Finished the initial layout and the final dimensions actually shrunk. It occurred to me that I don't need a dip switch I can use the bottom connector for that, with a jumper, for stuff like tournament locking and loading firmware. Maybe a jumper on the USB header or something.
I still have to give it the once twice three times over before its anything me a rough first revision, plus double and triple check the BoM resistor values, placement, and all.
Two things that concern me, first is I am not adding a shunt diode to this design on the power circuitry. Normally a shottkey diode is placed in parallel with the load to absorb the back emf when an inductive load is de-energized, but the. MOSFET I am using indicates it has that diode built in. I had a big honkin diode on the original morlock and the mini, but it takes up valuable real estate where I can least afford it, between the fet and the header.
I will build the circuit up and test it with some big solenoids to be sure it can stand up.
Also, the regulator I am speccing can take a maximum of 18 volts, where the older morlock could take up to 30.. That means dual nine volts are out, new they generate more than nine, like up to ten. This means no e mag.. I have looked for another component but there just isn't one.
How necessary is it that I support up to 20 volts? Emags even exist anymore?
-Curt