An Arduino library for sending and receiving data using CAN bus.
- Microchip MCP2515 based boards/shields
- Microchip MCP25625 based boards/shields
- Espressif ESP32's built-in SJA1000 compatible CAN controller with an external 3.3V CAN transceiver
| Microchip MCP2515 | Arduino |
|---|---|
| VCC | 5V |
| GND | GND |
| SCK | SCK |
| SO | MISO |
| SI | MOSI |
| CS | 10 |
| INT | 2 |
CS and INT pins can be changed by using CAN.setPins(cs, irq). INT pin is optional, it is only needed for receive callback mode. If INT pin is used, it must be interrupt capable via attachInterrupt(...).
NOTE: Logic level converters must be used for boards MCP2515 which operate at 3.3V. The MCP25625 can run on 3.3V or 5V power, resolving this issue.
Requires an external 3.3V CAN transceiver, such as a TI SN65HVD230.
| CAN transceiver | ESP32 |
|---|---|
| 3V3 | 3V3 |
| GND | GND |
| CTX | 5 |
| CRX | 4 |
CTX and CRX pins can be changed by using CAN.setPins(rx, tx).
As this is a fork of https://github.com/sandeepmistry/arduino-CAN with additional patches, you have to use git to install this version of the library:
cd ~/Documents/Arduino/libraries/ # ~/Arduino/libraries on Mac OS
git clone https://github.com/timurrrr/arduino-CAN CANSee API.md.
See examples folder.
This library is licensed under the MIT Licence.