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TPMS 125kHz Sensor Activation & 433MHz Receiver for RFID Antenna: Data & Filling Queries

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  • #1 16298040
    Anonymous
    Anonymous  
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  • #2 16307585
    ireneusz1981
    Level 18  
    maybe write what sensor it is, some data so that you know if it can be triggered several times or only once, etc ...
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  • #3 16307752
    Anonymous
    Anonymous  
  • #4 16309004
    ireneusz1981
    Level 18  
    Rather, it was about activating the sensor and adding it to the car. And the fact that if the key is removed and the system does not work then is another matter. Rather, you activate it once in the car's system. Read about TMPS encoding devices and understand how it works. And even how to check the battery level in the sensor. I understand that you have a sensor to test and you want to make such a device for excitation or coding / training for each car?
    Not all universal sensors work with reverse engineered cars than the sensor itself.
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  • #5 16371937
    LukaszW998
    Level 9  
    goreckidiy wrote:
    Sensors, I have a uni sensor company.
    As the manufacturer claims, they are universal.

    TPMS 125kHz Sensor Activation & 433MHz Receiver for RFID Antenna: Data & Filling Queries

    From what I understood from reading the various forums, all sensors activate through 125kHz or above 40km / h
    If it was a one-time activation, it wouldn't make sense a bit, because the 433MHz transmitter would quickly drain the battery - at least I think so.
    Maybe someone knows how it actually works, and what when the car is stationary and has the ignition key removed?
    Do the sensors then also transmit?


    Perhaps your problem with the activation in the car is that the sensor has not been programmed for your car model. Universal sensors require programming or configuration to be performed with a device compatible with the sensor manufacturer's requirements. Sensors that I know very well (Alligator sens.it, TECH T-Pro or Huf Intellisens) can be programmed e.g. with the ATEQ VT56 OBD2 device.
    Once programmed, they must be activated in the vehicle in accordance with the vehicle manufacturer's procedure. If it is a 2015 TOYOTA Rav4, it will be a procedure that requires the use of the vehicle's OBD2 link. The variety of activation procedures is great.
  • #6 16371956
    Karaczan
    Level 42  
    The TPMS should also activate itself and send information in the event of a sudden loss of pressure. A sudden jump of about 0.5-1bar should excite him.

    At least the factory ones, and what the quinols have come up with, only they know ...
  • #7 16380653
    LukaszW998
    Level 9  
    Karaczan wrote:
    The TPMS should also activate itself and send information in the event of a sudden loss of pressure. A sudden jump of about 0.5-1bar should excite him.

    At least the factory ones, and what the quinols have come up with, only they know ...

    While driving, the sensors are triggered all the time. Documentation for the HUMMER H3 car says that the sensor reads the tire pressure every 30 seconds and transmits it every 60 seconds.
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  • #8 16381879
    Karaczan
    Level 42  
    But we are not talking about a situation where we have a car, but how to trigger the sensor without the car, or with the car turned off ...
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Topic summary

The discussion revolves around activating a TPMS (Tire Pressure Monitoring System) sensor operating at 125kHz and receiving data with a 433MHz receiver. The user has constructed a probe but is experiencing issues with activation, questioning whether data needs to be sent at 125kHz or if the filling percentage should be adjusted. Responses highlight the importance of programming universal sensors to the specific vehicle model, as they may not activate without proper configuration. It is noted that factory sensors can self-activate under certain conditions, such as a sudden drop in tire pressure. Additionally, the frequency of sensor data transmission while driving is mentioned, with some sensors transmitting every 60 seconds. The conversation emphasizes the need for understanding the activation procedures and compatibility of sensors with vehicle systems.
Summary generated by the language model.
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