In this code, python code sends a command "LED_ON" over the serial port which will be ready by the Arduino board and glows a LED for some time and then turns OFF.
Below is the python code to generate "LED_ON" command:
import serial
import time
ser = serial.Serial('COM7', 9600) # Change COM port as needed
time.sleep(2) # Wait for Arduino to reset
ser.write(b'LED_ON\n') # Send command
response = ser.readline().decode().strip()
print("Response from Arduino:", response)
ser.close()
Below is the Arduino code to read data over serial port and glow a LED:
#define PIN 13
void setup() {
Serial.begin(9600);
pinMode(PIN,OUTPUT);
}
void loop() {
if (Serial.available()) {
String command = Serial.readStringUntil('\n');
if (command == "LED_ON") {
Serial.println("LED turned on");
digitalWrite(PIN,HIGH);
delay(10000);
digitalWrite(PIN,LOW);
}
}
}