TPMS project help

Discussion in 'The Projects Forum' started by algis87, Jan 30, 2016.

  1. algis87

    Thread Starter New Member

    Jan 30, 2016
    1
    0
    Hello everyone,
    I need to do a project about TPMS (Tyre pressure monitoring system). I will need to create a MCU based wireless receiver (probably a PIC) with a LCD screen to collect data from the sensors. For project demonstration I only need one sensor.

    I was suggested to use existing aftermarket or OEM TPMS sensors. The problem is that I can't find datasheets for these sensors. I don't know their communication protocols. What I learned is that they mostly use 315/433Mhz FSK modulation, Manchester encoding but nothing more specific. I have seen someone hacking these sensors with data analyzers, but I can't afford such tools.

    Another route would be to design my own pressure sensor. By doing that, I could use different wireless standards like 433Mhz, Zigbee, bluetooth or something other. The problem would be power consumption as the sensors are battery powered. Also this would take more time to design both the sensor and receiver.

    So before I start I need your suggestions. Is it possible to use existing sensors for my project or should I design a new one?
    Any help is appreciated.
     
  2. David Knight

    New Member

    Aug 4, 2015
    26
    5
    I suggest using an off-the-shelf sensor.

    If you try to design your own sensor, you'll face a lot of problems.
     
  3. shteii01

    AAC Fanatic!

    Feb 19, 2010
    3,394
    497
    Does the sensor have a manufacturer?
    Does the manufacturer has a model of the sensor?
     
  4. David Knight

    New Member

    Aug 4, 2015
    26
    5
    I don't know. Try mouser, digikey, etc.

    You probably want something that works 0-50psi.
     
  5. shteii01

    AAC Fanatic!

    Feb 19, 2010
    3,394
    497
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