"There is optical isolation to protect the raspberry and the simplest way to do that is over a uart, not spi."
it would seem that the opto should be between arduino pins and the 12v mosfets
or are you powering the arduino with 12v.?
i have a few MOC3041's left over that i got for other projects.
i've been going thru my parts bin and the builder bug bit me..
it would seem that the opto should be between arduino pins and the 12v mosfets
or are you powering the arduino with 12v.?
i have a few MOC3041's left over that i got for other projects.
i've been going thru my parts bin and the builder bug bit me..