I'm trying to hook up my OpenEVSE to a Raspberry Pi using this manual. I've bought both a FTDI USB cable and a PL2303HX cable. When I connect the pins as described the EVSE boots and display starts. However, no matter how I try to connect the cables, I do not get any communication going between the raspberry and the EVSE.
When trying to connect using:
screen /dev/ttyUSB0 115200
I get a blank screen, entering $ does not do anything.
- Do I need to enable the RAPI somehow? Or is it enabled by default (FW 3.10.3)?
- Does anybody have experience using PL2303HX or FT232RL?
Thanks for your help!
That was the trick indeed!
So for PL2303HX USB cables, the order is:
4. Green (Txd according to spec)
5. White (Rxd according to spec)
RAPI is enabled by default. You may want to try swapping RX and TX lines.