- swap printf out for String + loop
- swap printf out for String + loop

possan/arduino-BLEPeripheral,femtoduino/arduino-BLEPeripheral,pi19404/arduino-BLEPeripheral,sandeepmistry/arduino-BLEPeripheral,pi19404/arduino-BLEPeripheral,possan/arduino-BLEPeripheral,sandeepmistry/arduino-BLEPeripheral,sandeepmistry/arduino-BLEPeripheral,femtoduino/arduino-BLEPeripheral