Instructables
Picture of Power On Your PC using your Cell Phone
As you all already know, nowadays we can acces our home PC remotely over the Internet. But what we do if we are away from home and our PC is not powered on, and also there is nobody left home to do that for us?
As I consider myself being a geek, I keep my old stuff, and also collect used and partially broken stuff.
Many of us changed often the mobile phone or cell phone... whatever you call it. I have a Nokia 1100 with it's microphone broken. So I tought it can be useful for something in the future.
I used only recovered parts for this project!

P.S. Sorry for poor photo quality... were made using another... mobile phone. :D

Step 1: What you need

1. one old mobile phone with vibrating function - may be broken enough to receive calls.
2. one charging plug (it can be used the phone charger's original one)
3. two terminals miniature sockets and cables with miniature connectors
4. some old computer case front panel cable connectors ( I used Hdd Led, Power Button, Reset Button connectors) and front panel socket like (you can use jumperpins instead)
5. any small old electronic board (PCB) or perforated board (I used an old Philips TV small module PCB)
6. omron 12v miniature relay (with at least one pair of contacts)
7.one BC548 NPN transistor or equivalent
8. one 1N4001 diode
9. one opto-isolator with NPN transistor output. I used EL817 optoisolator from an broken ATX computer supply
10. one 470uF/10v capacitor

Step 2: The circuit

Picture of The circuit
If you use somekind of old PCB, you have to remove all existing parts and connectors. Also you should prepare all parts first, and study the circuit.
 
Remove these adsRemove these ads by Signing Up
peterlonz1 year ago
Good effort but it would be of more general interest if:
1) You showed how a cellphone without a vibrator could be used.
2) You made it a bit clearer how the switched on terminals could be used to switch other devices, maybe a home aircon or heater or driveway lights or gate opener ................etc, possibilities almost endless.
3) Provide warning that an accidentally called "wrong number", or similar could turn your device/PC on without you knowing.
i'm new to this type of project. would u like to help me to make it more effective plzzzzzzzzz.....
my email id is amperenaushad@gmail.com and jahidphy@gmail.com
hope for the quick and positive response...
andre0073 years ago
cool man ...was thinking of this for a long time now..anyone with some electronic knowledge down to component level could make this cool remote switch.
akimbo m4 years ago
Oh wow, nice work. Btw, hope you just realized you have discovered not just how to turn on a PC, but also how some insurgents are setting up their remote IEDs (Improvised Explosive Devices). But of course, many things can have a duel purpose, so great to see a good practice use of such ghetto tech.
spoos4 years ago
does this project work?is it a complete guide?
because i will start tommorow.i am now looking for the parts
geekone (author) 5 years ago
Well, you cannot just hook the phone directly to the pc's power on button, because the button is a switch(On/OFF) and the phone's output is a current (kind of a pulsating DC on around 1,4 volts.) Even If I could try to adapt Wake On Lan, or Wake On Ring from the PC to phone I didn't wanted to let PC in Stand-By, neither to risk my PC's circuitry.
geekone (author) 5 years ago
my mistake, I forgot to post the charger. I'll update it soon.<br/> On short: I've used a 7805 supply with a LED hooked between The Adjust terminal and GND. Thus, I have an output of 5+1,2(voltage led)=6,2V without Load. When I hook the phone for charging, the voltage drops to around 4,9-5 volts.<br/>
Lance Mt.5 years ago
One question, Why with all the effort? Can you not just hook the power on button to the phone? If not.. WHY NOOOT!? I will look more in-depth to this
Actually which parts are for the charger box?
Lance Mt.5 years ago
I liiiiiiiikkkeee. I'm gonna do this seeing how i'm setting up a ftp server as we speak (-)
Cybot Rules5 years ago
Very nicely done.
janet_aj275 years ago
Truly GEEKY. well done my friend. very nice. especially the fact that you used only recovered parts.