Here is my physiology project
I'm building a muscle stimulator that will have to control 4 groups of frog leg muscles so that i can achieve movement across 2 articulations.
The source for the impulses will be the standard lab stimulator but it has only 1 pair of electrodes and for this experiment i need 4 pairs.
I want the arduino to turn on and off the electrodes at certain times and for certain periods of time. can somebody give me a rough schematic on how to build the circuit, or at least what should i use for switches (transistors, relays ?), what arduino pins to use and how to turn that 1 pair of electrodes into 4 ?
I'm relatively new to electronics and the arduino, but would very much like to make this project happen.
Thank you, sorry for my english...