- OvmsDev - Open Vehicles

Ioniq 28kwh / ovms problems
by Tamás Kovács 30 Dec '24

30 Dec '24

Now, during the holidays, I had some time to start solving my problem with the OVMS development environment again, since the basic ESP 3 is EOL, so it doesn't work, but luckily I managed to find a solution. ( https://github.com/espressif/esp-idf/issues/14809)) The car with the OVMS is an ioniq 28kwh I noticed that the car's 12V battery was very low. the last time I went, the ovms froze while charging, it read 78% all the time, and I already drove 100 km with it. I didn't bother with it, but I noticed that the 12V battery was not charged, then I looked at it and there were no can messages. I restarted it and then the dive started again. My other problem is that no matter how many times I try to put another firmware on it via Wi-Fi, it won't start, I have to unplug it and plug it back in. Could you give me some advice on where I should go in troubleshooting? -- Üdvözlettel: Kovács Tamás

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12v Reference voltage
by Tamás Kovács 22 Dec '24

22 Dec '24

Can anybody explain, why changing the 12v reference voltage, or is that good? I get some battery notification because this. Hyundai ioniq 28 kWh. Screenshot 2024-12-22 at 9.14.09.png (490 KB) <https://mail.google.com/mail/u/0?ui=2&ik=b954432353&attid=0.1&permmsgid=msg…> -- Best regards: Tamás Kovács

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Can bus error while read canbus
by didier＠ernotte.com 03 Nov '24

03 Nov '24

Hi, I don't know what changed on my OVMS box, but I am no longer abl to read manually (in the shell) any PID with the "obdii can1 request...". I receive the tranmission failure error. But it used to work fine a couple of days ago. Other commands works great like "re obdii scan start...", so the connection with the OMVS box, communication on the OBD2 port, etc works fine. What could go wrong ? I tried to download the lasted image. Same error. Here is a session that I did : OVMS# re obdii scan start 1 7e4 dd00 de00 -r7ec Scan started: bus 1, ecu 7e4, rxid 7ec-7ec, polltype 22, PID dd00-de00 (step 1), timeout 3 seconds I (804831) webcommand: HttpCommandStream[0x3f8d76b0]: 3317288 bytes free, executing: re obdii scan start 1 7e4 dd00 de00 -r7ecI (810981) re-pid: Scan of 7e4 completeI (817271) webserver: HTTP POST /api/executeOVMS# re obdii scan status Scan complete (7e4 dd00-de00)Scan started : 2024-10-30 17:46:53 EDTLast response: 2024-10-30 17:46:53 EDT7e4[7ec]:dd00 70 e8 79 bb7e4[7ec]:dd01 01 1c f87e4[7ec]:dd02 3a7e4[7ec]:dd04 3d7e4[7ec]:dd05 3a7e4[7ec]:dd06 e77e4[7ec]:dd08 007e4[7ec]:dd09 00I (817271) webcommand: HttpCommandStream[0x3f8d7350]: 3314968 bytes free, executing: re obdii scan statusI (821941) webserver: HTTP POST /api/executeI (821941) webcommand: HttpCommandStream[0x3f8d7414]: 3318624 bytes free, executing: obdii can1 request device 7E4 7EC 22dd00OVMS# obdii can1 request device 7E4 7EC 22dd00 7e4[7ec] 22dd00: ERROR: transmission failure (CAN bus error)Didier

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A forum developer question
by Mark Webb-Johnson 06 Oct '24

06 Oct '24

A question regarding web dashboard plugin development has been asked on the forums. Grateful if someone could assist. https://www.openvehicles.com/node/4281 Hi everybody, Although I am not completely new to JavaScript programming, I am new to the concept of OVMS plugins and read the documentation regarding it several times.. I also got the fog light example up and running on my unit. But I guess I am missing something obviously important (that is not 100% explained in the documentation?) while trying to build a very simple plugin on my own: I don't want any events or updates, but simply extend the dashboard by some additional metrics read just once when initializing the dashboard. This is what I have created:... Regards, Mark.

