pc starter

[system]

Hello

i have a few question regarding a project i am trying. i am fairly new to the whole microcontroller an electronics thing but i want to try it.

i want to start a pc trough arduino and test if its on or not.
so i thought power button for starting/shutdown and case led for testing.

and i came up with the attached schematic.

the idea is. short the power switch pins on the motherboard with a transistor.
an let the led control a transistor to measure if the pc is on.

but i'm not really sure if this would work as expected. Especially the led/transistor part.

thanks in advance for any input on this

[robtillaart]

Have you ever lgoogled for "wake on lan"? if your network card supports taht it might be the easiest way todo.

I would propose to use a small relay iso a transistor (decoupling)

[system]

thanks

yes i know about wake on lan. the motherboard supports it, and i tried to get it to work but even with correct bios settings an linux tool the pc wont boot

on the other hand, a project like this betters my understanding about electronics, so i'm choosing this route to learn something along the way.

did you mean using a relay instead of the transistor connected to the led or for both ?

[system]

Changed the whole thing to use only optocouplers and include the reset switch too.

is this layout correct ? (without the part numbers, chose those at random)

should this work as expected ?
do i need resistors on some places ?

thanks in advance