MPU6050 Arduino Spirit Level: DIY Digital Level With OLED Display
Introduction In construction, carpentry, photography, and robotics, ensuring a surface is perfectly level is critical. Traditional bubble spirit levels have been used for centuries,…
Tag: sensor
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…
Op-Amp Basics: Build a Light Sensor Amplifier
An LDR (light-dependent resistor) in a divider gives you a voltage that wanders maybe a volt between shadow and sunlight. Feed that to a…
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 —…