cheap temperature sensors

Discussion in 'General Electronics Chat' started by aac9876, Aug 13, 2007.

  1. aac9876

    Thread Starter Active Member

    Dec 9, 2006
    124
    0
    i want to install ,if possible, inexpensive temperature sensors in a root cellar area used for storing food. is there a way to do it wireless?? I was wondering if those cheap radio chip transmitters that retailers use for tracking could be used? anybody ever do anything like this?
     
  2. lightingman

    Senior Member

    Apr 19, 2007
    374
    22
    Hi...A good temprature sensor is the LM35.... A couple of PIC microcontrolers, a small hybrid transmiter and receiver, and yes it can be done...Daniel.
     
  3. aac9876

    Thread Starter Active Member

    Dec 9, 2006
    124
    0
    are there accurate cheap voltage meters that can do mv
    accurately,and maybe simple conversion,..I mean little LCD meters about an inch or so that might be used in battery monitoring setups, not a multimeter or anything like that.?
     
  4. hgmjr

    Moderator

    Jan 28, 2005
    9,030
    214
    Do you want to measure the actual temperature and display it remotely or would you be content with a single indicator that the temperature was above or below a set value?

    hgmjr
     
  5. aac9876

    Thread Starter Active Member

    Dec 9, 2006
    124
    0
    display remotely. on a cheap LCD. doesnt need to be a whole computer
     
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