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Safe and Sound
Blog Safe and Sound : Winter/cold weather survival suit Post #10 (Help needed and an update)
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  • Author Author: dwinhold
  • Date Created: 14 May 2017 2:52 AM Date Created
  • Views 1669 views
  • Likes 4 likes
  • Comments 14 comments
  • winter
  • safe & sound
  • dwinhold
  • winter survival suit
  • cold
  • onewire
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Safe and Sound : Winter/cold weather survival suit Post #10 (Help needed and an update)

dwinhold
dwinhold
14 May 2017

I'm not sure how much of an update this is considered. I am having issues with the temperature sensors (DS18B20 Temperature Sensors) which are OneWire. Now the issue is that they don't work on the MSP432P401R. I have tried everything in the past 2 weeks and a lot of different coding to no avail. I copied and pasted code and even used the code in Energia for the OneWire temperature sensors and nothing worked. I found some information on line saying all the coding for the sensor works on the MSP430. When I used the sample code and compiled it for the MSP430 it worked, but it crashes for the MSP432. Since this is what I require to finish my project I require help on finding the correct sensors. I have the suit complete with the heat elements sewn in. The power supply is ready and wires are run throughout the suit, I just need working sensors.

 

A quick update on the waterproofing of the board with the acrylic conformal coating. I filled a tray with water and added salt (quite a bit of salt), powered up the test Arduino and set it into the salt water for 2 hours. (I kept the plugged-in end out of the water). I then took it out and let it dry off (It kept working and I didn't wash it off). A week later (2 days ago) I plugged it in and it is still working so I put it into another tray full of salt water for 1 more hour (It still is working). I did wash it off with clean water and it is no worse for wear, I am very impressed with the coating, giving me different use ideas for the future.

 

So, I require any help or advice available

 

My question to everyone, what temperature sensors work on the MSP432? Since I already spent money on sensors that don't work, I need to get the correct ones (Quickly).

 

Thank you for any help you can give

 

Dale Winhold

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Top Comments

  • balearicdynamics
    balearicdynamics over 8 years ago +3
    Hi Dale, it seems that the 1-Wire temperature sensors (and other sensors) interfacing with the MSP320 reports some well-known issues. This is one of many links I have found about this problem: https:/…
  • Jan Cumps
    Jan Cumps over 8 years ago +2
    Can you post the code that works on the MSP430 and crashes on the MSP432? More eyes can have a look at it then. I don't have the DS18B20 but there should be no reason why the MSP432 would be unable to…
  • Jan Cumps
    Jan Cumps over 8 years ago +2
    ... logging a help request on the e2e.ti forum, under MSP342 area, also often helps. Certainly when you make clear that you are a beginner and that you're participating in this design challenge.
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  • dwinhold
    dwinhold over 8 years ago

    Thank you guys for all the help, I will try all your suggestions. It looks like a very busy week for me, I will keep everyone updated on this issue and my progress.

     

    Dale

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  • dwinhold
    dwinhold over 8 years ago

    Thank you guys for all the help, I will try all your suggestions. It looks like a very busy week for me, I will keep everyone updated on this issue and my progress.

     

    Dale

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