רכיבי תקשורת תעשייתיים - מדריך מקיף

#include <SoftwareSerial.h>

SoftwareSerial RS485(2, 3); // RX, TX
const int DE_PIN = 4;       // Driver Enable

void setup() {
  Serial.begin(9600);
  RS485.begin(9600);
  pinMode(DE_PIN, OUTPUT);
}

void sendData(String message) {
  digitalWrite(DE_PIN, HIGH);  // הפעל שידור
  delay(1);
  RS485.println(message);
  delay(1);
  digitalWrite(DE_PIN, LOW);   // כבה שידור
}

void loop() {
  if (RS485.available()) {
    String received = RS485.readString();
    Serial.println("התקבל: " + received);
  }
  
  if (Serial.available()) {
    String toSend = Serial.readString();
    sendData(toSend);
  }
}
                

#include <SPI.h>
#include <mcp2515.h>

struct can_frame canMsg;
MCP2515 mcp2515(10); // CS pin

void setup() {
  Serial.begin(115200);
  SPI.begin();
  
  mcp2515.reset();
  mcp2515.setBitrate(CAN_500KBPS, MCP_8MHZ);
  mcp2515.setNormalMode();
  
  Serial.println("CAN מוכן!");
}

void loop() {
  if (mcp2515.readMessage(&canMsg) == MCP2515::ERROR_OK) {
    Serial.print("ID: 0x");
    Serial.print(canMsg.can_id, HEX);
    Serial.print(" Data: ");
    
    for (int i = 0; i < canMsg.can_dlc; i++) {
      Serial.print(canMsg.data[i], HEX);
      Serial.print(" ");
    }
    Serial.println();
  }
}