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Accelerometer mount for bicycle

by Nigel, published

Accelerometer mount for bicycle by Nigel Apr 15, 2010

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Description

This is a mounting bracket for attaching a sparkfun accelerometer (part number SEN00252) to a bicycle.

Why bother mounting an accelerometer to a bike, you ask? This accelerometer mount is part of a larger project. The idea is to map out the roughness of various bike paths in the city I live in. What I want to do is rapidly sample the acceleration generated on the bike frame by the bumps in the bike paths over a few seconds. I'll then write the peak acceleration to the memory card and tag this data with GPS information so I know where the data was captured. Once I have completed my bike ride, I'll use Processing (processing.org) to crunch the numbers and generate colour-coded blobs to give me a visual representation of the roughness of the bike path along the route I've taken. I'll lay this data over a map of the area, and voila! I will have easy-to-understand information about which paths in the city are in good shape and which ones are to be avoided. (or repaired!)

Now, the hardware details:

I have an Arduino with a GPS logger shield from Adafruit. (adafruit.com) This allows me to capture positional data and log it to a text file, along with any other information I'd like to record.

I have selected a three-axis accelerometer breakout board from Sparkfun. (sparkfun.com) This will allow three-axis acceleration measurement of up to 6g.

The only thing missing is a sturdy bracket to mount the accelerometer to the bike frame...

Recent Comments

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Very interesting project! I'm in Vitória Brazil and one big problem here is street roughness! That would be interesting to map this!
Can you post an STL for printing?
Cool project - merging the roughness data with GPS generated bike routes could probably make the GPS reroute to avoid the worst patches.

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Hans Dorsch - 07

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Very interesting project! I'm in Vitória Brazil and one big problem here is street roughness! That would be interesting to map this!
Can you post an STL for printing?
Cool project - merging the roughness data with GPS generated bike routes could probably make the GPS reroute to avoid the worst patches.
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