Search found 587 matches

by uhi22
Sat Apr 20, 2024 12:17 pm
Forum: Charging
Topic: Drawing power out of CCS port (V2x, inverse charging, bidirectional CCS)
Replies: 30
Views: 18339

Re: Drawing power out of CCS port (V2x, inverse charging, bidirectional CCS)

Tested Tesla Model Y, it stops at the PreCharge. Most likely it expects a physical voltage on the port during the PreCharge.
by uhi22
Sat Apr 20, 2024 6:52 am
Forum: User Interface
Topic: Use ESP32 Web interface also as GVRET CAN device?
Replies: 37
Views: 1820

Re: Use ESP32 Web interface also as GVRET CAN device?

This is normal. With pin 37 high, the device is a "Station", it does not publish an own wifi network. It will try to connect your home network, so it does not appear in a wifi list. The only relevant thing is that you provided the right name and password in the credentials file.
by uhi22
Fri Apr 19, 2024 9:10 pm
Forum: User Interface
Topic: Use ESP32 Web interface also as GVRET CAN device?
Replies: 37
Views: 1820

Re: Use ESP32 Web interface also as GVRET CAN device?

Sounds like wrong baud rate of the serial monitor. 115200 is used in the Serial.begin.
by uhi22
Fri Apr 19, 2024 9:05 pm
Forum: Charging
Topic: First-Time Config of FOCCI And CCS1 vehicle charging
Replies: 8
Views: 457

Re: First-Time Config of FOCCI And CCS1 vehicle charging

The enable should be 1 from the beginning. Sending enable=0 would terminate the process, so you should always send 1.

In step 8, no ramp down to zero is necessary. Just send enable=0 or press the button on Foccci for 1s. The (fast) rampdown will be done by the charger.
by uhi22
Fri Apr 19, 2024 8:04 am
Forum: Events and Meetups
Topic: Linux-Infotag Augsburg 2024
Replies: 10
Views: 586

Re: Linux-Infotag Augsburg 2024

I think we will have the chance over the complete saturday. Personnally I plan to arrive around 10 in the morning, we have a desk with some demonstrations.
by uhi22
Tue Apr 16, 2024 9:27 am
Forum: Mitsubishi
Topic: Can you identify this Outlander item?
Replies: 6
Views: 512

Re: Can you identify this Outlander item?

Google says:
image.png
by uhi22
Tue Apr 16, 2024 6:52 am
Forum: User Interface
Topic: Use ESP32 Web interface also as GVRET CAN device?
Replies: 37
Views: 1820

Re: Use ESP32 Web interface also as GVRET CAN device?

Wifican is not detectable when Pin 35 pulled HIGH.. You can check the following. While still connected with the cable to the arduino IDE, open the serial monitor in the Arduino IDE. Press the reset button on the board. You should see some logging in the serial monitor. wifiMode1 .... WifiMode is 's...
by uhi22
Mon Apr 15, 2024 1:44 pm
Forum: Charging
Topic: Charging one battery from another as an alternative to parallel packs.
Replies: 9
Views: 507

Re: Charging one battery from another as an alternative to parallel packs.

As I understand, the OBCs are step-up-converters, they are able to make a power-factor-correction, following the sinus input voltage of e.g. 0 to 330V and boost it to e.g. 400V battery voltage. Not sure, because our nominal voltage of 230V AC are ~320V peak voltage, and my empty battery has 300V, so...
by uhi22
Mon Apr 15, 2024 11:45 am
Forum: User Interface
Topic: Use ESP32 Web interface also as GVRET CAN device?
Replies: 37
Views: 1820

Re: Use ESP32 Web interface also as GVRET CAN device?

For debugging your setup, you could add the data base file (dbc) of the "virtual" debug messages into SavvyCAN. This file is here: https://github.com/uhi22/wifican/blob/main/wifican_development.dbc This allows you to see how long the wifican is running (wificanAliveCounter is counting up),...
by uhi22
Mon Apr 15, 2024 9:24 am
Forum: Charging
Topic: Charging one battery from another as an alternative to parallel packs.
Replies: 9
Views: 507

Re: Charging one battery from another as an alternative to parallel packs.

What about using two buck-boost converters back-to-back, to allow both batteries have any voltage, and the software can select in which direction the current flows. Would allow to use any pack as "range extender", no matter of the nominal voltage or capacity or state-of-charge.
by uhi22
Mon Apr 15, 2024 7:17 am
Forum: User Interface
Topic: Use ESP32 Web interface also as GVRET CAN device?
Replies: 37
Views: 1820

Re: Use ESP32 Web interface also as GVRET CAN device?

@Jacobmess, thankyou for this info!! This was my problem. The Wifican password is "topsecret" and not my home network password. So once the "credentials.h file has been modified with local your wifi details", load the sketch and connect to the new "wifican network" usi...
by uhi22
Mon Apr 15, 2024 7:00 am
Forum: Charging
Topic: QCA7000 Foccci+Clara User thread
Replies: 22
Views: 1154

Re: QCA7000 Foccci+Clara User thread

In this log, the best checkpoint number what we see is the 102, this is at the very beginning of the SLAC procedure. image.png For me this looks like that the communication on the CP line is nearly impossible, we only sporadically see a response from the charger. This is much worse than the other te...
by uhi22
Mon Apr 15, 2024 5:43 am
Forum: User Interface
Topic: Use ESP32 Web interface also as GVRET CAN device?
Replies: 37
Views: 1820

Re: Use ESP32 Web interface also as GVRET CAN device?

