Switched CAN Interface
A CAN Bus interface with power supply. Designed to enable adding various devices to a vehicle's CAN bus or through the OBD port.
The power supply can be configured for automatic or remote control. In automatic operation it will turn on when the vehicle voltage rises above 13.2V and turn-off when the vehicle voltage falls below 13V. This allows the attached device to turn on when the vehicle is on (alternator or DC-DC converter running) and turn off when the vehicle is off (12V battery voltage).
Schematic, gerbers and BOM in the GitHub repo.
- Uses TJA1050 Serial to CAN transceiver for easy connection to micro-controllers such as the ESP32 or STM32.
- Power supply supplies 5V at up to 500mA.
- ESD Protection.
The power supply can be configured for automatic or remote control. In automatic operation it will turn on when the vehicle voltage rises above 13.2V and turn-off when the vehicle voltage falls below 13V. This allows the attached device to turn on when the vehicle is on (alternator or DC-DC converter running) and turn off when the vehicle is off (12V battery voltage).
Schematic, gerbers and BOM in the GitHub repo.
