Arduino KY-004 Button Module — Wiring, Pinout & Code
The KY-004 is a tactile push-button module found in 37-in-1 and similar Arduino sensor kits (Keyes, ELEGOO, Sunfounder, and others). It’s a simple key switch module — press…
Tag: arduino
How to Interface an HC-SR04 Ultrasonic Sensor and 0.91″ OLED Display with Arduino Nano
Integrating distance sensing with visual output is a fundamental building block for robotics, obstacle-avoidance systems, and real-time monitoring devices. In this guide, you will…
Connecting Multiple Moisture sensor to Arduino Board with Code | Soil moisture sensor with Arduino with code
Parts Needed Code Explanation Interface moisture sensor with an Arduino board.First, the code defines a constant sensor with a value of A0. A0 is…
Arduino Temperature Monitor with DHT11 and Serial Plotter
Numbers in a serial monitor are fine, but a live graph is better. In this tutorial you will wire a DHT11 temperature-and-humidity sensor to…
Controlling a Servo Motor with Arduino
Servos are the easiest way to add precise motion to an Arduino project. Unlike a plain DC motor that just spins, a hobby servo…
Arduino Ultrasonic Distance Meter with HC-SR04
Want your Arduino to sense the world without touching it? The HC-SR04 ultrasonic sensor measures distances from about 2 cm to 400 cm using sound —…