I built a budget Open evse charger with just the LED/ temp sensor rather than the LCD display. I was planning to use my TTL usb adapter to change the settings. I hooked it up according to the diagram and followed the instruction outlined here. However the only response I could get from the controller was the "$NK" response. No matter what command i sent ($GV, $SE 1, $GP, etc) it returned "$NK". It tried switching the TX and RX wires around but that resulted in no response from the controller. I also tried a couple different terminal consoles thinking that perhaps it was an issue with Putty but I got the same result. Any ideas?
Once they have, you'll be able to view a graph of their reputation gained over time.
Here's a preview of what the graph will look like:
No reputation gained yet.