Heat Sensor Circuit Using Lm35

Lm35dz is capable of reading the temperature in centigrade scale.

Heat sensor circuit using lm35.

5 circuit connections of temperature measurement using lm35 with arduino. Lm35 temperature sensor ic. In this circuit aurdino is the main component because it controls all functions. It is a small and cheap ic which can be used to measure temperature anywhere between 55 c to 150 c.

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. You can make a heat sensor using lm35 and arduino. In this project we interfaced lm35 temperature sensor with arduino to design a digital thermometer. Components needed to build the lm35 temperature sensor circuit.

Now let s see how to interface temperature sensor with arduino to print the surrounding temperature on serial monitor of arduino ide. The measured temperature will be directly displayed on a 16 2 lcd. Temperature sensor we are gonna use is lm35. Lm35 temperature sensor equivalent.

Lm34 ds18b20 ds1620 lm94022. Digital temperature sensor circuit. As you can see i have used a 5v relay module in the project. Lm35 is a precession integrated circuit temperature sensor whose output voltage varies based on the temperature around it.

The temperature sensor is very useful in different ways. This is ideal because the arduino s power pin gives out 5v of power. How to use lm35 temperature sensor. Related project using lm35.

Its another application is a fire alarm circuit. 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. Waterproof a lm35 temperature sensor. The lm35 series are precision integrated circuit temperature sensors who.

It can activate or deactivate any kind of device by observing a temperature. Digital thermometer using arduino lm35 temperature sensor. 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. In this example i am going to show you how to make a heat sensor on breadboard.

The lm35 is a low voltage ic which uses approximately 5vdc of power. Circuit diagram of temperature controlled switch. We can use any type of arduino board. Here is a instructable to waterproof a lm35 for use on a tethered rov using a automobile 12v battery as a power source.

3 and this is the reason you can power lm35 using any voltage between 4 to 20v. This came out of a need for the mate rov competition. Usb with type a and b connectors.