Hiking Tracker 2.0

// D2 for INT 2 RED PUSH SWITCH
// D3 for PWM BUZZER Drive
// D10 INT 0 GREEN PUSH SWITCH
// D11 INT 1 BLUE PUSH SWITCH

// D4 spare line for Relay drive spare line not used


// initialize buzzer and push switch
void io_init (void)
{


// pinMode(4,OUTPUT) Spare outout line 
 pinMode(3,OUTPUT);
 pinMode(2,INPUT_PULLUP);
 pinMode(10,INPUT_PULLUP);
 pinMode(11,INPUT_PULLUP);
 
}