fpga, thermostat

Discussion in 'The Projects Forum' started by culio347, Dec 14, 2009.

  1. culio347

    Thread Starter New Member

    Nov 15, 2009
    4
    0
    hi,
    please does anyone know how a thermostat would be connected to an fpga.
    i am supposed to implement vhdl codes on an fpga that run a 7 day clock timer and does certain functions like turning on/off related to the temperature on a thermostat.
    does anyone know how the thermostat would be attached to the fpga device or how them 2 are supposed to be connected to each other.
    Please let me know if there are any ports on the thermostat that could be connected to the fpga?
    Also please any suggestions of the type of thermostat i should get for my fpga prototype. maybe digital or manual or programmable thermostats and does this really matter? Looking for cheap solutions so be very kind. Thanks
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    Why would you want to use the FPGA to run a thermostat? The heating/coolong functions are accomplished by contact closures. If your FPGA can read the temperature and run a relay, then it can duplicate a thermostat. Adding daily programming and anticipation is always possible.
     
  3. culio347

    Thread Starter New Member

    Nov 15, 2009
    4
    0
    yes but how can i read the temperature without a thermostat so that the fpga so it can turn on and off depending on the temperature?
     
  4. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    Use a device like an LM34 or 35. The output will need amplification and conversion to digital values.
     
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