I am looking for a good air pressure sensor to read and regulate tire pressure in a mountain bike. Is there any digital pressure sensors, or would they all be analog? I would like it to be small enough to fit inside a pipe, and accurate to at least 1psi (more accurate would be better). Basically I want a program where I can set the desired pressure, then hook it up to the tire and the Arduino will tell me whether to inflate or deflate the tire in order to reach the desired psi.
At first I thought mounting the sensor inside the tube and then an RF transmitter to a receiver on the handlebars, but there is probably a simpler solution.
Make a device that attaches to the valve stem and mount the unit to the rim, when the pressure is below a threshold an LED could be turned on. Simpler yet use an old fashioned tire presure gauge at the beginning of the ride.
Thank you for your reply.I can figure out all the mechanical stuff and how to mount everything. I'm wondering on which pressure sensor to buy. Is there an analog or digital sensor that will measure the tire pressure in real time? I am wondering if anyone has experience with a sensor they might recommend.
i dout you will need a pressure sensor that is updateing the tire pressure all the time the tire only needs to be tested at the start of a trip and if you get a punture in the tire
I'm just asking for a good pressure sensor you might recommend. It's for a college engineering project I am working on. The bike will self regulate it's tire pressure and will be adjustable during the ride. I am just asking for a good digital or analog air pressure sensor, please.
.I can figure out all the mechanical stuff and how to mount everything.
This sounds more like a bike you would brag about rather than ride, but wireless tire pressure monitors are available commercially and spare sensors are available on eBay. The TPMS sensor reads to 87 psi, and is therefore good for a mountain bike. I imagine it is a bluetooth device and thus probably conversant with an Arduino if required.