sjurlur

const int M1 = 4;    // H-bridge leg 1 (pin 2, 1A)
const int E1 = 5;
const int M2 = 8;    // H-bridge leg 2 (pin 7, 2A)
const int E2 = 9;
const int mouthPin = 2;
//const int knapp = 3;
char mouth;
boolean state = true;

const int enablePin = 10;    // H-bridge enable pin

sjurlur

/*
 Hall Effect Switch
 
 Turns on and off a light emitting diode(LED) connected to digital  
 pin 13, when Hall Effect Sensor attached to pin 2 is triggered by a magnet
 
 Hall effect sensor used is the A1120EUA from Allegro Microsystems
 
 This example code is in the public domain.