Sure it works also without display. The display is just a listener of the serial line, so it does not matter whether it is present or not. If you connect a serial terminal, you nevertheless see the "display" messages. You could turn the message off by commenting the content of hardwareint...

Hi @uhi22 - I am now trying to move further by taking your ccs32 codebase and bring it up on an ESP32 (WT32-ETH01) board similar to what you've detailed on github. I won't be using a display (is this possible to use without display and if so any specific config changes I would need in that case?) Al...

I've used the QCA7005 as well as QCA47420 (TPlink hack) in EVSE mode with 2 cars Chevy Bolt and Kia EV6 and has worked with issues using pyPLC package from @uhi22

Not sure what the ARXXX is Atheros? if so, may be a pre-cursor to QCA as Atheros is now part of Qualcomm...

This is very interesting. I've a friend who has an old Nissan leaf and was worried in future as chargers move away from Chademo to NACS/CCS in US - this type of adapter come very handy. Would be interested to understand the conversion from CCS/greenPHY/IP to CAN/SWCAN based comm. I understand @Johu ...

So we are talking about EVSE mode, and the possibility to control the power supply. Well, this use case is at the moment not implemented at all. The existing hardwareInterface.py is handling only the PEV side. My proposal would be: 1. Create a new module hardwareInterfaceEvse.py, to avoid confusion...

Hi @uhi22 had a quick question, on pyPLC side when using it in EVSE mode if I enable the serial port config in the pyPlc.ini # Added by celeron55 # The serial port and baud rate used for communication. Used # for serial devices like Dieter, OLED-Display and # celeron55's measuring and switching devi...

I was able to finally get a charge (fake) session going with the Chevy Bolt using the pyPLC EVSESim (did some changes to messages and attributes to match up real charger traces. Also the EV expects to see voltage and current at the terminals once the preCharge is complete. So I put a small DC voltag...

ListenMode in pyPLC. Does it work with TPlink modems - based on the release updates it seems it doesn't as the modem is dropping pkts not addressed to it? but works with Devolo modem? If so can you provide me with details on what h/w to use for this (I found this h/w on ebay - is this the one or dif...

I updated the code in Openv2gx related to the encoding of CableCheckRes to match the real charger and the the Chevy Bolt was able to transition to the PreChargeReq/PreChargeRes state. I see the pyPLC calculating the EV Present Voltage based on the target sent in the Req and the logic seems to be wor...

No, nothing to change on pyPLC side, the encode function creates the stream and nothing overwrites it. The code looks ok for me. Did you compile it before use? And did you compile it in the path where pyPLC searches it? (Sorry, stupid questions, but no better idea at the moment ;-) ) I found the is...

Hi all - I tried the above suggestions - updated my params etc but no luck yet :-) So for now I am focusing on one car Chevy Bolt (where I am still stuck at the CableCheckResp and the PEV stops sending anything and then times out). As I was going over the req/resp messages between I see in the Cable...

For the Tesla issue- make sure your modem is ready to start SLAC as soon as you switch to 5% duty cycle. Teslas (and a few others) will almost immediately try to start communicating after 5% starts. Stay in 100% duty for a few seconds beforehand if needed to verify the modem is ready before switchi...

I did a similar experiment on Tesla model Y, BYD-ATTO3, MG-EP they seem to measurement actual voltage at the charging port and send SessionStopReq, if the require pre-charge voltage of the chare port does not meet what have been requested for pre-charge. (In the experiment, I set the EVSEPresentVol...

I understood that the Kia/Hyundai 800V cars have to modes: 1. A "legacy mode", in which they are able to charge on 400V chargers, and use an internal step-up-converter to boost the 400 (or up to 500V) of a "old" charger to the internal battery charger. In this mode, I guess pull...

Hyundai/Kia HV vehicles run at 450V when dealing with “low voltage” chargers (typically 500v max). If charge parameter discovery response EVSE max voltage is below 450v, you’ll very likely fail out. Newer model S and X are ~450v as well, so your likely faulting out for the same reason for both vehi...

uhi22 wrote: ↑Fri Sep 22, 2023 4:10 pm BTW: Which plugin do you use in Wireshark to decode the EXI?

https://github.com/ChargePoint/wireshark-v2g

The values of the ChargeParameterResponse are not configurable at the moment. They are hardcoded here: https://github.com/uhi22/OpenV2Gx/blob/d0e22816ace99ff77b72bcb45273580ea65211a9/src/test/main_commandlineinterface.c#L1304 So you could try to change some of these values, re-compile the OpenV2Gx,...

Thank you for your detailed explanation and spending time to go over the messages. I think you're correct on the kia side, I noticed some of those fields in the req/resp and the resp had values which may need to be tweaked to something higher. Also I'll update my v2g code. How do I update the code t...

Hi @uhi22 - have some more updates from integrations with Chevy Bolt 2018, Kia EV6 2023, and Telsa Model S (with NACS/CCS adapter). 1. Chevy Bolt - transaction stuck at CableCheckReq/CableCheckResp and the EV doesn't send anything back and the transaction times out... and the EVSE goes back to liste...

Interesting, could you record the Ethernet traffic using wireshark or tcpdump? Sure, I'll do another run later today/tomorrow and get that data out. Have also asked some friends if I could use their Tesla Model S and Kia EV6 to try this same experiment. Will send out the logs/results in next couple...

Hi I have finally got to a point where I was able to get the 5% PWM signal and rest of the wallbox related ckt to connect to the Bolt CCS1 charger - after that I manually started the pyPLC in EVSE mode and was able to see most of the messages between the Bolt <-> EVSE/pyPLC. The point where the mess...

One more data point - I was able to use the pyPLC code with PEV/EVSE based on QCA7005 - from Aliexpress. next step is to make sure the CP has the correct voltage/duty cycle etc using open EVSE/instructible and then final showdown with an EV. So far the messages etc seem to be matching to the ISO 151...

I am continuing to use the pyPlc to make both the sides comm EVSE with PEV (with 2 RPi having the ini config and 2 mod TP Link modems as mentioned above). Before I connect to a real EV (my goal is to mainly act as an EVSE using the EVSEmode doc as my blueprint) - I was checking some of the params on...

Moved one step further today. Hacked 2 TP-Link modems from the kit and removed all the A/C xformers and related electronics working using 12V DC PS for now. Used the approach described in this thread to connect 2 cables back2back from the PEV <-> EVSE. after some initial issues was finally able to g...

FYI if the tcp connection is broken (closed or reset) at any point during a session, the session will end. You can try to reconnect, but should start at the beginning. Stations that support also CHAdeMO are more likely to go down to ~150V. I wouldn’t trust anything below 100V despite CHAdeMO “requi...