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Dual channel thermometer

8-bit PIC based thermometer with USB connectivity

miroslav-hancarMiroslav Hancar
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416 views
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  • miroslav-hancarMiroslav Hancar

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completed project
hardware
PT100 pic microchip thermometer

This project was created on 04/25/2020 and last updated 4 months ago.

Description

-PIC18F46J11 & MCP3424
-works with Pt100 or Pt1000 - automatically recognizes the type of connected sensor
-supports 2 or 4 wire connection of sensors
-temperatures are displayed either separately or as a difference
-powered by Li-Ion battery or USB

Details

Files

Teplomer.X.zip

Source code

x-zip-compressed - 2.11 MB - 10/15/2022 at 18:29

Download

thermometer.sch

sch - 740.72 kB - 04/25/2020 at 17:07

Download

thermometer.brd

brd - 269.66 kB - 04/25/2020 at 17:07

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Gabriel wrote 04/26/2020 at 12:03 • point

nice build! I love to see other PIC builds here. I got a few questions for you if you dont mind: what pbc fab house did you use? What Usb stack/compiler?

Also, as a suggestion, you could cut some "smoked" acrylic squares about the same thickness as the enclosure and press fit them over the 7 segments. Makes it much easier to read. I wish i could upload a pic to show you mine on this comment.

  Are you sure? yes | no

Miroslav Hancar wrote 04/26/2020 at 14:09 • point

Thank you Gabriel! I'll definitely try what you suggest. 

PCB was made at Seeedstudio and i used MCP2200 as USB<->UART bridge and XC8.

  Are you sure? yes | no

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