Designed a real-time LPG leakage detection system using an MQ-5 sensor and Arduino UNO. The system monitors gas levels and sends SMS/calls via a GSM module. Integrated a servo motor for automatic gas ...

Using an Arduino Nano, ultrasonic sensor, and buzzer, it can sense objects in their way and provide ... HIGH); // Provide 5V power digitalWrite(gndPin, LOW); // Connect GND to 0V // Ensure all signals ...

Enables autonomous driving of a 2 or 4 wheel car with an Arduino and a Adafruit Motor Shield V2. To avoid obstacles a HC-SR04 Ultrasonic sensor mounted on a SG90 Servo continuously scans the area.