PIC16F84A Thermometer

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Introduction: PIC16F84A Thermometer

About: My name is marjancho and I love electronics,makeing gadgets,hack and pranks.

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 Discussions

    0
    ErickV1
    ErickV1

    3 years ago

    please. killahill13@gmail.com

    1
    romainhuon514
    romainhuon514

    5 years ago

    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...

    0
    Suraj Grewal
    Suraj Grewal

    Reply 6 years ago on Introduction

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

    0
    Suraj Grewal
    Suraj Grewal

    7 years ago on Introduction

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

    DSCF1761.JPG
    0
    Suraj Grewal
    Suraj Grewal

    7 years ago on Introduction

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

    DSCF1304.JPG
    0
    Suraj Grewal
    Suraj Grewal

    Reply 7 years ago on Introduction

    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

    0
    abtrooper82
    abtrooper82

    10 years ago on Introduction

    link on blog to HEX code does not work, please post here or provide a new link

    Thanks 

    0
    macobt
    macobt

    Reply 10 years ago on Introduction

     I check the link it's OK

    0
    macobt
    macobt

    Reply 10 years ago on Introduction

     If you need any  help,just email me.
    Regards

    0
    geoper2
    geoper2

    10 years ago on Introduction

    he is probably multiplexing the two led displays
    the thing is that this is not an instructable mate its just a video of how your project works ... so please provide with the steps ?/

    0
    banja711
    banja711

    10 years ago on Introduction

    Where is the second LED display on schematics?

    0
    macobt
    macobt

    Reply 10 years ago on Introduction

    The thermometer in original schematis is with 4 segments,but I built it with 2 segments,other 2 show when thermometer is measuring below zero and other show half degree,example 26.0 or 26.5