Yes, the wifican privides some debug data as "virtual" CAN messages.
by uhi22
Fri Apr 12, 2024 3:43 pm
Forum: User Interface
Topic: Use ESP32 Web interface also as GVRET CAN device?
Replies: 37
Views: 1820

Re: Use ESP32 Web interface also as GVRET CAN device?

I never used debugging in Arduino, so regarding openocd I have no idea. Tried a workflow: 1. Create a new folder C:\Sketchfolder 2. Open in a browser https://github.com/uhi22/wifican 3. Green Button "Code", choose "Download zip". This creates a wifican-main.zip in the downloads f...
by uhi22
Fri Apr 12, 2024 12:34 pm
Forum: User Interface
Topic: Use ESP32 Web interface also as GVRET CAN device?
Replies: 37
Views: 1820

Re: Use ESP32 Web interface also as GVRET CAN device?

You write "Add zip library", this sounds wrong. You need to get the sources from github, either using git clone, or downloading as zip from github. If you chose the zip download, unzip the project, and the unzipped folder IS your sketch folder. Just "open sketch" and select the f...
by uhi22
Fri Apr 12, 2024 9:17 am
Forum: Battery Managment (BMS)
Topic: Manual discharge of a 60v pack
Replies: 6
Views: 569

Re: Manual discharge of a 60v pack

If your goal is, that multiple packs have the same voltage at the end, you could connect all minus of the packs together, and between the plus some resistor. And just wait, they will balance perfectly. I do not know your voltage difference, but if this is just below 15V, you can simply use 12V lamps...
by uhi22
Fri Apr 12, 2024 6:43 am
Forum: Inverters / Motor Controllers
Topic: Am I to dumb for Open Inverter
Replies: 21
Views: 1283

Re: Am I to dumb for Open Inverter

With these kind of connectors it is easy to plug them 2.54mm next to the intended position, in every direction. Maybe this could cause some unintended current pathes.
by uhi22
Fri Apr 12, 2024 6:34 am
Forum: Charging
Topic: QCA7000 Foccci+Clara User thread
Replies: 22
Views: 1154

Re: QCA7000 Foccci+Clara User thread

That's half-way good news. Details here: https://github.com/uhi22/clara-logs#2024-04-11_clara_phiphong_doug The communication is established, we run until the CableCheck loop, but after three cable check loops, the charger decides to not respond anymore. Normally, if the charger sees a problem in th...
by uhi22
Thu Apr 11, 2024 7:10 am
Forum: User Interface
Topic: Use ESP32 Web interface also as GVRET CAN device?
Replies: 37
Views: 1820

Re: Use ESP32 Web interface also as GVRET CAN device?

The switch is intended to select between "at home" (where the device connects to the home wifi) and "outside" where the device creates an own hotspot where the laptop can connect. Maybe this can be replaced by a kind of auto-detection or both-in-one, but for testing I found it be...
by uhi22
Wed Apr 10, 2024 11:49 am
Forum: User Interface
Topic: Use ESP32 Web interface also as GVRET CAN device?
Replies: 37
Views: 1820

Re: Use ESP32 Web interface also as GVRET CAN device?

I use arduino IDE, the version etc is mentioned in the readme of the github.
by uhi22
Tue Apr 09, 2024 7:26 pm
Forum: Charging
Topic: First-Time Config of FOCCI And CCS1 vehicle charging
Replies: 8
Views: 457

Re: First-Time Config of FOCCI And CCS1 vehicle charging

So only send these values if there is a change to be made? When you change your battery, yes. And most likely you will not "send" them, you use the web interface (or command line tool) to configure them and write them into flash, so they will be there "forever". The charge curre...
by uhi22
Tue Apr 09, 2024 6:39 pm
Forum: Charging
Topic: First-Time Config of FOCCI And CCS1 vehicle charging
Replies: 8
Views: 457

Re: First-Time Config of FOCCI And CCS1 vehicle charging

"1) Set MAX params, inlet voltage src, target, etc... before connection to charger" --> The max parameters and inlet voltage source are "parameters", in the sense that you configure them once when you build everything together, you save them into flash, and there they will be the...
by uhi22
Mon Apr 08, 2024 12:47 pm
Forum: Battery Managment (BMS)
Topic: SOC estimation of LFP battery packs
Replies: 4
Views: 344

Re: SOC estimation of LFP battery packs

Isn't counting watthours after a full charge the only necessary thing? Is it necessary to use the voltage for SOC estimation?
by uhi22
Sun Apr 07, 2024 11:22 am
Forum: Charging
Topic: Develop a QCA7000 board?
Replies: 569
Views: 6090555

Re: Develop a QCA7000 board?

RX_N / RX_P / RXIN_N / RXIN_P : 0V TX_N / TX_P / TXOUT_N / TXOUT_P : ~1.2V constant [70] [PEVSLAC] received GET_SW.CNF For MAC 00:b0:52:00:00:01 software version BootLoader If the QCA reports "Bootloader" as software version, it was not able to load its firmware from the SPI flash. I've n...
by uhi22
Fri Apr 05, 2024 5:36 pm
Forum: Charging
Topic: Develop a QCA7000 board?
Replies: 569
Views: 6090555

Re: Develop a QCA7000 board?

I do not see the boost converter in the picture. As long as the lower switch is on, the current through the L rises. If the lower switch is off, the current keeps running via the upper diode or upper switch, the voltage is only rised by the forward voltage of the upper diode in worst case. Everythin...