The recently developed Leonardo simulates the mouse and keyboard functions, using the Leonardo+Arduino JoyStick
Shield game joystick expansion board to realize the mouse and keyboard functions. There are video demonstrations, gift,
ARDUINO mouse and keyboard function original code.
Add the RF interface of nRF24L01 Add a Bluetooth module interface to facilitate Bluetooth wireless serial communication. Add I2C communication interface to facilitate the connection of I2C devicesAt the same time, JoyStick Shield has a PS2 cross rocker with buttons, 4 round buttons and 2 small buttons. Provides
input extensions for joysticks and buttons for Arduino. The onboard switch can switch between 3.3V and 5V, and this
module can be used for other 3.3V microcontroller platforms, such as STM32