CANBoard_FW

CANBoard is a simple CAN enabled IO board, specifically designed to be used in devices like steering wheels/button boxes/panels/etc.

Versions

Current software versions used:

Create a low cost device that my friends and I can use in our project cars
Use components that are easily soldered by hand (hence 0805) and are preferably from my stock of frequently used parts (ex: LD1117S33CTR)
Share my work with others for reference, inspiration or collaboration.

If this project does help you in any way, I'd appreciate a message!

This is a personal hobby project. I am not a professional. Use at your own risk.

Currently configured as 500 Kbps only

Messages sent from the CANBoard

The BASE_ID is set using the 1 and 2 solder jumpers, see CANBoard hardware for more info

Message Format

Analog Inputs : millivolt readings
STM32 Temperature : Temperature in celsius as reported by STM32
Rotary : Position of a rotary switch wired to each analog input
- Needs work on scaling for different numbers of positions
Digital Inputs : Bits representing the state of each switch input
Analog/Dig Inputs : Bits representing the analog inputs used as digital inputs
- Value over half scale (2.5V) the input is true (1)
Output States : Bits representing the digital output states
Heartbeat : Value incremented every transmit (uint8_t)

Messages sent to the CANBoard

Message Format Outputs