I posted something earlier about this, I am just hoping to get a little more insight. I am very new to arduino.
I need to make a basic low frequency (somewhere between 0 to 20 Hz) low voltage (5-50 mV) voltage pulser to stimulate some cells. I'm using a mega. I tried the simple blinking LED project for starters, but I am confused on how to implement the voltage output or how to regulate it. Should I just use a power supply and some resistors to make a voltage divider that produces the desired voltage? If so, how do I get the arduino to pulse this particular voltage? Thanks so much for the help, it is greatly appreciated. :)