Waveshare Serial Expansion HAT for Raspberry Pi Zero/Zero W/Zero WH/2B/3B/3B+Onboard SC16IS752 2-ch UART 8 GPIOs I2C Interface 3.3V Stackable

Overview There is only 1-ch UART port on the original Raspberry Pi, once it is used for terminal debugging, no more other serial device is allowed. What a poor situation. Now you have 2-ch extra UART, plus 8 programmable GPIOs, just bring this Serial Expansion HAT. Features

Raspberry Pi connectivity, compatible with Raspberry Pi Zero/Zero W/Zero WH/2B/3B/3B+

Onboard SC16IS752, expands 2-ch UART and 8 programmable GPIO through I2C, no extra pin required

It is stackable up to 16 this modules by setting the address jumper, that means up to 32-ch UART

Onboard multi LEDs for indicating the UART working status

Reserved I2C control pins, allows to work with other control boards

Comes with development resources and manual (examples in C and python)

Specifications Operating voltage: 3.3V Expansion chip: SC16IS752 Control interface: I2C Dimension: 65mm x 30mm Mounting hole size: 3.0mm PACKAGE CONTENT Note: Raspberry Pi in the photos is NOT included. Serial Expansion HAT x1 RPi screws pack (2pcs) x1 100% original, support technical service, please contact us!