Introduction

The LM35 series square measure exactness integrated-circuit temperature devices with associate degree output voltage linearly proportional to the Centigrade temperature. LM35 is a 3 terminal linear temperature detector from National Semiconductors. It will live temperature from -55 degree Centigrade to +150 degree Centigrade. The voltage output of the LM35 will increase 10mV per degree Centigrade rise in temperature. LM35 will be operated from a 5V offer and also the stand by current is a smaller amount than 60uA. The pinout of LM35 is shown within the figure below.

Features

Calibrated Directly in Celsius (Centigrade)

• Operates from 4 V to 30 V.
• Less than 60-μA Current Drain.
• Rated for Full −55°C to 150°C Range.
• Suitable for Remote Applications.
• Low-Cost Due to Wafer-Level Trimming.
• 0.5°C Ensured Accuracy (at 25°C).
• Non-Linearity Only ±¼°C Typical.
• Low-Impedance Output, 0.1 Ω for 1-mA Load.
• Linear + 10-mV/°C Scale Factor.
• Low Self-Heating, 0.08°C in Still Air.

Circuit Schematics

Components needed for this Project

You can get the components from any of the sites below:

  • Arduino Board ……………………………[ Purchase Amazon  |  Aliexpress  ]
  • 330 Ohms Resistors……………….. [ Purchase Amazon  |  Aliexpress  ]
  • Breadboard and Jump Wires ………[ Purchase-  Amazon  |  Aliexpress  ]
  • RGB LED…………………………………… [ Purchase – Amazon  |  Aliexpress   ]
  • LM35 Temperature sensor………………… [ Purchase – Amazon  |  Aliexpress   ]

*Please note: These are affiliate links. I may make a commission if you buy the components through these links. I would appreciate your support in this way!

Source Code

You can watch the following video or read the written tutorial below.