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PiRelay, a Raspberry Pi relay shield with a mobile app that costs just US$17.06 - NotebookCheck.net News
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Relay expansion board for Raspberry Pi includes 4.3-inch touchscreen display (Crowdfunding) - CNX Software
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PiRelay - Raspberry Pi GPIO Control | PiRelay - The easy way to Switch Relays using the GPIO Pins on a Raspbery Pi. Control anything from 1 to 100 Relays connected to between 1 and 10 different RaspberryPi's
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PiRelay Power Relay Module for Raspberry Pi, 4 Channel Relay Shield for Raspberry Pi, Relay HAT Expansion Relay Board for Raspberry Pi 4B/3B+/3B/2B/B+/A+ : Amazon.co.uk: Computers & Accessories
![PiRelay, a Raspberry Pi relay shield with a mobile app that costs just US$17.06 - NotebookCheck.net News PiRelay, a Raspberry Pi relay shield with a mobile app that costs just US$17.06 - NotebookCheck.net News](https://www.notebookcheck.net/fileadmin/Notebooks/News/_nc3/PiRelay_a_720_660_1800x1800.png)
PiRelay, a Raspberry Pi relay shield with a mobile app that costs just US$17.06 - NotebookCheck.net News
![PiRelay, a Raspberry Pi relay shield with a mobile app that costs just US$17.06 - NotebookCheck.net News PiRelay, a Raspberry Pi relay shield with a mobile app that costs just US$17.06 - NotebookCheck.net News](https://www.notebookcheck.net/fileadmin/Notebooks/News/_nc3/PiRelay_e_720_660_1800x1800.png)