How to automatically turn on a pc at a scheduled time?

[Wictorian]

I know you can do it in BIOS but can I do it with code [prefably python] so that IO can have more control on it?

 

[Kilrah]

Not on the machine itself obviously but you can enable Wake on LAN and program another machine to send the WoL packet.

[mariushm]

Wake on LAN is a legitimate solution. 

 

Another option would be to enable wake on key press or mouse click and emulate a keyboard / mouse with an arduino or pi  connected in the back of the pc.

if the PC is turned off, you could turn it on by simply shorting the two pins of the power on switch in the front panel header ... can be done using a mechanical relay (if full isolation is required or you want basic components), or with a transistor / mosfet ... 

You can configure in bios to have the power button act as sleep / stand-by  instead of power off and then shorting the two pins are basically sleep / wake up  

 

There are also programmable mains sockets , some also accept remote commands through bluetooth or regular wireless ... so in theory such outlet could be turned on when desired and the pc could be set from bios to automatically turn on as soon as power is detected.

 

 

[WereCatf]

46 minutes ago, Wictorian said:

I know you can do it in BIOS but can I do it with code [prefably python] so that IO can have more control on it?

Windows or Linux? Under Linux it's pretty simple, but I'm not sure Windows support RTC-wakeups.

[Unimportant]

https://docs.microsoft.com/en-us/windows/win32/power/system-wake-up-events

[Wictorian]

On 2/25/2021 at 11:52 AM, mariushm said:

Wake on LAN is a legitimate solution. 

 

Another option would be to enable wake on key press or mouse click and emulate a keyboard / mouse with an arduino or pi  connected in the back of the pc.

if the PC is turned off, you could turn it on by simply shorting the two pins of the power on switch in the front panel header ... can be done using a mechanical relay (if full isolation is required or you want basic components), or with a transistor / mosfet ... 

You can configure in bios to have the power button act as sleep / stand-by  instead of power off and then shorting the two pins are basically sleep / wake up  

 

There are also programmable mains sockets , some also accept remote commands through bluetooth or regular wireless ... so in theory such outlet could be turned on when desired and the pc could be set from bios to automatically turn on as soon as power is detected.

 

 

@Kilrah Can I do it through my phone?

[Wictorian]

On 2/25/2021 at 12:05 PM, WereCatf said:

Windows or Linux? Under Linux it's pretty simple, but I'm not sure Windows support RTC-wakeups.

Windows but I guess it supports

[Kilrah]

1 hour ago, Wictorian said:

@Kilrah Can I do it through my phone?

There are android apps to send WoL packets, so I guess yes.

[Wictorian]

1 minute ago, Kilrah said:

Yes.

How?