A few months ago I sort of came up with an idea for a project I would like to do. I play battlefield bad company 2 online, but I also get out and play airsoft with friends.
so for my project I was thinking I want to try and make the motion sensor ball that you throw and if people or vehicles approach one they emit a beeping noise.I would like to make one of these for airsoft.
I looked into using piezo's but non of the data sheets say what the sensitivity is, then thought maybe ping sensors I think they might work.
would the arduino and ping sensors survive multiple impacts from being thrown though?
Edit: how would you take readings from more then one ping sensor and then send it over an RF channel to a receiver? please post an example sketch if possible or try to explain what it would take to complete this.