By using particular IO scanning detection, the 5 IO Keypad takes only 5 IOs to control all of the onboard push buttons and joystick. 10 push buttons, 1 joystick (five positions), 5-bit interface.
Features: PL2303TA onboard (the latest device, compatible with PL2303HXA). Supports windows XP/7/8/8.1/10/... 3 power mode : 5V output, 3.3V output, or powered by target board (3.3V-5V). 3 LEDs: TXD LED, RXD LED, POWER LED.