Search found 6768 matches

by johu
Sat Jul 12, 2025 5:16 am
Forum: General
Topic: Unable to access site from Australia
Replies: 2
Views: 109

Re: Unable to access site from Australia

Yes there is currently a geo block viewtopic.php?t=6368

It seems it spread a bit widely. I have removed the block now and will see how things go. Please try again and thanks for reporting
by johu
Fri Jul 11, 2025 10:19 pm
Forum: General
Topic: Server hardware issues
Replies: 1
Views: 78

Server hardware issues

As some of you noticed we had a longer outage today. The reason is that at least one of the two drives in raid1 went bad. It was replaced today but there are still some hickups. So you might experience some shorter outages in the next days where we reboot and try to diagnose the problem.
by johu
Wed Jul 09, 2025 1:49 pm
Forum: Drive trains (motors and inverters)
Topic: Boat mode implementation
Replies: 2
Views: 138

Re: Boat mode implementation

Ok, I said I'm stepping away from inverters but I'm afraid nobody else knows this. Of course the code has all the answers :)

Boat mode has two options
a) throttle input is not treated as a torque command but as a speed command (cruisemode=ThrottlePot)
b) Throttle is center aligned, pulling it back ...
by johu
Wed Jul 09, 2025 1:45 pm
Forum: Energy Storage
Topic: High voltage LFP storage with Flying ADC BMS
Replies: 7
Views: 1538

Re: High voltage LFP storage with Flying ADC BMS

Ok, that makes sense, the DC bus usually sits at 640V. So the battery voltage must leave some margin to this.

The cells were 40Ah. Now maybe 20Ah. So 6 kWh in the 96S pack

4 bricks started out perfectly balanced, I charged them to 3.6V while all 16 cells were in parallel. The other 2 packs are ...
by johu
Wed Jul 09, 2025 1:35 pm
Forum: Batteries and Charging
Topic: Develop a QCA7000 board?
Replies: 703
Views: 9697567

Re: Develop a QCA7000 board?

So it seems like I have (at least partially) killed my Foccci with over voltage.
I recently added the changeover relay between stationary battery and EVSE connected one.
I am currently travelling and the relay was connected to the stationary battery. That means the small HV source hasn't got ...
by johu
Wed Jul 09, 2025 1:10 pm
Forum: Vehicle Control (VCU)
Topic: Compiling firmware but not getting same hash
Replies: 4
Views: 293

Re: Compiling firmware but not getting same hash

tbh I wouldn't be surprised about subtle differences when firmware is compiled with a different version of the compiler or supporting libs
by johu
Tue Jul 08, 2025 7:44 pm
Forum: General
Topic: Johannes on Holiday
Replies: 35
Views: 15062

Re: Johannes on Holiday

Holiday season is coming up. It will be a road trip through Norway and Sweden (who would have thought?).

We drive from Kassel to Hirtshals in 2 days, take a ferry to the Kristiansand in Norway and then roughly up the west coast. The weather ultimately decides at which point we will fork off to ...
by johu
Tue Jul 08, 2025 7:38 pm
Forum: Battery Managment (BMS)
Topic: Flying ADC 16 channel BMS 96S test
Replies: 227
Views: 91644

Re: Flying ADC 16 channel BMS 96S test

Proton wrote: Tue Jul 08, 2025 4:59 pm Quick update:

the boards have 12v all the time. When I turn the car on sometimes board 5 and 6 do not power on, sometimes just board 6 does not power on. I have to turn off the 12 v to all boards, then turn it back on and then turn on the car.
Ok, will test that but that if for after my holiday
by johu
Tue Jul 08, 2025 10:48 am
Forum: Battery Managment (BMS)
Topic: Flying ADC 16 channel BMS 96S test
Replies: 227
Views: 91644

Re: Flying ADC 16 channel BMS 96S test

mario wrote: Tue Jul 08, 2025 8:57 am @johu should I upload latest firmware to my boards?
Yes you should and I very much recommend the "capacitor patch"
by johu
Tue Jul 08, 2025 7:56 am
Forum: Battery Managment (BMS)
Topic: Flying ADC 16 channel BMS 96S test
Replies: 227
Views: 91644

Re: Flying ADC 16 channel BMS 96S test


Johu, IMO it is worth it to add params for sleep time and idle current, both came in very useful in my vx1 fork and I guess others may find them useful as well


Yes worked on that, see latest commit.

