ESP32 Smart Room: Motion, Light and Temperature Explained
Build an ESP32 smart-room prototype with PIR motion, an LDR and DS18B20 temperature sensing. Includes wiring, MicroPython code and calibration.
Tag: sensors
📡 What is the HC-SR04?
The HC-SR04 is an ultrasonic distance sensor that measures the distance to objects using high-frequency sound waves (ultrasound). Think of it as a bat-like echo …
DHT22 (AM2302) – Advanced Temperature & Humidity Sensor 🔥
The DHT22, also known as AM2302, is an upgraded version of the DHT11 sensor, providing better accuracy, a wider range, and more reliability. It’s a …
Accuracy and DHT11
The DHT11 sensor is a basic temperature and humidity sensor, but its accuracy is relatively low compared to more advanced sensors like the DHT22 (AM2302) …
DHT11: Temperature and Humidity Sensor Explained
The DHT11 is a low-cost digital temperature and humidity sensor that is widely used in weather monitoring, home automation, and IoT applications. It provides real-time …