Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
I have essentially two controllers, an RPi, another 5V-based controller (a Hunter Hydrawise irrigation controller), and a flow sensor that I want to connect to both controllers. For this I thought I'd use an opto-isolator/coupler.
I want to connect the flowmeter to the 5V controller using the...
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