Does anyone have information regarding air pressure sensors that can be applied to vehicle tires at an affordable price? The sensor output can be converted to PSI units and can also be connected using ESP32
Please help, thank you!
I have a feeling you did not do any research to find a solution. Look in Automotive for TPS (Tire Pressure Sensor). For cheep parts try your local salvage yard or tire shop.
Are you looking for the type that is screwed onto the valve stem or the type that is attached to the wheel inside the tire and reports the pressure using radio signals?
I have done extensive research regarding pressure sensors, but the instructions for my assignment were to make a TPMS with minimum cost, whereas most of the pressure sensors that I found were not suitable in terms of price so I could not apply them. I have found the MD-PS002 pressure sensor but I am having difficulty in the sensor calibration process to convert the output voltage value from the sensor and then convert it into PSI units, so I am trying to find information from this forum, maybe there are other sensors that I can try. Thank You
Yes, that's right, I'm looking for a sensor with a small size and an affordable price, then for monitoring it uses BLE to be able to display pressure reading data via integrated software
Not to complicate your problem but you must also consider power for the sensor and its electronics. FYI the automotive electrical systems is one of the worst around.
Then you are not making one for a moving vehicle. How many tires are monitoring at the same time?
Are you planning to make your own custom circuit board?
no, my plan is to only connect the ESP32 to the sensor, the ESP32 is used to send sensor reading data to the application using Bluetooth communication
Yes, I plan to make this tool for motorbikes for 2 tires, and this is the final project in my lecture
This tool is separate from the vehicle's electrical system, and this tool has its own power supply, so this tool is only installed on the vehicle's tire hubcap later.
As part of your project, you must have drawings of the the final unit and how it is all attached to the wheel. Can you share the drawings with us?
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As said in your cross-post, you can't connect a bare sensor element with mV output directly to a processor.
Leo..
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You can make the connections but the voltage is to low for the ESP32's A/D (Analog to Digital) converter. Look at it this way, you want to jump over an apartment building but can only jump over a brick, the odds are about the same. There are several experienced people trying to guide you, if you had no plans to at least try/consider there recommendations they you caused us to burn a lot of time where we could be helping others.
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