PIC16F84A Thermometer

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Introduction: PIC16F84A Thermometer

This is simple thermometer with just few components.
The brain is PIC16F84A and sensor is DS18B20
Range of sensor is -55 to 125°C is possible if ONLY the sensor is in that area not the whole device!
The schematic and other stuf to make this thermometer you can find on my blog:

maco PIC Projects

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    33 Comments

    please. killahill13@gmail.com

    Hi, I'm trying to build this, but because the lack of some information regarding translation I'm not able to mount this circuit. I think my problem is from the ds18B20 to the 0.1uf capacitor and the battery... When I put 5v through the circuit, my 4x 7led display goes on, but nothing happens.... They are all on 0000... Can somebody help me please?

    is there an asm file of this with english comment?not other languages?coz i cant understand the program...

    google translator works fine,shall I translate it for you?

    I also made a handheld version of it with cr2032 cell,skipping the resistors of display to give them just enough charge.

    DSCF1761.JPG

    I made one too just like you'r one-
    http://www.youtube.com/watch?v=G-pACEhACZw

    DSCF1304.JPG

    Good job suraj.

    What does those two arrows represent? General male contact

    had a hard time figuring out russian schematic
    those arrows are representing that those are connected to ic.
    will upload a schematic soon
    and also show pics of my version