Galvanic Skin Response Output Alternatives
Hi guys,
I've managed to build a circuit contributed by a Mr. Ravi sometime last year. Its working fairly well except that the LED output seems a little unstable. This, he says, is due to the electrode. He suggested using silver electrodes attached to shielded cables for better results.
I would like to know if instead of having 2 separate source - 1.5V and 9V -whether it would be possible to run on a single integrated supply. If not, what's the reason behind it.
Also, instead of using the output signal to drive the led, channel it to a computer. I know there has to be some type of ADC involve. Could anyone point me to any website that has step by step guide.
Even after conversion there has to be some form of interfacing involve rite? What are the common types of program used? is there any free available template that can be modified for use? I have some knowledge in C programming but none at all in electronic.
Please advise. Thanks!
Happy Holidays!
shamog