Hardware Requirements Arduino Board (e.g., Uno, Nano, or compatible) 16x2 LCD Display (HD44780 compatible, with I2C module or direct pins) 4x4 Matrix Keypad HC-SR04 Ultrasonic Sensor Piezo Buzzer 1x ...

As we all know, wearing a helmet is mandatory in most countries, including India while driving a vehicle, not just because of police fines but to save our own lives. Since it holds such an important ...

This circuit diagram illustrates a fire and smoke detection system using an Arduino UNO R4 WiFi, MQ2 smoke sensor, and a flame sensor (fire sensor). The Arduino is the central controller that receives ...

A research team led by Prof. Wang Long from the Ningbo Institute of Materials Technology and Engineering (NIMTE) of the ...

This $35 pack of two Mr. Beams Wireless Motion-Sensing LED Spotlights is on sale at Amazon for $19, which is an amazing ...

This affordable little device does double duty by controlling your smart lights hands-free and offering peace of mind while ...

Near my childhood home was a small river. It wasn’t much more than a creek at the best of times, and in dry summers it would sometimes almost dry up completely. But snowmelt revived it each S… ...

Instead of using a potentiometer or even hall effect sensor as you might expect from a joystick, the space mouse contained a set of six LEDs and light meters. The sensing array came nestled inside ...

Connect the LED to PWM pin (e.g., D9) through a resistor. Connect the middle pin of the potentiometer to A0. Connect the other two potentiometer pins to 5V and GND. The potentiometer sends an analog ...

Adafruit has recently released the Adafruit Sparkle Motion Stick, a compact, WLED-friendly Neopixel USB controller board built around an ESP32-S3 Module designed for audio-reactive LED projects, ...