Detect sleeping computer

[efc]

I have a RP Pico connected to my Mac using USB and I am able to use CircuitPython's USB HID to send keystrokes to the Mac. However, in my case I want to _avoid_ waking up the computer if it is asleep. Sending a keystroke to the computer wakes it up, which I do not want to do.

Is there any way to detect whether the computer is asleep via the USB connection so that I could avoid sending keystrokes while the computer is asleep?

Alternatively, is there a way to configure USB HID so that the keyboard does not wake the computer from sleep?

[sj_remington]

If the Mac displays something like the "breathing" power LED indicator while in sleep mode, that could be detected by an optical sensor.

[danhalbert]

supervisor.runtime.usb_available should be false when usb is suspended, which is what happens when the computer sleeps. See if that works for you.

https://docs.circuitpython.org/en/lates ... _connected