The Hypersensitive Digital Thermometer

Want to have a hypersensitive digital thermometer, but you have no idea where to start? Well, then you should spare few minutes and read on this article…

Nowadays, it’s quite easy to build an inexpensive and accurate digital thermometer. With the easy availability of digital multimeters and integrated circuit temperature sensors, it makes the whole process even easier than before!


For your information, you’re about to build a digital thermometer that based on PIC16F877 microcontroller, alongside with the temperature sensor LM35DZ and MAX232 IC. You can view the temperature measurements on a computer program, where it can monitor the state of COM ports of a PC.

The sample measurement data that have been received through COM2, is being viewed on the “Serial Watcher” program, as shown on below figure:


The 8051 development board is the top choice for this project, because it provides an easy-to-use and low-cost way to develop your 8051 based microcontroller project. All of the great equipments, such as IC programmers or emulators have been included on the board. This means, with this 8051 development board, all of the code can be written simply to communicate with the PC through the serial port without any further modification at all!

Lastly, I hope you all will have some serious fun with it.

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  1. could you have made that circuit any messier? or was that your aim? for A Level Electronics you’ve failed…

  2. Hello , .. Have a good day …

    I’m interested in this project , Can you please send me the diagram or sketch for connecting the components and a list for the required components ?

    Sincerely , …

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