Electronics Guides & Tutorials

HC-SR04 ultrasonic distance sensor for Arduino
HC-SR04 Ultrasonic Sensor with Arduino: Wiring and Code
Connect an HC-SR04 ultrasonic sensor to an Arduino Uno with this wiring table, ready-to-use code and troubleshooting tips. Read more...
DHT22 digital temperature and humidity sensor module
DHT11 vs DHT22 vs DS18B20: Choosing a Temperature Sensor
Compare the DHT11, DHT22 and DS18B20 on range, accuracy and wiring so you can pick the right temperature sensor for your Arduino project. Read more...
ESP32 WROOM Wi-Fi and Bluetooth development board
ESP32 vs ESP8266: Which Board Should You Buy?
ESP32 or ESP8266? Compare speed, Bluetooth, pins and analog inputs, then choose the right Wi-Fi board for your IoT project. Read more...