Heat Sensor Circuit Using Lm35

We can use any type of arduino board.

Heat sensor circuit using lm35.

In this project we interfaced lm35 temperature sensor with arduino to design a digital thermometer. Lm35 temperature sensor equivalent. Digital thermometer using arduino lm35 temperature sensor. It can activate or deactivate any kind of device by observing a temperature.

In this circuit aurdino is the main component because it controls all functions. As you can see i have used a 5v relay module in the project. It is a small and cheap ic which can be used to measure temperature anywhere between 55 c to 150 c. Related project using lm35.

Lm35dz is capable of reading the temperature in centigrade scale. Digital temperature sensor circuit. The lm35 is a low voltage ic which uses approximately 5vdc of power. The following image shows the circuit diagram of a simple temperature controlled switch using lm35 temperature sensor lm358 op amp and a 5v relay module.

The measured temperature will be directly displayed on a 16 2 lcd. Lm35 is a precession integrated circuit temperature sensor whose output voltage varies based on the temperature around it. Components needed to build the lm35 temperature sensor circuit. This is ideal because the arduino s power pin gives out 5v of power.

In this circuit lm35 senses the temperature and converts into an electoral analog signal then this signal applied to microelectronic unit through an analog to digital converter adc. 3 and this is the reason you can power lm35 using any voltage between 4 to 20v. Here is a instructable to waterproof a lm35 for use on a tethered rov using a automobile 12v battery as a power source. If temperature goes beyond a particular level 50 degree in this circuit then red led will glow automatically otherwise yellow led remains on below that particular temperature.

The lm35 series are precision integrated circuit temperature sensors who. Now let s see how to interface temperature sensor with arduino to print the surrounding temperature on serial monitor of arduino ide. Its another application is a fire alarm circuit. Circuit diagram of temperature controlled switch.

Lm35 temperature sensor ic. This came out of a need for the mate rov competition. Today we are building a simple yet very useful circuit using temperature sensor lm35 in this circuit we are going to control the leds according to temperature around. How to use lm35 temperature sensor.

Usb with type a and b connectors. Lm34 ds18b20 ds1620 lm94022. 5 circuit connections of temperature measurement using lm35 with arduino. Waterproof a lm35 temperature sensor.

So in this tutorial we will design a simple temperature sensor circuit using the lm35 ic. The temperature sensor is very useful in different ways. In this example i am going to show you how to make a heat sensor on breadboard.