Overview
Relay control and universal input hardware for Raspberry Pi for mission-critical home and industrial automation. The Smart Relays with Universal Inputs HAT combines four HALL-effect current-sensing relay outputs with four universal inputs that read either 10K thermistor temperature or dry-contact/opto-isolated digital signals, in
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Excellent HAT!
Plenty of IO, easy to setup!
F
Fisher · July 15, 2026
Where is the 24V power connection?
Really great product! I’m still trying to find in the documentation where the 24V power connection comes in. I believe it’s top right two connections, but the documentation doesn’t note that, and the writing on the board in that corner is hidden. I was going to call sequent, but I hope someone can confirm that for me.
M
Mike · December 21, 2025
Smart Relays with Universal Inputs 8-Layer Stackable HAT for Raspberry Pi