From SB-Components Wiki

Pico HAT Expansion

Raspberry Pi Pico HAT Expansion is an input/output expansion board designed for the Raspberry Pi Pico, which provides one set of 2x20 pin headers in the form of a Raspberry Pi Header along with one set of 2 x 20 pin. It means that one can plug any HAT designed for Raspberry Pi with the Raspberry Pi Pico via the Raspberry Pi Pico HAT Expansion that would make the user perform the advanced functions on it.


  • 2x20 pins header
  • Clear and descriptive pin labels
  • Connect any HAT
  • Raspberry Pi Connector for connecting HAT


  • Interface - 2x20 Male Berg Connector
  • Compatibility - Raspberry Pi HAT/ Shield
  • Connectors - Jumper Cable/ Stackable
  • Compatible with Raspberry Pi Pico
  • On-board female Header for Pico
Pico HAT Expansion
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Pico hat exp pinout.jpg


  • Take Raspberry Pi Pico HAT Expansion.
Pico hat exp ins1.png
  • Stack Raspberry Pi Pico on female 40 pins header of Raspberry Pi Pico HAT Expansion board as shown in the picture below.

Pico hat exp ins2.png

  • Stack any 40 pins Raspberry Pi compatible HAT on dedicated standard GPIO header as shown in the picture below.

Pico hat exp ins3.png

Note: Other than Power Pins and special purpose pins, all other GPIO Pins are not exactly the same as the Raspberry Pi. Please check the above Pinout diagram for actual pinout mapping for Raspberry Pi Pico.