Search found 513 matches

by uhi22
Wed Feb 28, 2024 6:58 pm
Forum: Charging
Topic: Foccci wakeup/sleep discussions
Replies: 32
Views: 3532

Re: Foccci wakeup/sleep discussions

If the foccci would be woken up by CAN (or wakeup line) when the door is opened, or the interieur light is on, or even KL15, or something like this, it could detect the PP and communicate the driveaway protection. Okay, this would cost current during driving, also not nice.
by uhi22
Wed Feb 28, 2024 11:22 am
Forum: User Interface
Topic: what am I doing wrong ??? ESP32 flashing
Replies: 32
Views: 910

Re: what am I doing wrong ??? ESP32 flashing

Nobody needs this, just delete the SD card things completely :-)
(Johu will beat me for this sentence ;-) )
by uhi22
Wed Feb 28, 2024 7:40 am
Forum: User Interface
Topic: what am I doing wrong ??? ESP32 flashing
Replies: 32
Views: 910

Re: what am I doing wrong ??? ESP32 flashing

Strange. You could add some further instrumentation in the code, to find out where it stops. Go to the setup() function, and find the DBG_OUTPUT_PORT.println("No RTC found, defaulting to sequential file names"); This still works, we see the output in the console. Add below this further lin...
by uhi22
Tue Feb 27, 2024 5:15 pm
Forum: Charging
Topic: Develop a QCA7000 board?
Replies: 528
Views: 2846033

Re: Develop a QCA7000 board?

For the moment I'll concentrate on testing and documenting what I find. So feel free to work further on the 4.3 follow-ups. I think merging is difficult (or impossible?), so just continuing on one branch is the best idea. This could be in your repository for now.
by uhi22
Tue Feb 27, 2024 10:55 am
Forum: User Interface
Topic: what am I doing wrong ??? ESP32 flashing
Replies: 32
Views: 910

Re: what am I doing wrong ??? ESP32 flashing

This is the part of the console output which shows the download of the software. This looks good, but more interesting would be to see what comes afterwards. In https://github.com/jsphuebner/esp32-web ... n_notes.md I noted
image.png
by uhi22
Tue Feb 27, 2024 10:31 am
Forum: User Interface
Topic: what am I doing wrong ??? ESP32 flashing
Replies: 32
Views: 910

Re: what am I doing wrong ??? ESP32 flashing

What does the console output tell?
by uhi22
Tue Feb 27, 2024 9:58 am
Forum: User Interface
Topic: what am I doing wrong ??? ESP32 flashing
Replies: 32
Views: 910

Re: what am I doing wrong ??? ESP32 flashing

Well, more transmit power (setTxPower) requires more supply current and could lead to crash if the circuit is not able to provide high peak current.
by uhi22
Tue Feb 27, 2024 9:23 am
Forum: Charging
Topic: Develop a QCA7000 board?
Replies: 528
Views: 2846033

Re: Develop a QCA7000 board?

Oops :-D At least the version from your git shows "4.3" We need to work on the quality assurance process a little bit ;-)
by uhi22
Tue Feb 27, 2024 7:28 am
Forum: User Interface
Topic: what am I doing wrong ??? ESP32 flashing
Replies: 32
Views: 910

Re: what am I doing wrong ??? ESP32 flashing

Providing a wifi access point is a common task for an ESP32, so with using the proven-in-use software not much can go wrong. You could even try some of the example projects included in the Arduino IDE. (I only can speak for Arduino IDE, because I'm using this. I'm not familiar with Platformio.) Two ...
by uhi22
Tue Feb 27, 2024 7:12 am
Forum: Charging
Topic: Develop a QCA7000 board?
Replies: 528
Views: 2846033

Re: Develop a QCA7000 board?

Just testing the newly arrived v4.2 boards. On first look, quite good, the SMD transformer works, demo-charging on the desk is fine. But: The intended improvements regarding PP and IPROPI went wrong, there are missing tracks. Seems I fully ignored the "unconnected" errors in the design rul...
by uhi22
Mon Feb 26, 2024 9:09 pm
Forum: User Interface
Topic: change the IP
Replies: 2
Views: 122

Re: change the IP

This is not obvious. I found an answer here: https://www.esp8266.com/viewtopic.php?f=29&t=12124
So before the line with
WiFi.softAP(....)
add a line
WiFi.softAPConfig(apIP, IPAddress(192, 168, 8, 1), IPAddress(255, 255, 255, 0));
Not sure about the subnet mask, just copied the example.
by uhi22
Mon Feb 26, 2024 9:51 am
Forum: User Interface
Topic: interface problem tesla sdu with esp32 canlite module
Replies: 27
Views: 474

Re: interface problem tesla sdu with esp32 canlite module

Maybe one last try before appying 400V to the ESP ( :-D )
I used arduino IDE to flash all the things, this is a little bit complicated, but I found a way. Described here: https://github.com/jsphuebner/esp32-web ... n_notes.md
by uhi22
Mon Feb 26, 2024 7:31 am
Forum: Charging
Topic: Develop a QCA7000 board?
Replies: 528
Views: 2846033

Re: Develop a QCA7000 board?

