Accelerometer and UNO

Projects Programming
1

Hi,

I am planning to interface the following accelerometer to UNO

http://www.mouser.com/ds/2/321/28017-Memsic-2125-Accel-Guide-v2.1-370233.pdf

This accelerometer produces PWM signal in response to tilt movement. For example, if it is laying down flat on the table then Xout output will have 50 percent PWM signal.

But I am confused that If it is lifted with an angle from the table then PWM will change then how would I know what will be angle.

Erica

2

Only two axis ? and not a normal interface ?
Search at Adafruit.com for a normal accelerometer.

What is so special about the Memsic 2125 ?
This is the manufacturer's page : MEMSIC 2125 Dual-axis Accelerometer - Parallax
I think that chip is from 2005, that means it is old and outdated.

Here is a start : https://www.arduino.cc/en/Tutorial/Memsic2125
There is more on GitHub.com.

3

Is that the one that uses heated air as the proof mass, and thermistors to sense displacement?

Crazy concept!