I've been searching around instructables.com for using guitar jacks and the Arudino most of them are using a 3 pronged guitar-jack(female). The one I purchased from Digikey.com is a Two pronged circuit(Usually they are 3 pronged so none of the current guitar jack tutorials are no compatible). I'm using the M-Audio's Guitar Pedal named the EX-P. I'm assuming it is a POT and using it as an analog input.
My setup is like this on the arduino board...
The female guitar jack is hooked up to 5v to Analog 0 (Pin A0) - Product datasheets/specs can be found here: http://search.digikey.com/scripts/DkSearch/dksus.dll?x=0&y=0&lang=en&site=us&KeyWords=sc1121-nd
Then the M-Aduio EX-P is plugged into the guitar jack.
The following is my code.....
//Define Global variables
int pedalPin = A0;
int sensorValue = 0;
//Begin Main Function (setup)
void setup() {
//Initate Serial communication
Serial.begin(9600);
//Set pinmode for the pedal
pinMode(pedalPin, INPUT);
}
void loop() {
sensorValue = analogRead(pedalPin);
Serial.println(sensorValue);
//Delay
delay(200);
}
The issue is when I turn it on(with out the M-Aduio EX-P plugged into the jack) I get random data back from the SerialMontior - then when i plug in the M-Audio EX-P pedal i get random values still but this time it seems to stay within the range of 640 to 653.
I've tried moving up and down on the pedal and the outputted values don't seem to move up or down accordingly - it just spits out random data...
help!
Please and Thank you!
Products used in this question:
Arduino Mega
Guitar Jack - Female - http://search.digikey.com/scripts/DkSearch/dksus.dll?x=0&y=0&lang=en&site=us&KeyWords=sc1121-nd
M-Audio EX-P - http://www.sweetwater.com/store/detail/PedalExp/