TX power level can now be set either initially using the configuration system eg. bleGamepadConfig.setTXPowerLevel(3);
Defaults to 9 if not set
Range: -12 to 9 dBm and the only valid values are: -12, -9, -6, -3, 0, 3, 6 and 9
TX power can also be set at any time using bleGamepad.setTXPower(int8_t)
You can also get the current TX power level by using bleGamepad.getTXPower(int8_t)
See CharacteristicsConfiguration.ino example for more info