Features: - It can better work with Nextion, only suitable for Nextion enhanced HMI display- The board has 6 buttons, which includes esc, enter, left, right, up, and down keys- Also, indicating buzzer and LEDs are included- Type: HMI optional I/O expansion board- Board size: 65mm x 45mm/2.56 inch x 1.77 inch Please Note: This expansion board ca...