hola gentes,
i'd like to try using a plant as a switch like in this project:Interactive Plant Growing Sommerer & Mignonneau but the porblem is that i not really know what i need to get started. I know that they attached some wiring to the roots of the plant and measured the change of the electrical potential. So they got a lot more data to grow plants based on how one touches the plant. Is a potentiometer what i need? i really just need on/off for what i plan.
thnx
kons
you might try a capacitive sensing approach.
check out this post - it's one way of capacitive sensing
http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=117107625
paulb