is there a way for the adruino to detect a certain voltage and react to it?
as in
input < 0.7volts = red light
input > 0.8volts = green light
would that be possible? i do not have an adruino board yet as i dont know which one would be capable of doing this. any input would be helpful thank you
Also in the arduino IDE, if you go to file>examples>basics the first item is analogreadvoltage. If statements are pretty easy. If you just take the voltages and place them in if statements then have the led turn on then your set. Couple lines of code. Follow the advice of others, do some googleing, look at make magazine (they do A LOT with arduinos) and just have fun 
Also in the arduino IDE, if you go to file>examples>basics the first item is analogreadvoltage. If statements are pretty easy. If you just take the voltages and place them in if statements then have the led turn on then your set. Couple lines of code. Follow the advice of others, do some googleing, look at make magazine (they do A LOT with arduinos) and just have fun
