I need to turn on my computer every day 06:00 o'clock how to cording that?
I need answer without using relay module...
Finally I need to know how to turn on computer using arduino...
I need to turn on my computer every day 06:00 o'clock how to cording that?
That depends on exactly how you expect the Arduino to know that it is 6:00 AM.
I need answer without using relay module...
Why?
Finally I need to know how to turn on computer using arduino...
You program the Arduino to whisper sweet nothings into the computer's ear. Oh, wait, it's completely turned off, so that would be a waste of effort.
The ATX power supply, which is the most common in desktop PCs, has a 24 pin connector with a bunch of pretty coloured wires coming out of it. One of these (and only one) is green (pin 16).
When the computer is turned off, there's a vampire voltage trickling through the green wire (5V). To switch everything on this needs to be drawn to ground. This is typically done with the power switch (imagine). As long as your grounds are connected, an Arduino with RTC can keep this HIGH until 0600 and then switch LOW. Voila! Computer on!
Switching off this way is not recommended.
As long as your grounds are connected, an Arduino with RTC can keep this HIGH until 0600 and then switch LOW. Voila! Computer on!
At some undefined time, the Arduino will have to set the pin back HIGH. Then what, does that cause the PC to shutdown? Even if there are still processes running?
How "on" do you need the computer to be ?
Powered up waiting for a username/password what ?
What OS is the computer running ?
How will the Arduino be powered ?
PaulS:
At some undefined time, the Arduino will have to set the pin back HIGH. Then what, does that cause the PC to shutdown? Even if there are still processes running?
I think the power switch on a PC is momentary contact any way. The PC doesn't shut off when you let go of the switch.
PaulS:
At some undefined time, the Arduino will have to set the pin back HIGH. Then what, does that cause the PC to shutdown? Even if there are still processes running?
Once the power supply is switched on, internal circuitry will keep it LOW. Switch the Arduino pin from output to input after you've triggered the PC to turn on and then monitor the level or simply wait til the next 0600. You don't need to break the original circuit, just provide a path to ground at the appropriate time and then back out.