Stackable Serial Expansion HAT [Discontinued]

SBCSKU: 103420
Sale price £15
incl. VAT
excl. VAT

Compatible with:

Awesome Extras

Raspberry PiRaspberry Pi Zero WH (with pre-soldered header)
Sale price £15.40 incl. VAT excl. VAT
The Pi HutRaspberry Pi OS Pre-installed Micro SD Card
Sale priceFrom £9.90 incl. VAT excl. VAT

The Serial Expansion HAT expands the functionality and capabilities of the Raspberry Pi, giving you an I2C interface & 2-channel UART with 8 programmable GPIO Pins.

The HAT includes 8 programmable GPIO pins via I2C in which you can attach more accessories and add-ons, and the board is stackable up to 16 layers, allowing up to 32-channels UART! The onboard LEDs also help you to identify the UART working status.


  • Standard Raspberry Pi 40-pin GPIO header
  • Onboard SC161S752: expands 2-channel UART and 8 programmable GPIO through I2C - no extra pins required
  • Stackable up to 16 modules by setting the address jumper (up to 32-ch UART)
  • Onboard LEDs for indicating the UART working status
  • Reserved 12C control pins: allows the board to work with other control boards
  • GitHub resources



  • Operating voltage: 3.3V
  • Expansion chip: SC161S752
  • Control interlace: 12C
  • Dimensions: 65mm x 30mm

Note: Raspberry Pi not included

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