5v power when Alpha is running

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Joined: Wed May 29, 2019 12:00 am

Wed May 29, 2019 6:26 pm

Is there a way to get 5v when the Alpha is turned on (not just has power)? I need to turn on a 5v relay to power other devices, but only want those devices to have power when the Alpha is on. All of the pins I tested have 5v when the Arduino is on, and the Arduino turns on when there is power.

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Joined: Sat Oct 13, 2018 9:16 pm

Wed May 29, 2019 10:03 pm

There is no such 5V-POWER_switched_if_Intel_CPU_is_up lead.
You can try using the S5 state (it's just a status signal, when Intel CPU is up) to control (use a transistor to drive) a relay to switch-ON/switch-OFF the 5V power to your accesorries.
See S5 state write-up:

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