Arduino library for MCP2515, it's available for most of theArduino boards, we test it with Arduino UNO, Leonardo, Mega as well as Zero.
With this library, you can,
You can install it similiar to any other Arduino libraries, using the Library Manager or from a Zip file in the Arduino IDE.
Install using the Library Manager
Install from a Zip file
You can also read how to install mcp_canbus library for a reference.
#include <mcp_canbus.h>
here are many examples implemented in this library. One of the examples is below. You can find other examples here
/* send a frame from can bus
support@longan-labs.cc
CAN Baudrate,
#define CAN_5KBPS 1
#define CAN_10KBPS 2
#define CAN_20KBPS 3
#define CAN_25KBPS 4
#define CAN_31K25BPS 5
#define CAN_33KBPS 6
#define CAN_40KBPS 7
#define CAN_50KBPS 8
#define CAN_80KBPS 9
#define CAN_83K3BPS 10
#define CAN_95KBPS 11
#define CAN_100KBPS 12
#define CAN_125KBPS 13
#define CAN_200KBPS 14
#define CAN_250KBPS 15
#define CAN_500KBPS 16
#define CAN_666KBPS 17
#define CAN_1000KBPS 18
CANBed V1: https://www.longan-labs.cc/1030008.html
CANBed M0: https://www.longan-labs.cc/1030014.html
CAN Bus Shield: https://www.longan-labs.cc/1030016.html
OBD-II CAN Bus GPS Dev Kit: https://www.longan-labs.cc/1030003.html
*/
#include <mcp_canbus.h>
#include <SPI.h>
const int SPI_CS_PIN = 17; // CANBed V1
// const int SPI_CS_PIN = 3; // CANBed M0
// const int SPI_CS_PIN = 9; // CAN Bus Shield
MCP_CAN CAN(SPI_CS_PIN); // Set CS pin
void setup()
{
Serial.begin(115200);
while(!Serial);
// below code need for OBD-II GPS Dev Kit
// pinMode(A3, OUTPUT);
// digitalWrite(A3, HIGH);
while (CAN_OK != CAN.begin(CAN_500KBPS)) // init can bus : baudrate = 500k
{
Serial.println("CAN BUS FAIL!");
delay(100);
}
Serial.println("CAN BUS OK!");
}
unsigned char stmp[8] = {0, 1, 2, 3, 4, 5, 6, 7};
void loop()
{
CAN.sendMsgBuf(0x00, 0, 8, stmp);
delay(100); // send data per 100ms
}
// END FILE
If you need a Dev board, plese try,
If you have any question, please feel free to contact support@longan-labs.cc