Well yes i can offer it for sale when i have tested it thoroughly. I intend to use it primarily as Chademo controler as well as a separate BMS control similar to SimpBMS. Price will have to be low, near the 130€s since the ESP32 low value. I hope i can manage that.PaulUdrea wrote: ↑Sat Oct 29, 2022 11:14 pm Hello Arber, great work. Do you intend to sell the controller? From what I read, it should be useful for my conversion. I am at the stage of selecting a charger and a BMS. Finally I’ve got the batteries, Kokam 75Ah (used). Before purchasing the BMS and the charger I want to make sure that all the equipment will work with each other. I would be interested to know if it will be available for purchase.
For now all components are setup for hand assembly as is my phylosophy.
I dont want to fit ESP32 chip directly on to the board since this can create all sorts of headaches with ground loops and wifi etc...
This board for now drives only one CAN transciever. I consider it enough for now. Later i will add another SPI if need be, but i see quite a lot of development to do that. For now the code itself is enough of a challenge .
My BMS plan includes those active JKBMS modules and its 250kbaud CAN output to make a complete system. Zero user involvment into BMS while battery is working properly and very simple UI via WIfI or BT to identify individual cells gone astray. Or just to observe situation.
Buzzer is there to provide audial warning in various cases.
I intend to make use of a simple BMS pulldown pin which would signal stop of (fast) charge and turttle mode in case of low battery.
Will see how that goes... hopefully i will have enough time theese days to develop the code for my VCU to read BMS report. From then on i can learn myself some html programming .
Or i can make a BT app? What do you think would be more convenient?