I'm new on Arduino world. I'm from Portugal and I work on TI Systems.
It is one amazing microprocessor!
One of my hobbies is my car, at this moment I will do some turbo changes, and I need one pressure sensor to control intake pressure.
I bought one MPX4250AP pressure sensor, and Arduino UNO, with help of some forums and other projects I created the code.
At this moment I can read the pressure, but there is some problem. The pressure it is not constant, exists some break down.
Example print from serial port.
On bold there is the low readings from the sensor. But at this time the intake pressure it is about '1.38'.
MPX4250AP Connection to Arduino:
Vs - 5V
VOut - Analog 5
GND - GND
I use one 10nF capacitor between Analog5 and Ground.
In the Freescale MPX4250AP technical data, exists another capacitors I need them to stabilize the values? http://www.freescale.com/files/sensors/doc/data_sheet/MPX4250A.pdf
Thanks for help and keep the good work.