Tire Pressure Sensor
The pressure is determined by the formula, <m>P=0.145*
Parts
| Part# | Description | Source | Cost |
|---|---|---|---|
| MPX5700DP-ND | 0-101.5PSI Pressure sensor | Digikey | $16 |
| 2 Ft 1/4ID hose | Home Hardware | $1.50 | |
| 2 crimp style hose clamps | Home Hardware | $1.60 | |
| Barbed hose connector | Home Hardware | $1.19 | |
| Compression fitting | Home Hardware | $1.95 | |
| Street Elbow | Home Hardware | $2.29 | |
| Barbed hose connector | Home Hardware | $1.19 | |
| Click on air chuck for valve stem | Princess Auto | $3 | |
| 1/8NPT tank valve | Princess Auto | $2.50 | |
| Total | $<php>print 16+17;</php> | ||
Development
Here are the calculations I did for the module using a spreadsheet to graph the transfer function, then working out the math to something which can be easily done in assembly.
