An Arduino-based autonomous robot that detects obstacles using an HC-SR04 ultrasonic sensor and avoids them by automatically changing direction. IN1 Digital Pin 2 Motor A input 1 IN2 Digital Pin 3 ...
This is an Arduino-based Proximity Sensor circuit wired using the popular HC-SR04 Ultrasonic ranging module,used here for non-contact object detection purpose. The HC-SR04 module includes ultrasonic ...
The Smart SMS Alert System using Seeed Studio Xiao ESP32 is one of the compact IoT projects that uses an HC-SR04 ultrasonic sensor to detect nearby movement. The system acts like a motion detector ...
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