17 May
2022
17 May
'22
2:54 a.m.
When I wired the 12v to the second relay, something shorted in an unsourced burst of smoke. I shouldn't have wired it while powered. Then I could have tested the wiring. I'm not sure why this happened, given the signal for the second relay is not grounded. I wonder if I simply knocked something I hadn't insulated yet.