This is my first time posting, but I've been lurking around for a bit now. I want to find an appropriate sensor to detect small impacts at different places on a car's body (think door dings, parking lot bumps, etc.) I need a sensor that will help me sense an impact, so that I can then react to it by doing something else. At this point, I don't care to know where the impact occurred, just that the car has been hit. My preliminary research has me contemplating the following options:
- accelerometer(s) - don't know if the cheap hobby-style units have enough sensitivity to sense a very light impact. Don't even know the ballpark strength (g's) of such an impact.
- shock or vibration sensor (e.g. http://www.sparkfun.com/commerce...) - this would probably require more sensors and trickier installation. It seems like you would need one sensor/body panel.
Anyone thought about this before? Any suggestions appreciated. Thanks!