            unsigned int address;
            unsigned long value;
          };
          
          
// create IR send and recv instance, see pinouts above
          IRsend                           irSend                      = IRsend(/*IR_SEND_PIN*/);
          IRrecv                           irRecv                      = IRrecv(IR_RECV_PIN);
          IRValue                          irValue;
          
          
//custom boards may override default pin definitions with BLEPeripheral(PIN_REQ, PIN_RDY, PIN_RST)
          BLEPeripheral                    blePeripheral                            = BLEPeripheral();
          
          
// create service and characteristics
          BLEService                       irService                   = BLEService("00004952-0000-bbbb-0123-456789abcdef");
          BLEFixedLengthCharacteristic     irOutputCharacteristic      = BLEFixedLengthCharacteristic("00004953-0000-bbbb-0123-456789abcdef", BLEWrite, sizeof(irValue));
          BLEFixedLengthCharacteristic     irInputCharacteristic       = BLEFixedLengthCharacteristic("00004954-0000-bbbb-0123-456789abcdef", BLENotify, sizeof(irValue));