New Home › Forum › Software Development › Estlcam with experimental Arduino Mega2560 / Ramps 1.4 support › Reply To: Estlcam with experimental Arduino Mega2560 / Ramps 1.4 support
Each USB device has its own power management, they are not really gated by the global power settings except by sleep. Open Device Manager in Windows, expand both USB and Ports, then plug your board in. Watch to see what gets added to do list. Next right click on each of the devices, bring up Proprties; Power Management, and make sure ‘Allow the computer to turn off this device to save power’ is not checked.