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Why a Diode is Used with a Relay ? Why a Reverse Polarity Diode is Mandatory with a Relay? - YouTube
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Where would I add a diode on this relay to mitigate fly back EMF? This project is an automatic plant waterer using a capacitor soil moisture sensor along with a simple small
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5 Pin Relay With Diode Wiring Diagram ... | Light switch wiring, Electrical wiring diagram, Electrical circuit diagram
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