Only have 3 relays and one NTC sensor connected. I added a 20kohm pull down resistor on the NTC, but the board already had a 5k on board, so in hindsight I'll use that.
The relays are controlled with a high side PNP transistor ( A8A ) which in-turn is switched with a NPN (A6A), this is nice an easy to intercept.
It was easy enough to track the circuits and probe for places to tack a connection to.
The relays are controlled with a high side PNP transistor ( A8A ) which in-turn is switched with a NPN (A6A), this is nice an easy to intercept.
It was easy enough to track the circuits and probe for places to tack a connection to.
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