Basically agree. The 18mH and 5.2 ohms have a time constant tau around 3.6ms, this means after 3.6ms the current wents down to 63% of its start value. If we assume 100Hz and 50% duty, we have 5ms off-time, this is longer than the tau. Not good. I was assuming that the "big coils" have more...
by uhi22
Sun Feb 25, 2024 7:40 pm
Forum: User Interface
Topic: interface problem tesla sdu with esp32 canlite module
Replies: 27
Views: 474

Re: interface problem tesla sdu with esp32 canlite module

I'd like to see a video of this.
by uhi22
Sun Feb 25, 2024 3:50 pm
Forum: Charging
Topic: Develop a QCA7000 board?
Replies: 528
Views: 2846033

Re: Develop a QCA7000 board?

johu wrote: Fri Feb 23, 2024 3:50 pm Oh, I wasn't aware of the ridiculous switching speed when I upped the PWM frequency to something unhearable.
Can we go back to 100 Hz?
by uhi22
Fri Feb 23, 2024 1:00 pm
Forum: Charging
Topic: Develop a QCA7000 board?
Replies: 528
Views: 2846033

Re: Develop a QCA7000 board?

Well, the idea to NOT use free-wheeling diodes on the board was explained here: https://openinverter.org/forum/viewtopic.php?p=58526#p58526 I do not have an idea how to bring all aspects into one solution. Maybe a separate 12V for the high-power, which only is connected to on-board freewheeling diod...
by uhi22
Fri Feb 23, 2024 12:45 pm
Forum: Charging
Topic: Develop a QCA7000 board?
Replies: 528
Views: 2846033

Re: Develop a QCA7000 board?

Hm, was assuming that the contactor drivers are able to protect theirself. Seems not. One possible topic: If the contactor is driven by PWM, the turn-off leads to high voltage (40V?), which is clamped by the driver. The driver is designed to do this, but of course it produces heat. The idea is to us...
by uhi22
Fri Feb 23, 2024 6:41 am
Forum: Charging
Topic: Develop a QCA7000 board?
Replies: 528
Views: 2846033

Re: Develop a QCA7000 board?

Yes, the extra mapping of a timeout counter is a "nerdy" hack. I also would prefer to have for a received signal a kind of qualifier which says whether it is live or stuck.
by uhi22
Fri Feb 23, 2024 5:54 am
Forum: Charging
Topic: Develop a QCA7000 board?
Replies: 528
Views: 2846033

Re: Develop a QCA7000 board?

I'd propose to change the timeout to 5 seconds in Clara, so that even with a one-second BMS message there is sufficient tolerance.
by uhi22
Thu Feb 22, 2024 7:58 pm
Forum: Charging
Topic: Develop a QCA7000 board?
Replies: 528
Views: 2846033

Re: Develop a QCA7000 board?

celeron55 wrote: Thu Feb 22, 2024 6:18 pm Rate my CCS charge session
How did you produce this log? Looks quite nice.
by uhi22
Thu Feb 22, 2024 9:06 am
Forum: Charging
Topic: Develop a QCA7000 board?
Replies: 528
Views: 2846033

Re: Develop a QCA7000 board?

IMG_20240222_094744.jpg
IMG_20240222_094709.jpg
Got a parcel today. But: "330" is not 330ohms, beginners fault.
by uhi22
Thu Feb 22, 2024 7:14 am
Forum: V2x
Topic: Updates to SAE J3068 and SAE J3068/1
Replies: 4
Views: 147

Re: Updates to SAE J3068 and SAE J3068/1

https://en.m.wikipedia.org/wiki/SAE_J3068
says it is a kind of LIN, together with analog levels on the CP. Never heard about this before.

And even open source reference Implementation https://github.com/udv2g/saej3068-ref
by uhi22
Wed Feb 21, 2024 6:39 pm
Forum: Charging
Topic: Develop a QCA7000 board?
Replies: 528
Views: 2846033

Re: Develop a QCA7000 board?

Wow, great, and soo easy when knowing how. Thanks. Any idea how to bring a software version number into the software, so that in case of troubles, we can see in the console log and in the web interface, which version was used? At the moment is just kind of "parameter compatibility version"...
by uhi22
Tue Feb 20, 2024 7:44 pm
Forum: Charging
Topic: Foccci wakeup/sleep discussions
Replies: 32
Views: 3532

Re: Develop a QCA7000 board?

Regarding noise pickup: I made an interesting observation in my Ioniq: They use a shielded CP line from the engine compartment (where the OBC sits), to the cabin (where the PLC modem sits under the driver seat) to the charge port above the rear left wheel. This avoids flooding the complete vehicle w...
by uhi22
Tue Feb 20, 2024 6:33 pm
Forum: Charging
Topic: Foccci wakeup/sleep discussions
Replies: 32
Views: 3532

Re: Develop a QCA7000 board?

As soon as they see the 2k7 on the CP, yes. And special case Supercharger: as soon as it sees voltage on the PP and the 2k7 on CP, yes. I even checked on some "out of service" chargers, which were powered, but showed in the display that they do not work. They have 12V on the CP, and connec...