Ardiuno Rpi integration

[Giridharbabu123]

Python(Rpi4)

import serial

# Replace with your Arduino's serial port (check device manager)
arduino_port = '/dev/ttyUSB0'  # Linux/macOS
# arduino_port = 'COM3'        # Windows (replace with actual port)

# Baud rate (needs to match Arduino code)
baud_rate = 9600

# Create serial connection
try:
  ser = serial.Serial(arduino_port, baud_rate)
  print("Connected to Arduino on", arduino_port)
except serial.SerialException as e:
  print("Error connecting to Arduino:", e)
  exit()

# Define key mapping (modify as needed)
key_map = {
  'w': 'U',  # Up
  's': 'D',  # Down
  'a': 'L',  # Left
  'd': 'R'   # Right
}

while True:
  # Get key press (non-blocking to avoid waiting for key)
  key = input("Press a key (w, s, a, d, or q to quit): ", timeout=0)

  # Check if a key is pressed and handle commands
  if key in key_map:
    command = key_map[key]
    print("Sending command:", command)
    ser.write(command.encode())  # Encode to bytes for serial transmission
  elif key == 'q':
    print("Exiting...")
    ser.close()
    break  # Exit the loop

print("Program terminated.")

CPP (for Ardiuno)

// Define motor control pins
const int motorPin1 = 3; // Motor pin 1
const int motorPin2 = 4; // Motor pin 2

void setup() {
  // Set motor control pins as outputs
  pinMode(motorPin1, OUTPUT);
  pinMode(motorPin2, OUTPUT);

  // Start serial communication at 9600 baud rate
  Serial.begin(9600);
}

void loop() {
  // Check if data is available to read
  if (Serial.available() > 0) {
    char command = [Serial.read](https://serial.read/)(); // Read the incoming byte

    // Check the command and control the motor direction
    if (command == 'U') {
      digitalWrite(motorPin1, HIGH); // Set motorPin1 HIGH to move forward
      digitalWrite(motorPin2, LOW);  // Set motorPin2 LOW
    } else if (command == 'W') {
      digitalWrite(motorPin1, LOW);  // Set motorPin1 LOW to move backward
      digitalWrite(motorPin2, HIGH); // Set motorPin2 HIGH
    } else {
      // Stop the motor if any other character is received
      digitalWrite(motorPin1, LOW); 
      digitalWrite(motorPin2, LOW);
    }
  }
}