I have the wired tomtom gps receiver and i need to find out what each of the 4 wires in the RJ11 plug do - i know that 2 are for power and 2 are for data, but which ones do what?

if anyone has the pin-out i would be happy if you could let me know what they are

 

i know what you're trying to do

i tried the same and ended up frying my GPS unit

 

I've found out the pinouts now and made up a lil conversion table, its quite easy

now watch the fucker fry

 

wtf are you doing?

 

make SURE it's the correct voltage before you do anything. i fried mine by running 12v thru a usb charger thingie (5v)

 

i'll be using the +5v from the internal PC supply jim

 

am i right in thinking that the RX on the RJ11 plug must goto the TX on the RS232 and vice-versa?

 

just double check the output from the RJ11 socket 1st (i'm pretty sure its 5v tho)

 

it is 5v thats needed Jim - i've found the pinouts for the RJ11

 

spill the beans!!

 

spill the beans? all i want to do is plug my tomtom gps receiver into a pc

 

eh? i thought you were trying to use your tomtom car kit to charge your aftermarket USB gps receiver

you trying to convert the RJ11 to USB and plug it into a USB port? that won't work on a wired tomtom i'm afraid the tomtom receiver doesnt contain the usb device information. you'd have to wire it into a serial port yet still find a way of providing it with a good +5v supply

 

Jim - i AM trying to get the tomtom receiver into the RS232 Serial port

and getting a +5v supply to it isn't a problem