Hi friends, today we will see how to make temperature indicator using PIC microcontroller. The basic aim of this project is to make you familiar with PIC microcontroller. It also explains how LM35 and 7 segment displays can be interfaced with PIC microcontroller.
Following is a list of components required for temperature indicator using PIC microcontroller – mini project:
- PIC microcontroller (PIC16F676)
- 4 digit (or 3digit) seven segment display (Common cathode)
- Temperature sensor (LM35) IC
- 5V DC power supply
The following figure shows a circuit diagram of temperature indicator using PIC microcontroller.
In this mini project, we have used PIC microcontroller and a four digit seven segment display is interfaced with it. For sensing the surrounding temperature we have used a temperature sensing IC i.e. LM35. You can use a voltmeter to crosscheck whether the indicator giving correct output or not. The output of the temperature in terms of volts will be in the range of mV.
Working of LM35
LM35 is an integrated temperature sensor. It produces an output voltage proportional to the temperature. The advantage of using LM35 is that it does not require any external calibration technique and it has an accuracy of ±0.4 degree Celsius at room temperature. It draws the only 60µA from supply and possesses low self-heating. Thus the chances of error get minimized.
Click here to download the project content. It consists of C program, Proteus design, HEX file for PIC microcontroller and circuit diagram.
You may also like
- Temperature controlled DC fan using thermistor
- Digital clock using 8051 microcontroller and LCD display
- Digital Thermometer using 8051 microcontroller – mini project
- Digital stopwatch using 8051 microcontroller
- Digital Voltmeter using 8051 microcontroller – Mini-Project
If you like this article, please share it with your friends and like or facebook page for future updates. Subscribe to our newsletter to get notifications about our updates via email. If you have any queries, feel free to ask in the comments section below. Have a nice day!