RTD.ino

#include <mcp_can.h>
#include <SPI.h>
#define LED 2
#define BUTTON 3

long unsigned rxId;
unsigned char len;
byte rxBuf[8];

MCP_CAN CAN0(10);   // Set CS to pin 10

int main (){
  init();

  Serial.begin(115200);
  if (CAN0.begin(MCP_STDEXT, CAN_1000KBPS, MCP_8MHZ) == CAN_OK)
    Serial.println("MCP2515 Initialized Successfully!");
  else
    Serial.println("Error Initializing MCP2515...");

  CAN0.init_Mask(0,1,0x000FFFFF);                // Init first mask...
  CAN0.init_Filt(0,1,0x000F1901);                // Init first filter...
  CAN0.init_Filt(1,1,0x000F1901);                // Init second filter...

  
  CAN0.init_Mask(1,1,0x000FFFFF);                // Init second mask...
  CAN0.init_Filt(2,1,0x000F1906);                // Init third filter...
  CAN0.init_Filt(3,1,0x000F1906);                // Init fourth filter...
  CAN0.init_Filt(4,1,0x000F1906);                // Init fifth filter...
  CAN0.init_Filt(5,1,0x000F1906);                // Init sixth filter...

  CAN0.setMode(MCP_NORMAL);

  pinMode(LED, OUTPUT);
  pinMode(BUTTON, INPUT_PULLUP);

  while (1){
    if (CAN0.readMsgBuf(&rxId, &len, rxBuf)== CAN_OK){
      if((rxId & 0xFFFFF) == 0xF1901){
        Serial.println("TS error");
        exit(0);
        }
      if(((rxId & 0xFFFFF) == 0xF1906) && (digitalRead(BUTTON) == 0)){
        //Turn on LED   
        digitalWrite(LED, HIGH);
        delay(2000);
        //Turn off LED   
        digitalWrite(LED, LOW);
        exit(0);
        }
     }
    }
 }