BobSan
Newbie level 4
Hi everyone,
I need to program a ebike controller and the connection must be made with a USB/TRS cable. I could not find such cable in my city. The only serial port that i could find is a 9 pin RS232 model so i soldered a 3.5mm TRS plug on it with this pinnout :
- Rx : pin n°2 on the RS232, middle ring on the TRS
- Tx : pin n°3 on the RS232, tip of the TRS
- Gnd : pin n°5 on the RS232, sleeve of the TRS
The laptop did recognised the COM port (it shows up on my ebike controller software in the serial port dropdown) but i still have the "Controller is not connected" beside it. I had no information about the chipset used in the RS232 cable so i removed the mold : the chipset is a PL-2303RA (see the PDF attached).
So i first want to solder the wires back on the circuit board but i don't know which wire color goes where, on the usb side have a black, red, white and green wire. I would bet that the letters on the electric circuit stands for the colors? Then i'll be able to plug it back on my laptop to see if i can configure the wire to work with my controller.
Thank you in advance for your help people!
I need to program a ebike controller and the connection must be made with a USB/TRS cable. I could not find such cable in my city. The only serial port that i could find is a 9 pin RS232 model so i soldered a 3.5mm TRS plug on it with this pinnout :
- Rx : pin n°2 on the RS232, middle ring on the TRS
- Tx : pin n°3 on the RS232, tip of the TRS
- Gnd : pin n°5 on the RS232, sleeve of the TRS
The laptop did recognised the COM port (it shows up on my ebike controller software in the serial port dropdown) but i still have the "Controller is not connected" beside it. I had no information about the chipset used in the RS232 cable so i removed the mold : the chipset is a PL-2303RA (see the PDF attached).
So i first want to solder the wires back on the circuit board but i don't know which wire color goes where, on the usb side have a black, red, white and green wire. I would bet that the letters on the electric circuit stands for the colors? Then i'll be able to plug it back on my laptop to see if i can configure the wire to work with my controller.
Thank you in advance for your help people!