int r=200; int r1=200; int r2=200; int r3=200; int r4=200; int a=0;//first read int b=0; int c=0; int d=0; int e=0; int t1=0;//tally one int t2=0;//tally two int on=0; int td=500;//time delay void setup() { pinMode (2,OUTPUT); pinMode (4,OUTPUT); pinMode (7,OUTPUT); pinMode (9,OUTPUT); pinMode (11,OUTPUT); pinMode (3,OUTPUT);//set bypass relay digitalWrite(3,HIGH);//hold system on digitalWrite (2,HIGH); digitalWrite(4,HIGH); digitalWrite(7,HIGH); digitalWrite(9,HIGH); digitalWrite(11,HIGH); delay(1000);//wait while book is being picked up } void loop() { r4=analogRead(A4); r3=analogRead(A3); r2=analogRead(A2); r1=analogRead(A1); r=analogRead(A0); if (r4>600) { a=1; } if (r3>600) { b=2; } if (r2>600) { c=4; } if (r1>600) { d=8; } if (r>600) { e=16; } t1= a+b+c+d+e; delay(600);//time between reads r4=analogRead(A4); r3=analogRead(A3); r2=analogRead(A2); r1=analogRead(A1); r=analogRead(A0); if (r4>600) { a=1; } if (r3>600) { b=2; } if (r2>600) { c=4; } if (r1>600) { d=8; } if (r>600) { e=16; } t2= a+b+c+d+e; if (t1==t2) {//valid read twice in a row if (a==1) { digitalWrite(2,LOW); on=1; digitalWrite(4,HIGH); digitalWrite(7,HIGH); digitalWrite(9,HIGH); digitalWrite(11,HIGH); digitalWrite(3,HIGH); delay(150);//keep pin low for sound fx board } if ((b==2) && (on==0)){ digitalWrite(4,LOW); digitalWrite(2,HIGH); digitalWrite(7,HIGH); digitalWrite(9,HIGH); digitalWrite(11,HIGH); digitalWrite(3,HIGH); on=1; delay(150); } if ((c==4) && (on==0)) { digitalWrite(7,LOW); digitalWrite(4,HIGH); digitalWrite(2,HIGH); digitalWrite(9,HIGH); digitalWrite(11,HIGH); digitalWrite(3,HIGH); on=1; delay(150); } if ((d==8) && (on==0)){ digitalWrite(9,LOW); digitalWrite(4,HIGH); digitalWrite(7,HIGH); digitalWrite(2,HIGH); digitalWrite(11,HIGH); digitalWrite(3,HIGH); on=1; delay(150); } if ((e==16) && (on==0)) { digitalWrite(11,LOW); digitalWrite(4,HIGH); digitalWrite(7,HIGH); digitalWrite(9,HIGH); digitalWrite(2,HIGH); digitalWrite(3,HIGH); delay(150); } if(t2==0) { digitalWrite(11,HIGH); digitalWrite(4,HIGH); digitalWrite(7,HIGH); digitalWrite(9,HIGH); digitalWrite(1,HIGH); digitalWrite(3,LOW);//turn off bypass relay }} on=0; a=0; b=0; c=0; d=0; e=0; }