Features

• Five momentary push buttons (4 + joystick select button)

• Two-axis thumb joystick

• Add nRF24L01 RF interface

• Add Nokia 5110 LCD interface, so very easy to game development

• Adding a Bluetooth module interface, convenient Bluetooth wireless serial communication

• Add I2C communication interface, easy connectivity to I2C devices

• Onboard selection switches for 3.3V and 5V