Do it yourself: CAN BUS speedometer corrector STM32 HAL STM32F407

This is a prototype of CAN speedometer corrector .
github.com/Sve...
CAN GATEWAY
STM32 STM32F407

[@AlexShrugging]

Genius!! How did you build ABS module? I want one with one (1) digital or analog speed sensor input with the ability to adjust ratio parameters.

[@AlexShrugging]

@Alex Sv -Is it possible to manipulate a factory 2007 Dodge Ram ABS 1500 module? reprogram it for speedometer corrector without using a gateway. Purpose: To have more control over the parameters, pulse CAN messages etc.

[@benriefourie115]

Hi. Its awsome. Exactly what I want to do. I am worried why your odo shows 00000km? Did the cluster reset when you unplugged the CANBUS?

[@alexsv1834]

Hi! This was long ago, I don't remember what was the actual odo reading. But! The odo readings stored in car ECU's have nothing to do with a CAN device. A CAN gateway can affect only a current real-time odo calculation. I've added a devboard support in my current main project: github.com/SvetlAl/STM32_LIN_FDCAN_TOOL/tree/master with a user friendly GUI. I hope, this summer I'll publish a manual and video demonstration how to start.

[@jonboast5687]

Hey! I'm trying to load up your code onto my F446re board...and having some issues getting it working... are you able to help? This is exactly what i am trying to do

[@Bersbersbers1980]

Thank you for the video. It is fascinating. Just one question. What do we use speedometer corrector for?

[@alexsv1834]

il gracias strada!!!! Quanto calibra di canto!!!! Cilatte si!!! Ciao Petruccio!!!!

[@makergaragediy]

Could explain how can make a full sniffer with stm32 HAL?

[@alexsv1834]

Hi! I don't think I can do it any time soon. But I've seen a lot of this stuff on Github. You can try searching there.

[@Donato77777]

|Hi i have Hoda Odyssey 2014 rc1 from japan and i need to change speedometer from km to miles how dificult is to install can bus ?

[@alexsv1834]

Hi! I'm not sure, that you can carry out this task over can-bus. This is possible to convert km into ml, but I don't know your dashboard settings. My CR-V of the same age as your Odyssey has speedometer reading in msg id 158 5 and 6 bytes. hope, this could help you

[@mrigankabandyopadhyay8062]

Where you have checked the output, and can u tell me about the circuit connection thanks

[@alexsv1834]

Hi! I'm not using OBD in this example, CAN_H and CAN_L are connected directly to the loom behind a dashboard. By checking the output do you mean printing data on a display? In this video the speedometer shows the changes I've done. Maybe later I'll add an USB - terminal as well

[@mrigankabandyopadhyay8062]

@@alexsv1834 Okay anything idea you can share about OBD as well

[@alexsv1834]

@@mrigankabandyopadhyay8062 what is your project? What are you trying to build with stm32f407?

[@mrigankabandyopadhyay8062]

@@alexsv1834 I need to get information of car connecting with OBD like cooling temp and other properties without ELM327 like you did with STM32F1 i need that for F4 and HAL library

[@alexsv1834]

@@mrigankabandyopadhyay8062 Ok, so you need to use USB periph together with CAN interrupt. Later I'll do it for use with CANHACKER application.

[@mrigankabandyopadhyay8062]

connection with obd