- max size is also 18 for RFduino
- max size is also 18 for RFduino

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