Re: Remote pump control ideas.
instead of the optocoupler you could use a darlington driver like a ULN2803
https://www.ti.com/product/ULN2803A
these have been used in gambling machines for a couple of decades to link the computer i/o to things like stepper motors and relays.
instead of the optocoupler you could use a darlington driver like a ULN2803
https://www.ti.com/product/ULN2803A
these have been used in gambling machines for a couple of decades to link the computer i/o to things like stepper motors and relays.
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