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  • 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.

identify ball valve position

  1. B

    Last position of a solenoid ball valve

    Hi Objective is light the LED within a 12v momentary switch so that last position of a 240v ball valve can be determined. So the ball valve is 3 wire, two live for open and close and neutral. These wire via a twin relay board controlled by 12v. One relay is used to open and the other to...

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