Now where do we stand?
- I run v2.1, v2.3 and v2.4 hardware on a 96S system and it has survived ...
by johu
Mon Jul 07, 2025 11:44 am
Forum: Nissan
Topic: Leaf Current Sensor instead of IVT-S [SOLVED]
Replies: 15
Views: 409

Re: Leaf Current Sensor instead of IVT-S [SOLVED]

The LeafBMS has a current sensor connected to it. There is no separate junction box logic.
by johu
Mon Jul 07, 2025 11:40 am
Forum: General
Topic: Using Zombie with Leaf Inverter
Replies: 4
Views: 245

Re: Using Zombie with Leaf Inverter

Maybe Greg was referring to Leaf BMS support?
by johu
Sat Jul 05, 2025 9:25 pm
Forum: User Interface
Topic: ESP32 Can WiFi module (comes with Foccci)
Replies: 8
Views: 542

Re: ESP32 Can WiFi module (comes with Foccci)

I guess I'll just send you a new one when the batch arrives
by johu
Sat Jul 05, 2025 9:01 pm
Forum: Projects
Topic: Classic Mini (newbie)
Replies: 42
Views: 1515

Re: Classic Mini (newbie)

by johu
Sat Jul 05, 2025 9:01 pm
Forum: Projects
Topic: [WIP] MX-5 NB Tesla SDU
Replies: 1
Views: 140

Re: [WIP] MX-5 NB Tesla SDU

Loving them straight to the point builds. Have fun!
by johu
Sat Jul 05, 2025 11:00 am
Forum: V2x
Topic: Bidirectional charger with PV Hybrid inverter and pyPLC
Replies: 42
Views: 56675

Re: Bidirectional charger with PV Hybrid inverter and pyPLC

Yeah I could but then I need an additional relay to change over from inverter to heater. The inverter is like 97% efficient so meh...
by johu
Sat Jul 05, 2025 6:45 am
Forum: Projects
Topic: WIP 1974 Ford Capri + GS450H
Replies: 49
Views: 18805

Re: WIP 1974 Ford Capri + GS450H

Wow, that is a super clean installation!
by johu
Fri Jul 04, 2025 12:00 pm
Forum: User Interface
Topic: ESP32 Can WiFi module (comes with Foccci)
Replies: 8
Views: 542

Re: ESP32 Can WiFi module (comes with Foccci)

Doesn't sound great. Do you get 3.3V on the test point next to C5?
by johu
Thu Jul 03, 2025 3:24 pm
Forum: User Interface
Topic: ESP32 Can WiFi module (comes with Foccci)
Replies: 8
Views: 542

Re: ESP32 Can WiFi module (comes with Foccci)

Warm is normal, no wifi is not normal.
try closing jp2.
You should see the led flash briefly when connecting power
by johu
Thu Jul 03, 2025 5:57 am
Forum: Batteries and Charging
Topic: Use Tesla to power homes or other devices through V2X
Replies: 3
Views: 325

Re: Use Tesla to power homes or other devices through V2X

Hi and welcome!
Please attach the images directly, you are now allowed to do so!
by johu
Wed Jul 02, 2025 7:03 pm
Forum: V2x
Topic: Bidirectional charger with PV Hybrid inverter and pyPLC
Replies: 42
Views: 56675

Re: Bidirectional charger with PV Hybrid inverter and pyPLC

Big update on this. I have removed the old 1.5 kWh storage system and now rely solely on the Sungrow inverter to shift all the power around
1751481787594.jpg
I connect V2x and the stationary battery via a changeover relay. It would be great to change over from the stationary to the car battery ...
by johu
Wed Jul 02, 2025 6:33 pm
Forum: Open Tasks
Topic: Take over responsilibility for inverter development and support
Replies: 10
Views: 1830

Re: Take over responsilibility for inverter development and support


Get me out of here, I don't want to deal with LDU and SDU again!

Yes it's not like anybody really got on top of about it but seeing the sad face when you tell people they have to buy a new inverter is priceless in a negative way. And then you can't even say why it happened and how to really ...