this post was submitted on 18 Feb 2024
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You could ditch the solenoid and use a ATMega32u4 that can act as a HID device to send a keypress signal.
I'm mildly surprised OP's laptop keeps the bluetooth radio powered up while asleep, but I would be a lot more surprised to find one that doesn't work with USB HID.
I was a little surprised as well, but I think it's because the keyboard / mouse I use (and the ESP32) all use Bluetooth LE specifically.
I looked at USB solutions first actually, but then decided to try ESP Home solution since I was already familiar with the system.