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Originally Posted by Jay Lundy
[Edit]Also, did you know that you can wire 2 solenoids to each relay? That means 1 double solenoid or 2 single solenoids per relay. Basically the M+ and M- pins on the relays are independent of each other. FWD controls M+ and REV controls M-.
If FWD is high (5V), M+ is high (12V).
If FWD is low (0V), M+ is low (0V).
If REV is high (5V), M- is high (12V).
If REV is low (0V), M- is low (0V).
Just wire all the solenoid grounds to the main battery ground, and all the power wires to a different M+ or M- pin. It helps not to think of them as just FWD and REV but as independent pins, just together on one relay.
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Dumb question... if you wired 2 single solenoids to one spike, you can't actuate both single solenoids at the same time can you? i.e. run the Spike in both FWD and REV at the same time? I just assumed this wasn't possible... I'd be happy to be embarrased and wrong though... that way I can get rid of half my Spikes =)
-Shawn...