Project by James46717; Simple Relay Timer

I’ve just shared a new project: “Simple Relay Timer”

This project started because I needed to replace a water tap timer that had seen better days. The aim was to use a Raspberry Pi Pico and a couple of PiicoDev boards to do what the water timer did…

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What water valve did you use?

Device is relay contact output, and switched 24VAC plug pack connected to 240VAC mains.


  • Working pressure 20-1400 kPa
  • Internal filter to reduce risk of valve blockages
  • Australian made
  • 24 Volt AC, 50 Hz


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