Grumpy_Mike:
If you need help with this then post the code you are running on the Arduino.
Sorry, I am a beginner at arduinos in general. This is the code that I have for the project. I didn't write it so I don't know which part your'e looking for so I'll just post the whole thing.
/***********HOBGOB ECLECTRONICS BeatSneaks code**************/
/*This code sends MIDI messages using electrical pulses from FSRs (Force Sensitive Resistors) placed in the heels and toes of a pair of sneakers.
It has been adapted from code by todbot, ladyada, spikenzielabs, and mschaff (ardrumo) - special thanks to X (wxs.ca)
You'll need to grab the Serial-MIDI Converter from spikenzielabs.com */
/************************************************************/
#define HEELTHRESHOLD 450
#define TOETHRESHOLD 350
#define LOWERHEELTHRESHOLD 150
#define LOWERTOETHRESHOLD 101 // We're setting both a lower and an upper threshold for the FSRs, so that they will only trigger a MIDI message when we actually want them too.
#define HEEL1PIN 0
#define HEEL2PIN 1
#define TOE1PIN 2
#define TOE2PIN 3
#define EXTRAPIN1 4
#define EXTRAPIN2 5 // Define which analog in pins on the arduino we'll be using
int LEDpin = 13; // Connect LED to pin 13
int pinNote[6] = {78,65,88,59,41,42}; // This array stores the different MIDI notes that each pin is assigned
boolean heel1 = false;
boolean heel2 = false;
boolean toe1 = false;
boolean toe2 = false; //These variables will help us to make sure we don't send multiple MIDI messages per single hit
void setup(void) {
Serial.begin(57600); // We'll send debugging information to the Serial monitor
pinMode(LEDpin, OUTPUT);
}
void loop(void) { // This is the main function that executes all the others.
heel1 = sender(analogRead(HEEL1PIN), HEEL1PIN, pinNote[HEEL1PIN], "HEEL1", heel1, HEELTHRESHOLD, LOWERHEELTHRESHOLD);
heel2 = sender(analogRead(HEEL2PIN), HEEL2PIN, pinNote[HEEL2PIN], "HEEL2", heel2, HEELTHRESHOLD, LOWERHEELTHRESHOLD);
toe1 = sender((analogRead(TOE1PIN)+100), TOE1PIN, pinNote[TOE1PIN], "TOE1", toe1, TOETHRESHOLD, LOWERTOETHRESHOLD);
toe2 = sender((analogRead(TOE2PIN)+100), TOE2PIN, pinNote[TOE2PIN], "TOE2", toe2, TOETHRESHOLD, LOWERTOETHRESHOLD); // We add some extra punch to the toe readings so that they'll sound about as loud as the heel
}
void midimsg(unsigned char message, unsigned char pitch, unsigned char velocity) { // This function sends a MIDI message with a message, pitch, and velocity
Serial.print(message);
Serial.print(pitch);
Serial.print(velocity);
}
boolean sender(int reading, int pin, int note, char msg[], boolean press, int threshold, int lowerthreshold ) { // This function is what does all the work
if(reading >= threshold) { // If the user stomps harder than a certain threshold...
if(!press) { // and if the sensor is not already in 'pressed' mode...
reading = reading/8 - 1; // convert the FSR reading to a MIDI-friendly value
digitalWrite(LEDpin, HIGH);
midimsg(144, note, reading); // Send a MIDI message
Serial.println(msg); // Send a unique debug message to the Serial monitor
delay(30);
digitalWrite(LEDpin, LOW);
} press = true; // The sensor is now in 'pressed' mode,
} else if(reading <= lowerthreshold) { // once the applied force sinks below the lower threshold...
press = false; // the sensor is no longer in 'pressed' mode
}
return press;
}