Wireless sensors without networking

Discussion in 'The Projects Forum' started by susannah, Nov 23, 2013.

  1. susannah

    Thread Starter Active Member

    Feb 14, 2010
    87
    0
    I have tried to find a way to connect wirelessly about 20 simple sensors (on/off) to "Mini Maestro 24-Channel USB Servo Controller (Partial Kit) Pololu 1357".

    I don't want to use complicated and expensive things like bluetooth or XBee etc.

    I there any way to send some kind of pulse or something similar? Thanks
     
  2. wayneh

    Expert

    Sep 9, 2010
    12,153
    3,059
    Are we to guess what sensors you are using?
     
  3. susannah

    Thread Starter Active Member

    Feb 14, 2010
    87
    0
    I'm planning to use all kinds of SparkFun sensors but many of these are on/off switches.
     
  4. Alec_t

    AAC Fanatic!

    Sep 17, 2013
    5,804
    1,105
    What input signals does the Mini Maestro require?
     
  5. susannah

    Thread Starter Active Member

    Feb 14, 2010
    87
    0
  6. sirch2

    Well-Known Member

    Jan 21, 2013
    1,008
    351
    Using radio is just not that simple, hence why we have things like bluetooth. Just think it through, how will you know which sensor the signal came from?

    if you have line-of-sight you could use infra-red or visible light but you will still need some encoding to know which sensor sent the signal.
     
    susannah likes this.
  7. susannah

    Thread Starter Active Member

    Feb 14, 2010
    87
    0
    I'm total newbie in these things.

    Unfortunately there is not line-of-sight.

    I'm pretty sure someone has developed this kind of comms circuit plan already.

    What options i have? Using 20 bluetooth type of networking things like XBee is too expensive. Thanks
     
Loading...