Hi! I'm using the connections from the arduino shiftout example, but I've got a problem sometimes when the arduino starts all outputs go high. I'm controlling 10 tip122 with a solenoid 12v based lock so this is a big problem as it could open all the locks, I can't seem to find any way to start all …

74HC595N control solenoid - arduino startup problem

DrDiettrich May 24, 2018, 4:54pm 10

Gnd is -, not +. Chose whatever voltage disables the outputs.

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