I'm replacing the relay logic of an old flipper with arduino uno. My first idea was not to totally replace the logic but just some functions. The relay logic is based on relays (of course) and motor operated cams contacts. In addition there are big solenoids to reset flags and move flipper fingers. …

how to shield arduino uno from external mag fields?

Grumpy_Mike October 2, 2017, 11:10am 6

no diodes nor condenser.

Then you need to fit some.