gabeNC
Member
I'm troubleshooting this board for a friend. The board seems to work except for the relay, doesn't trip when the timer is up. It's super cheap but we are looking at it from a educational perspective. My question is... where is the voltage regulator for the mcu/low voltage side of the circuit? According to the datasheet, that MCU is rated for a max of 7.5 volts. There is no transformer, walwart or otherwise.
thanks.
thanks.
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