here the whole code, running on arduino due PID[AC_ID]=0x20 PID[BH_ID]=0x9C PID[AC_R_ID] =0x61 PID[BH_R_ID]=0xF0 PID[DS_R_ID]=0x80 uint8_t buff[42]=""; void Lin (uint8_t msg[10],uint8_t len) //this manages the serial output to the LIN tranceiver { Serial1.begin(LIN_baud*10/16,SERIAL_8N1);...

Some progress with the locking plate over the weekend. I got parts laser cut to reduce any welding. This will allow me to get everything in place and to test fitment before welding. The bracket that will sit on the sub-frame is also adjustable as I've yet to pull the engine. I got one of the invert...

I don't know why, but parts of the program disappear when uploaded to the forum!? i can not write an "i" in "[]" how it should be behind "data" and "pdata" it is correct, i only use the standard uart connected to a LIN transceiver. (TJA1021) I saw that commen...

here is my code again to determine the checksum and how to send for arduino. The compressor can be tested individually at low speed for a short time if it is not completely dry. There must be more than 200V. " void Lin (uint8_t msg[10],uint8_t len) { Serial1.begin(LIN_baud*10/16,SERIAL_8N1); S...

When you send "activate" it wakes up the compressor/inverter and it starts sending data like RPM, VOLTAGE, AMPS, ERRORS. You need to send activate, then the "Start" to tell the compressor to get the motor spinning. if you get the RPM value you want and divide by 50 will give you...

If you want to only send start it's byte1= 0x01; If you want to only activate it's 0x04; If you want to combo it's 0x05; Now what and when is up for you to test. I think start needs to be high and activate sets the new speed. Ok that makes sense which bytes to send for which now whets the differenc...

my question is what is start and what is activate ? Only the writer of the text knows... But i think both need to be one. First start and in the second message you set activate too. what binary goes in the bits ? 0 or 1s Both but often when the assignation needs to be activated it's done with a 1. ...

A byte = 8 bits always. Bits not in use = 0 / reset. Bits in use and active a 1. So to start do: byte 1 |= 1; //bit 0 To activate Byte 1 |= 4; // bit 2 For the checksum I recommend finding a sketch with an example. thank you for your comment. i do know how to write code and i did write and modified...

I managed to get my VW / Audi air conditioning compressor running today. It works with a nominal 352V and is controlled with a LIN bus. So far I haven't read much about the LIN bus here. But it's easier than CAN. There is a master (my controller) that sends headers, followed by 2 to 8 bytes of data...

SO its been about a week since my last update. i accepted that my charger is dead so i bought another one of ebay. delivered and when i opened it up it came from a flooded car. Damn. i trusted the conformal coating (the alien Goo) from tesla so i cleaned thoroughly with ISo Alcohol. i plugged my log...

Another Update,

There is NO Can traffic or what so ever on the lines.

neither when enabled nor when disabled.

maybe I'm measuring CAN traffic wrong ? time for a new Oscilloscope with built in CAN traffic decoder.

any ideas or suggestions ?

thanks,
Karim

Well i too think your best bet would be to see if your CAN modules are working. Each module needs; - 12V power - GND - 3V3 alive signal - enable open colector signal - CAN traffic So if you confirm all the digital signals you can measure via multimeter then all you need to test are CAN bus lines. w...

I advise you to load the stm arduino code that was ported from DUE just because you can connect to USB easier than reading CAN for which you would require CAN tools.. https://github.com/damienmaguire/Tesla-Charger/tree/master/V5/Software/Binary You can load it via ST Link tool. Much info is on wiki...

A quick Update, Bad One :) @arber333 @johu so i went in and open the charger and put it in manual mode without AC or HV DC connected. just 12 v and enable signal. as expected the red LED on the Modules , Module 2 was solid and of course the web interface reporting module 2 data. Module 1 and 3 which...

Ok Just a different update. i went back to the garage and kept fiddling with the parameters. it turns out that timdely needs to have a different number other than the default -1. i Put 1 and now the charger start charging. only a completely different issue pops Up. only charger 2 is enabled/ working...

I've been promising to publish the firmware on github but still haven't gotten round to it. You can find sources on my patreon or just use these unlocked bins HI Johannes, i got a situation and im not sure what is wrong. so I got the board fixed and loaded the firmware. the one from Patreon. and tr...

tnx I just found out my charger lost coolant somehow and effect is it just cuts out in regular intervals. Its annoying as my car doesnt get charged! I need to find the micro leak as there is no sign of any coolant pool under the car? What is interesting is that inverter and motor share the same coo...

Oh boy that is funny! I live in one of the wettest places in North America, a coastal town on the west coast for Vancouver island. We are a lot of rain. Every design decision is “ how will water enter and will it pool? Leak? Drip? How will condensation vent? proper Orientation can solve most of the...

I tried to weld alu casing so it can accept regular cable inlets. https://leafdriveblog.wordpress.com/2022/07/19/tesla-10kw-charger/ that is pretty dope work, unfortunately i cant deviate much from my original design and sealant solution, the wires and cable are already embedded in the car and buil...

did you conformally coat the board? all boards should be. what is funny is i didn't coat the board but for the irony i started working as an electrical/mechanical engineer in a conformal coating company. i just sealed the charger with silcon and made it pretty much proof, only around the AC/ DC big...

Charlie, Glad to hear your conversion is going great, mine is OK As well except couple of hiccups due to the insane rain we got here in San Diego. I've done about 1000 Miles on the car so far., yes i was commuting to work in it about 60 miles a day. up until last week was driving the car but i blew ...

Hi Johannes,

Thanks for your prompt replay and files.

i subscribed to the Patreon as well just why not

thanks again will report back what's new.

Karim

HI Guys, long story short, My Classic E beetle while moving Houses over the holidays was parked outside he garage for 12 days in un usual heavy rain for San Diego. I did my best isolating and water proofing the charger with silicon and things which had worked great for about 6 months. unfortunate so...

yea I'm downloading Design spark and will see whats going on the schematic

thanks again

royhen99 wrote: ↑Tue Dec 20, 2022 6:52 pm The board was designed with DesignSpark.

Thanks Royhen, will download and open it up.

any idea about the other two questions ?