The ultrasonic distance sensor (HC-SR04) is a widely used electronic component for non-contact distance measurement. It operates on the principle of echo-ranging, where it emits an ultrasonic pulse ...

The Arduino Uno is powered by the ATmega328P, an 8-bit microcontroller that runs at 16 MHz. It has 32 KB of flash memory, 2 KB of SRAM, and 1 KB of EEPROM. The board has 14 digital I/O pins (of which ...

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 sensor continuously sends out infrared light and measures how much of that light is reflected. When a reflective object is within its set detection range, it returns a low signal. The Arduino ...

Abstract: Target/object detection, recognition, position, movement speed, etc. is easy when the object is near or easily visible. But, the same doesn't stand true especially when the object is far or ...

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 ...

Abstract: Traffic congestion remains a widespread issue, often stemming from inefficient signal timing, weak enforcement, and poor traffic management. Traditional traffic lights follow fixed timers, ...