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The home for integration tire pressure monitoring system
What is TPMS?
TPMS is a sensor within a vehicle's tires that measure the internal tire air pressure, and displays it on a panel for the driver to see
Having a low air pressure in a tire can lead to worsened performance and efficiency, increased wear, and possible sudden tire failure
What is TPMS?
TPMS is a sensor within a vehicle's tires that measure the internal tire air pressure, and displays it on a panel for the driver to see
Having a low air pressure in a tire can lead to worsened performance and efficiency, increased wear, and possible sudden tire failure
https://www.reddit.com/r/MechanicAdvice/comments/11m8zli/whats_the_difference_between_tpms_programming_and/ (Differentiation of TPMS Systems)
How we communicate? (Bluetooth, RFID, wireless communication)
https://github.com/merbanan/rtl_433 - Use this to identify and program receiver to take that specific signal
https://github.com/NorthernMan54/rtl_433_ESP
433 MHz Signals
TPMS -> Receiver -> ESP32(rtl_433) --> CAN -> GUB
or TPMS -> Receiver -> STM32 (use rtl_433 seperately to decode the signal from the TPMS) -> CAN -> GUB
TPMS supplier: https://www.tpms.com/default.asp
Board layout
Components Necessary
433 MHz TPMS Sensors
ESP32 Running RTL_433
Voltage Sources
Some sensors have built in power, last about 7-10 years, but need a full sensor replacement after it loses charge
Basic Information
Send signal to GUB through CAN
TPMS for tires
Sensor must be for motorcycles
Internal sensor
Use Spi or I2C
Compatible with STM32
There are two different types of Tire Pressure Monitoring Systems: Indirect and Direct.
Indirect TPMS:
Relies on the wheel speed sensors that the anti-lock brake system uses
Measures rate of revolution each wheel is making and compares it to each other
I.E. If one wheel starts spinning faster than expected, the computer calculates that the tire is underinflated and will indicate something is wrong.
Direct TPMS:
Uses pressure monitoring sensors within each tire. It monitors the specific pressure levels
Sends data wirelessly
Lasts the for the life of the valve (material decomposition) or 7 years whichever comes first
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