I'm thinkin what you did in your project was pretty close to what I am proposing to do with a ZigBee 4ch relay assuming I can affect the switch of polarities without any timing, inrush, or other transitional issues.
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12v Power and DC Motor Valve Connections
DC Motor positive wire to 2-Channel Relay switch 1 COM input
DC Motor negative wire to 2-Channel Relay switch 2 COM input
3pin wiring 12v battery positive wire to Relay switch 1 NO & Relay switch 2 NO
3pin wiring 12v battery negative wire to Relay switch 1 NC & Relay switch 2 NC
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Can you comment based on your experience? Thanks.
