Introduction The HC-SR04 Ultrasonic Sensor is widely used for distance measurement in robotics, automation, and obstacle detection projects. It works by sending out ultrasonic waves and measuring the time it
Hot Posts3- Page
Introduction A trimmer potentiometer is a small adjustable resistor used to vary voltage levels in a circuit. The ESP8266 has an ADC pin (A0) that can read the voltage from
Introduction The HC-SR501 PIR (Passive Infrared) Motion Sensor is one of the most widely used sensors for detecting human and animal movement. It works by detecting changes in infrared radiation
Introduction A Capacitive Soil Moisture Sensor is an advanced version of the traditional resistive soil moisture sensor. Unlike resistive sensors, which corrode easily due to direct exposure to water and
Introduction The 1602 LCD is a 16×2 character display commonly used in electronics projects. Normally, it requires 16 pins for operation, which makes wiring complex. By using an I2C module
Introduction The ESP8266 does not have a true analog output, but it uses PWM (Pulse Width Modulation) to simulate it. With PWM, you can adjust the LED brightness smoothly instead
Introduction The MQ-2 Gas Sensor is one of the most popular sensors for detecting gases like LPG, propane, methane, hydrogen, alcohol, and smoke. It works on the principle of resistance
Introduction The DHT11 and DHT22 are widely used sensors to measure temperature and humidity. In this tutorial, you’ll learn how to: Introduction The DHT11 and DHT22 are widely used sensors
Introduction The DHT11 is a low-cost digital sensor that measures temperature and humidity. It’s easy to use, but less accurate compared to the DHT22. It communicates with the ESP32 using
Introduction Buzzers are small devices that produce sound. They are often used in alarms, timers, and notification systems. With ESP8266, you can control buzzers to create beeps, tones, and even
