I did that a few days after I've posted that and with v5.0 I did not get a single timeout since. I'm also using the DC Wallbox exclusively since then.
Screenshot 2025-03-06 at 22.29.30.png


The only limitation left is really the 15Ah discharge limit. The limit is okay on days like today were ...

Hello guys, last time I was testing with n7. It stuck the SDP stage. And I forgot to record the packet with Wireshark. The next time, I try to test with miniEVSE. Somehow, the PWM doesn't work anymore. And the problem would be the inferior quality of LF355N. So I purchased a new one from ...

A wireshark pcap of the failed case should show whether the PEV sends a TCP connect request.


Hello guys, last time I was testing with n7. It stuck the SDP stage. And I forgot to record the packet with Wireshark. The next time, I try to test with miniEVSE. Somehow, the PWM doesn't work anymore ...

Hello guys, yesterday. I perform a drawing power testing on my car(n7) when I plug the evse in with a ccs1 plug. But it end up stuck on sdp2. It seems like when evse sends sdp response back to pev. PEV did not continue to make TCP Negotiation.

When I try other brand's ev truck(not yes release). It ...

Thank you for helping.

BC547 is perfect.
You could check with oscilloscope whether the serial lines of Dieter are both talking and whether the baud rate fits. And check the dieters digital outputs for state C and contactors whether they go to 5V.


Today, I finally let NPN start working. It turns ...

Thanks for reminding me. After looking back at the code. I know that when it detects dieter to switch stateC. It will return self. Outvalue =1. and inside mainfunction_dieter.
# self.ser.write(b'hello world\n')
s = "000" + str(self.outvalue)
self.ser.write(bytes("do"+s+"\n", "utf-8")) # set ...

Hello, I have used the oscilloscope to measure the CP line. It stays at high level 9V and low level of 12v. After several modifications to the Arduino code and fsmPEV code. It still can not switch to 1k2 resistor to ground. Would it be the NPN problem? I am now using BC547. And does it control by ...

Hello, I am now building the miniPEV to perform normal PEV charging. After I try 2 different charging stations. It always stops at cable check. EVSE send back a cable check response with failed. Check below for log.

At the same time, the multimeter shows an 8.87V. I think is the resistor that I ...

Hello, As I finally resolve EVSE problem. I find out that when I'm running pyPLC on Raspberry Pi, somehow it doesn't work. But when I'm running pyPLC on my Windows 10 laptop, it works! Not quite sure whether is the OS problem or else. Because when I turn miniEVSE box on. It did not detect pyPLC on ...

Hello guys, I measure the voltage from CP that are 12.13~12.15v. When I plug into tesla modelY. It gets detected from car and saying start charging at 16a 2v. But after several seconds. It bumps up an error that can not charging as AC charging. Please try DC charging.
456958939_1040768461175890 ...

Not sure what you want to do. It sounds like a man-in-the-middle setup, where you route all communication via miniPEV and miniEVSE, and connect the power pins directly from the realEV to the realEVSE.

Yes, we are conducting MITM attack testing on one of our country made EV to make sure its ...

For this to work, there are some preconditions to fulfull:
1. You are trying AC high level charging. From my experience, most of the cars and chargers do not support this, they use just the PWM for AC charging. So you need to make sure that your car and EVSE both support high level communication ...

Two EVSEs on the same line

What I mean is in a j1772 charging cable. The real car and EVSEs will connect N and L1 to send current and starting charging without real communication. And miniEVSE will connect to the real car via CP, PP, PE that I separate manually from the j1772 charging cable. And ...

I never used the button. On my original housing, the button is labelled "Pair", not "Reset". So it seems to set the CentralCoordinator setting to "Auto". This is not what we need here. Just flash the correct PIB on the correct adaptor and do NOT use the button at all. The expected behaviour is ...

Final update:
After reflash pib file on EVSE and PEV side. And reboot rasbpery pi on both side. Then running pyPlc.py E and P mode on both side. It finally blink 3 leds on and charging successfully.
450441891_449739781207071_3672124715791006464_n.png 451449440_8334036216628519_4235691584997827437 ...

Use an oscilloscope to check whether the EVSE transmits the homeplug coordinator packets. These should be strong (several volts) directly on the modem, a little bit weaker on the CP line (because of the serial resistor) and more weaker on the PEVs modem (because double resistors).

I don't have ...

* Somebody wrote, that it makes sense to update the firmware to the latest version, I personnally never did this on my modems.
* Are you sure that you wrote for each modem the correct configuration data (the PIB file)? And did not mix up the two modems, because the PEV modem will only work on PEV ...

Yes, I recommend using the resistor on both, the PEV and the EVSE. It prevents damaging currents. A possibility for the PEV side is shown here: https://github.com/uhi22/pyPLC/blob/mas ... d#dieterlv

I don't have 150 ohms, so I added 220 to PEV modem. And trying again to let it communicate each ...

What supply voltage do you measure at the modem? Should be 5V.


Thanks for helping. I didn't get the Gmail about replying on the forum. My friend help me to test out the voltage. Turns out, I was using the original battery box that the 18650 battery only has 3.7v. So I purchase 5v battery ...

Hello guys, i just now finish the hardware part. But when I turn on the power. The modem LEDs doesn't blink. Is it possible that I broke the modem when I'm removing the additional part from it? Any idea! thank for helping! 450576734_1506352306755988_668735981958301744_n.jpg 450461305 ...

Hello, I have some question about this project.
what kind of cable that connect to PEV ? 3D printed module that plug into PEV charging port
what kind of capacitance you used in this project?
2.PNG
Does Arduino code are as the same as this project? https://www.instructables.com/Arduino-EV ...

asavage wrote: ↑Wed Jun 19, 2024 3:06 pm image.png

Please use forum's native attachment schema rather than hotlinking.

Image hosting sites die off all the time (see: PhotoBucket).

Thanks for reminds that. I have edited it as attachment.

The overall block schematic is here: https://github.com/uhi22/pyPLC/blob/master/doc/EvseMode.md, added also some photos of my setup there.
The raspberry (or windows laptop) running pyPLC connects with an ethernet cable to the tp-pa4010. The tp-pa4010 and the arduino are powered by 5V from an USB ...

I went back some posts and one of the posts had this link http://www.helicopting.de/

So I compared my board with this and seems they're very similar...

compare modems.jpg

So I'll work to eliminate the AC PS side of things and see if it works. One question for the media access ports - which one ...

Hello, I am working on a project from pyPLC with EvseMode hardware. I have a tp-pa4010(same as this:https://openinverter.org/forum/viewtopic.php?p=59745#p59745) teardown, arduino nano, Raspberry Pi ready. But I don't quite know how to connect all hardware together and do the resistor wire things ...