: Measures distance by bouncing sound waves off objects. Use these for robot obstacle avoidance or liquid level monitoring. 2. Environmental
: Detects motion by measuring changes in infrared radiation. Ideal for security lights or alarms. sensor
Sensors act as the "eyes and ears" of electronic systems, converting physical phenomena—like heat, light, or movement—into measurable signals. This guide covers how they work, the major types available, and how to choose the right one for your project. 🛠️ How Sensors Work : Measures distance by bouncing sound waves off objects
: The data is sent to a controller (like an Arduino or Raspberry Pi) via an analog voltage or digital protocol. 📡 Common Types of Sensors 1. Motion and Proximity converting physical phenomena—like heat