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DS2760 reports 32 degrees — Parallax Forums

DS2760 reports 32 degrees

dbjdbj Posts: 75
edited 2005-10-30 15:05 in BASIC Stamp
Hello , my DS2760 will only display 32 degrees on the debug terminal, have cleaned k/ leed in wires and even tried running· program to get id codes from the one wire device. Have also tried
pluging in the id to see if that would work. I have two DS2760's so I dont think it is a hardware problem. Also is there a way to send the temperature readings from the BS2P24 to my BS2 so that I can plot them with my stamp plot pro? I am using my BS2 to monitor temperatures on a waste oil heater, and would like to be able to plot·and monitor the exhaust and combustion chamber temperatures using the thermocouples, Thanks David B·

Comments

  • Chris SavageChris Savage Parallax Engineering Posts: 14,406
    edited 2005-10-29 18:05
    Which I/O pin is the Thermocouple connected to?

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    Chris Savage
    Parallax Tech Support
    csavage@parallax.com
  • dbjdbj Posts: 75
    edited 2005-10-29 22:50
    Have tried 8 and 15 will not work on either one. Thanks David
  • Chris SavageChris Savage Parallax Engineering Posts: 14,406
    edited 2005-10-29 22:57
    Okay, so you tried more than one I/O pin already.· Are you sure you have the probe wires in the correct holes?· And the other end twisted together?· The Red wire goes into the SNS side, and the other (Yellow, White or Blue) goes into Vss.

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    Chris Savage
    Parallax Tech Support
    csavage@parallax.com
  • dbjdbj Posts: 75
    edited 2005-10-30 01:45
    Yes the wires are correct. still shows 32 f and 0 celsius,
  • Chris SavageChris Savage Parallax Engineering Posts: 14,406
    edited 2005-10-30 02:03
    Meant to ask this in my last reply...What are you powering it with?· And does it have a common ground with the BASIC Stamp?

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    Chris Savage
    Parallax Tech Support
    csavage@parallax.com
  • dbjdbj Posts: 75
    edited 2005-10-30 14:52
    I am powering it with the VDD on my BOE board , I will check the voltage at the thermocouple voltage ok.
  • dbjdbj Posts: 75
    edited 2005-10-30 15:05
    WEll fixed it for some reason I dont understand?? It works now!! All I did was to redownload the k tables onto my machine, now for my next deal, I am gong try and run my whole project off of the BS2P24 I think it is a better choice than conecting the BS2 to my BS2P24 visa versa all I want to do is monitor Six chanels two DS2760 and four DS1620. Thanks and have a Great Day!!!
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