hello people
I am trying to build a foot touch sensor mechanism for my hexapod walking robot using force sense resistors. The plan so far is to make something simple like this:
But i would like bump sensing as well (for stair climbing etc)... I only need a simple bump/no bump signal but it has to be detectable from any angle and at least be near the foot/base of the leg (though preferably apply to a fair length of the leg).
I've come up with a number of ideas involving such things as using the aluminum leg's conductivity as part of a switch OR even moulding the foot in such a way, producing a twist force on the FSR's upon object collision BUT I can't seem to come up with anything practical (easy to make and wont break) and cheap enough!
So I was just wondering if anyone here had any general thoughts or ideas or has done something similar in the past. Any ideas would be appreciated!
Mikael