Raspberry Pi Zero Relay HAT


Raspberry Pi Zero Relay HAT


SKU: RAS-109 - Mfg Part Number: RAS-109


With the addition of WiFi and Bluetooth to the Raspberry Pi Zero W, it is now finding itself in many more IoT applications. This 2 Channel Relay HAT makes driving higher current and higher voltage devices as easy as possible! This premium Relay HAT matches the Raspberry Pi Zero form factor and is compatible with all versions of the Pi Zero. Each 10A relay has the Input, Normally Open, and Normally Closed contact broken out to a nice 5mm pitch screw terminal. The board uses high quality North American sourced parts, a locally produced circuit board, and simple logic level inputs.

This HAT is compatible with the Raspberry Pi Zero / Zero 1.3 / Zero W and uses GPIO pins 4 and 17 (Pins 7 & 11) on the GPIO header. Each relay driver is connected to the GPIO through a solder jumper and can be alternatively connected through the 2 pin 0.100″ header if a custom configuration is required.

This board does not ship with a header – we recommend the GPIO Header for Raspberry Pi HAT. Standoffs, like those included in our HAT hardware kit , are ideal for ensuring everything stays in place!

Please Note: While this board is capable of switching higher voltages, please exercise caution. If you are inexperienced or unsure about how to use this product safely we recommend looking at the IoT Power Relay, which has all of its high voltage circuitry fully enclosed.


  • Fits directly on the Pi's 40 pin GPIO header
  • Uses GPIO 4 and GPIO 17
  • Switch up to 10A per channel!
  • Compatible with all models of the Raspberry Pi Zero


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In stock (can be backordered)

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Additional information

Weight 45 g


  1. :


    I would like to know if you are providing a programming library (a python library for example) to facilitate the interaction with the HAT.


    • :


      We don’t intend to release a library for the HAT as it is just two digital pins – pull each pin high and it will trigger the relay.

  2. (verified owner):

    Soldering a stacking header onto one these boards is almost impossible with the relays in place. You might want to consider selling these with the relays not yet attached, so that they can be soldered on after the headers.

    • :

      Thanks for the feedback – definitely an option we could offer!

  3. :

    What is the voltage rating of the relays? And is the 10A rating AC or DC?

    (I’m suprised you don’t have this as part of the spec).

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