The LM35 is a simple and precise analog temperature sensor that outputs a voltage directly proportional to temperature in degrees Celsius. It’s ideal for measuring temperature accurately with a simple setup. In this tutorial, you will learn how to connect a LM35 temperature sensor to an Arduino and read the temperature data precisely. You will … Read more ➯
Do you ever think about how automatic taps give water when you put your hand beneath them or the magic of smart bulbs that illuminate a room the moment someone enters? In many of these instances, a PIR sensor is the magic behind the scenes. In this tutorial, you will learn how a PIR motion … Read more ➯
The thermistor is basically a thermal resistor. That means its resistance changes according to the change in temperature of the environment. We can use a thermistor to measure the temperature of the environment. If you want simple, inexpensive, and accurate components to get the temperature data for your project thermistor would be a good choice. … Read more ➯
Light Dependent Resistor or LDR is basically a photoresistor. That means its resistance is dependent on the amount of light it gets. We can use an LDR to detect the light level of the environment. If you want a cheap solution to detect day and night LDR would be a good choice. In this tutorial, … Read more ➯
The DHT11 sensor can measure temperature and humidity in the air. It gives pre-calibrated digital output, so you can interface with any microcontroller like Arduino, ESP32, Raspberry Pi, etc. You can easily use this sensor in your weather monitoring system or home automation system. In this tutorial, I will build a small circuit to interface … Read more ➯
Ultrasonic is a great sensor when it comes to measuring the distance to an object. Ultrasonic sensors are based on measuring the properties of sound waves. It has a transmitter/trigger to generate a sound pulse and a receiver to receive an echo pulse coming from the targeted object. By calculating the traveling time of the … Read more ➯
