- correct pins, remove ATmega32U4 specific wait for serial
- correct pins, remove ATmega32U4 specific wait for serial

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