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Simple PCB to control a 3.3V Solenoid

This project is a small PCB to control a low-power solenoid valve directly from a micro-controller

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We have a need to control simple 3.3V solenoid valves for liquid delivery.  Unfortunately these take ~200mA to trigger, so we can't cause them to open/close directly from digital pins of a microcontroller.  This small PCB was designed to route the 3.3V power line of a microcontroller (this can typically supply ~500mA) to the solenoid, dependent on the triggering of a digital pin.

sch - 23.68 kB - 04/27/2018 at 17:39

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brd - 18.62 kB - 04/27/2018 at 17:39

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