Hi All,
I have 2 open inverter boards using the esp8266 board, one for my small drive unit and another for my Gen2 charger. I can already access the web UI on 192.168.4.1.
I have been looking for detailed steps to update the web interface from the old UI to the new one on Git, but there don't seem ...

Hi,
I have a Tesla SDU running the v3 board with firmware version 5.35.R
Is there a way I can implement Hill Hold?
If yes, what are the recommended parameters for a Tesla SDU?

This thread can be closed. No solution found for the fixed PWM output.
I ended up getting a Corsa EPAS control unit to control the electric steering.

Not supposed to be like that. Is your 12v supply stable?


Yes it is. I use the same supply for the Tesla SDU and DCDC converter which run fine.

I did find a solution after going through numerous threads here.

SOLUTION I FOUND : For anyone else using the Openinverter GEN 2 Charger v5 board who ...

Hi All,
I have a Tesla GEN 2 Charger with an openinverter v5 board running firmware version 1.06R as shown below:

ff.png
erer.png

I have the following issue;
Every time I turn the charger on, the WIFI web interface becomes available, however, I can not see any parameters or check spot values ...

jrbe wrote: ↑Thu Nov 14, 2024 7:35 pm Does the rack assist change? What happens with the rack if you set a fixed pwm when in drive / reverse?

How do I set a fixed PWM?

I have completed an EV conversion using a Tesla Small Rear drive unit running a V5 board with firmware v5.27. I have used an electric steering rack from a Honda that needs a VSS signal that I get from the ABS, an engine pulse signal that I am getting from the Auxilliary PWM Output of the inverter ...

Do you have a known working setup to confirm you Arduino and mcp2515 are working?

Check the crystal frequency for the can controller matches the used library.


Yes, I am using the same Arduino and MCP2515 to read the CAN system for the conversion car, so it works. I have tried to match all the ...

I am having the same issue as @timbradley.
I can not get my MCP2515 to recieve any CAN messages fron the inverter even after mapping them to as TX values.
I have tried to map one value at a time but can not recieve any values. I am using an Arduino with an MCP2515.

Anyone tried reading CAN messages ...

mane2 wrote: ↑Sun Jul 14, 2024 7:36 pm I've had TMPHSMAX error pretty quickly when I had air in the cooling system. It took less than 1km driving to go over 85c. Waiting 30 seconds it went down, but quickly came back when starting to drive. Could drive only 100 meters and wait 30 seconds..

Did you manage to fix it?

Hi All,
Looking for help with the Tesla Small Drive Unit using a v6 board running software v5.27.

For some reason the tmphs keeps jump up when I floor the throttle and dropping back down when the car idles. It goes as high as 90 degrees for about 1 second then drops back down to about 38-45 ...

Hi All,
Looking for help with the Tesla Small Drive Unit using a v6 board running software v5.27.

For some reason the tmphs keeps jump up when I floor the throttle and dropping back down when the car idles. It goes as high as 90 degrees for about 1 second then drops back down to about 38-45 ...

I have for sale these parts ZEVA open source edition

EVMS3 ...170 eu (with precharge option for maximum 400v battery +40eu)
BMS24 ... 170 eu
EVMS monitor ...130 eu
can shunt interface 70 eu(not available now but could also be supplied under request)

Flashed with latest firmware.
Housing is home ...

KimchiKimKim wrote: ↑Thu Aug 31, 2023 7:42 pm All info to implement crc in code is documented in the 6803 data sheet memory registers.

Kindly request that you point me to the documentation as I can not seem to find these data sheet registers for the life of me.

P.S.Mangelsdorf wrote: ↑Sat Aug 19, 2023 9:32 pm Yes.
https://openinverter.org/wiki/CAN_communication

So just to be clear, and something that the documentation does not clarify, do I enter the custom value as the gain?

Thank you.

Can I send custom CAN messages based on SDU value mappings?

For example, I would like to send the CAN messade ID 0x43F over 8 bits starting at Bit 0 with the decimal value of 13976218851319218176 when "Forward" direction is selected.

Can this be done over the web interface or CLI?

I have a Tesla SDU with an openinveter board v6. I am wondering if it is worth upgrading it to a v8 board or if I just upgrade to the 5.27 firmware.

LTC6803 introduced a CRC so you would need to add to the driver code in order to use it. however is pin compatible so no PCB changes. I bought a bunch of ltc6802-2 from an Alibaba IC sourcing company since their min order quantity was 50 units. They have all worked flawlessly so far and I have so ...

@bexander
Thanks so much! Definately the right direction.

Hi Guys,

I am new here but not new to the great work being done by the guys here.
I am in search of a guide on how to flash the firmware to a new SDU PCB. A list of the necessary tools will also be appreciated.
Pointers to any existing posts/threads will be appreciated.

I have a couple of SDU ...