In this tutorial, you'll learn how LM35 works, how to interface it with Arduino and ESP32, and how to build two practical projects — a basic temperature reader and an IoT-based web server display. It's popular among electronics enthusiasts for its simplicity, accuracy, and ease of use with microcontrollers like Arduino and ESP32. Or you can buy the following kits: Disclosure: Some of the links in this section are Amazon affiliate links, meaning we may earn a commission at no additional cost to. LM35 temperature sensor has three pins: OUT pin: signal pin gives the output voltage that is linearly proportional to the temperature, should be connected to a analog pin on Arduino. The LM35 outputs the voltage linearly proportional to the Centigrade temperature. How to program Raspberry Pi to get the temperature from LM35 sensor. In this tutorial, you'll learn how.
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