Introduction The SG90 servo motor is a lightweight and low-cost motor commonly used in robotics, IoT, and automation projects. Unlike DC motors, which rotate continuously, a servo motor can be
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Introduction The NEO-6M GPS module is a powerful, low-cost GPS receiver that allows your ESP32 projects to access real-time location data, including latitude, longitude, altitude, and time. GPS technology is
Introduction The HC-SR501 PIR (Passive Infrared) sensor is used to detect motion by sensing infrared radiation from objects, mainly humans and animals. It’s widely used in security systems, automatic lights,
Introduction A relay module is an electrically operated switch that allows your ESP32 to control high-voltage or high-current devices like lights, fans, motors, and other home appliances. Since the ESP32
Introduction The DS18B20 is a digital temperature sensor that provides highly accurate temperature readings over a range of -55°C to +125°C. Unlike analog sensors, it communicates over the OneWire protocol,
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
Introduction The Capacitive Soil Moisture Sensor is widely used in smart farming and gardening projects. Unlike the resistive type, it does not corrode easily, making it more durable for long-term
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 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 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
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