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Duktape Vehicle
by Michael Geddes 05 Oct '24

05 Oct '24

In a recent conversation with Mark we were talking about utilising Duktape more for perhaps even vehicle implementations. I'm wondering if a better approach is to allow any vehicle to be extended via hooks in the base vehicle class or would it be better to have a duktape vehicle that could be extended. There would necessarily be many bits to the puzzle. For example I have a class that allows us to know when blips to the 12V battery line might mean that somebody is interacting with the car so we should start polling the bus.. Should we put this (with a duktape interface) at the vehicle.h level? //.ichael

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Access to a diagnostic session with private access
by didier＠ernotte.com 30 Sep '24

30 Sep '24

Hi, I need to put a ECU into diag mode and access private data in a secured session.I am supposed to send "10 03", then "27 03", receive a seed, and send the private key with "27 04".This is working fine with the terminal in CarScanner mobile app connected to a BT dongle, but when I try to use the OVMS box, the "10 03" is ok, but "27 03" return a serviceNotSupportedInActiveSessionerror. It is possible to start a secured / private session with the OVMS box ? Didier

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Pull Request for new vehicle
by solterra＠kezarnet.com 29 Sep '24

29 Sep '24

Hi all, I'm getting ready to create a pull request to add support for the Toyota eTNGA platform vehicles, specifically the Toyota bZ4X and Subaru Solterra. I’ve been developing this in my fork for quite some time, and I want to make sure the structure of the PR aligns with the project’s standards and expectations. Given the length of time this has been in development, I’m seeking any advice or guidance on best practices for structuring the pull request or specific areas that might need special attention. I’d appreciate any input that can help streamline this process and ensure a smooth integration.

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Instructions for building the "new idf" version?
by Craig Leres 21 Sep '24

21 Sep '24

[wow, I guess I suck at mailing lists!] Apologies for asking the list but I'm not having any luck searching the archives by eye, a month at a time (and google doesn't appear to crawl lists.openvehicles.com) Where are the instructions for building the version of ovms that uses a newer idf? What version of the toolchain will I need? Thanks! Craig

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access to writer?
by sharkcow 15 Sep '24

15 Sep '24

Thanks for the swift replies! So the deal is I do want to react to a shell command, means I do have a reference to the current writer. But since my code works asynchronously it's not easily possible to pass the writer to the other functions. I'll think about it some more :) I just wanted to return useful information also on the server web shell and Android app since I realized some people don't/can't use the built-in web shell (where I can output everything via log commands). sharkcow > Probably the best you can do is do a log. If you the do log monitor yes > and enable the channel it will appear. > > I think you need to take a step back and say what your original problem is. > > Remember multiple 'writers' can be active / temporarily created depending > > > //. > > On Fri, 13 Sept 2024, 20:40 Michael Balzer via OvmsDev, < > ovmsdev at lists.openvehicles.com> wrote: > >> The short answer is: you can't. >> >> There is no "current" writer. If a function may need to output text to a >> writer, you need to pass the writer pointer to that function. >> >> In case of functions that may be called within a user command execution >> and shall then provide output, add the writer to the signature, and only >> use it when it's not null. If the output is important, send it to the >> log if the writer is null. >> >> If you need to reduce the output for certain output channels, you'll >> also want to pass the "verbosity" parameter along with the writer pointer. >> >> Regards, >> Michael >> >> >> Am 13.09.24 um 08:55 schrieb sharkcow via OvmsDev: >> > Hi all, >> > >> > I have a dumb question: how do I get access to the current "writer" >> > object in a "regular" function in my vehicle code (not defined by >> > RegisterCommand)? >> > >> > Thanks! >> > >> > sharkcow >> > _______________________________________________ >> > OvmsDev mailing list >> > OvmsDev at lists.openvehicles.com >> > http://lists.openvehicles.com/mailman/listinfo/ovmsdev >> >> -- >> Michael Balzer * Helkenberger Weg 9 * D-58256 Ennepetal >> Fon 02333 / 833 5735 * Handy 0176 / 206 989 26 >> >> _______________________________________________ >> OvmsDev mailing list >> OvmsDev at lists.openvehicles.com >> http://lists.openvehicles.com/mailman/listinfo/ovmsdev >>

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access to writer?
by sharkcow 13 Sep '24

13 Sep '24

Hi all, I have a dumb question: how do I get access to the current "writer" object in a "regular" function in my vehicle code (not defined by RegisterCommand)? Thanks! sharkcow

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