BadgerHack: Synth Add-On Kit

Contributors: Nick Poole

Code

Plug the USB side of your BadgerStick into your computer. Make sure "BadgerStick" and the associated COM port are selected in the window below. Click "Run on Arduino."

Copy the code below, and upload it through the Arduino IDE.

language:c
/*BadgerSynth Example Sketch
February 2016

Written by Nick Poole
SparkFun Electronics

Code is released under the MIT License.
*/
#define SPEAKER A4
#define POT_A A0
#define POT_B A1
#define POT_C A2
#define POT_D A3

int x = 2;
int osc1 = 0;
int osc2 = 0;
int ran = 0;
int tempo = 0;
int note;
bool event = 0;

void setup() {

// Setup all of the DIP Switch pins as Inputs
for(int i = 0; i<10; i++){
  pinMode(i, INPUT);
  digitalWrite(i, 1);
}

}

void loop() {

// Read all of the potentiometers 
tempo = analogRead(POT_A) * 10;
osc1 = map(analogRead(POT_B), 0, 1023, 200, 6000);
osc2 = map(analogRead(POT_C), 0, 1023, 0, 1000);
ran = analogRead(POT_D)/2;

if(x==10){x=2;} // Iterate through each step on our DIP Switch

for(int y = 0; y<tempo; y++){ // Time each event to trigger on tempo
if(digitalRead(x)==0){

if(event == 0){
note = random(osc1-ran, osc1+ran); // Allow for randomness to be set
tone(SPEAKER, note, osc2); // Create our tone
event = 1;}

}
else{noTone(SPEAKER);} // If the DIP Switch is off, shut up for a step

}

x++; event = 0;

}

This code steps through each pin on the DIP switch, reading the input to the BadgerStick. If a switch is open, the BadgerStick will make a noise based on the potentiometer inputs. Changing the potentiometers will change the random tones created by the BadgerStick.