Esp32 Projects

ESP32 LM35 Temperature Sensor

LM35 Sensor Interfacing With ESP32 Board


In this Article, we interface the LM35 Sensor with the ESP32 Board And Display the Reading in the serial monitor,16×2 LCD Display And Oled Display.

LM35 is an anloag sensor and measures the temperature in the ESP32 Board we Connect the sensor to Pin Number D32.LM35 Sensor has 3 terminals available. The first one is VCC, the middle one is a Data pin And the third one Is a GND Pin.

lm35 sensor

You Used The LM35 Sensor In Various fields which provides Real-Time data And is also suitable for all microcontrollers.

Guide For How You Install ESP32 Board  In Arduino IDE software.


Bill Of Materials




Link To Buy


ESP32 Board



LM35 Sensor









Zero PCB



  • The ESP32 Board Is Integrated with Wi-Fi And Dual-Core, Low Power Bluetooth, Low  Power Consumption, and High performance.
  • ESP32 Is a small board With many pins available To Connect to the input and output Devices.
  • Compared to the Esp8266 Board, so many Analog pins are Available On the ESP32 Board and it Takes Low Power.

ESP32 Baord

The LM35 sensor is a temperature-sensitive element, typically made of a solid-state material such as silicon. This element exhibits a linear change in electrical properties in response to temperature variations.


  • LM35 temperature range is -55 °C To 150 °C
  • The max voltage is = 1500mv
  • The LM35 Sensor is a 10bit ADC and is 1024-bit (0-1023)
  • Let’s calculate Resolution = Vref / Step Size
  • Vref is Arduino Output Voltage = 5v
  • Step Size = 1024

Motion Detection And Temperature Monitoring System Using Arduino6 e1686747242578

Specifications of the LM35 Sensor

  •  -55°C to +150°C Temperature Range.
  • The output voltage has a scale factor of 10 mV/°C.
  • Calibration accuracy of ±0.5°C.
  • 4V to 25V Power Supply Required.
  • 60 µA Current Consumption.
  • The LM35 sensor has low self-heating characteristics.

Circuit Diagram

In this Circuit Diagram, We Connect the LM35 Sensor to Pin D33, VCC To 5V And Gnd Will Connect To the Ground.

LM35 Sensor 1


GitHub e1697076839430

Working Photo

First, we sold the ESP32 Board in a Zero PCB.


Now We check the LM35 Sensor Reading in a Serial Monitor.

ESP32 LM35 Temperature Sensor2

Serial Monitor OUTPUT.

ESP32 LM35 Temperature Sensor1


In this project, we interface the lm35 sensor with the ESP32 board and take readings in a serial monitor.LM35 Sensor measures the temperature.

ESP32 DHT11 Sensor

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Hi, Prateek Here I’m interested in Electronics That's why I Make Soo Many Projects, I’m currently Pursuing M Tech.. if you Relay Like To My Blog Plz Comment Below...Thanks To All Electronics Lover...❤️

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