MarkT:
Also be aware that many solvents will totally weaken crash helmets, so how you attach the sensors has to avoid using solvent-based glues.
Hi MarkT,
Thanks for the suggestion. I appreciate it.
Honestly speaking, I am right now in the stage of learning the arduino environment (as I mentioned I am a newbie in arduino world).
So I do not know exactly how I am going to stick the sensors to the helmet, but if I speak based on what I have been imagining so far, then the sensors will be attached from inner part of the helmet.
Why? Cos I realized that some of the layer inside the helmet are detachable, so I could take them off and attach the sensor(s) and put them back again. I assume that the vibration sensors can detect the stress from inside with no problem. What do you think?