Keeping my dedicated cell phone charged

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Originally Posted by Sonicxtacy02

what ground? there are 4 wires in the usb 5+ data+ data- and com.

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+5V DC
TX
RX
Ground

com(mon) = ground

ok then yes the ground cable is in tact. It was initially cut but has been soldered back together like all the other wires cept the 5+. Now does anyone know the answer to the question i last posted. What can i add to that 5v line to protect voltage from traveling into the computer

You can't because what is protecting the computer would also stop what it is detecting. What you need to do it figure out what it is detecting and emulate it.

Quote:

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Originally Posted by ElKeeed

You can't because what is protecting the computer would also stop what it is detecting. What you need to do it figure out what it is detecting and emulate it.

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Hmm. I thought there would be something i could add that would allow the voltage to only travel one way but i guess not. I think what i need to do is connect the car adapter as i intended originally and see if it works. Right now without the 5v connected to the phone windows says the phone is a unknown device. I'll try this with my old computer as to not fry my carputer.

it works... i have my cell phone charging when my radio is on. I just spliced the regulated line to my usb 5V and no overvoltage issues on the port. WOO HOOO.