ArduinoBLE - readValue()

Read the current value of the descriptor. If the descriptor is on a remote device, a read request will be sent.

Syntax

bleDescriptor.readValue(buffer, length)
bleDescriptor.readValue(value)

Parameters

buffer: byte array to read value into length: size of buffer argument in bytes value: variable to read value into (by reference)

Returns

Number of bytes read

Example


  byte value = 0;

  /get the value, descriptor is 1 byte so use byte value    
  descriptor.readValue(value);