Arduino Circuit Breaker

1//Programme : Arduino Circuit Breaker
2//Wisit for more projects : http://www.setnfix.com
3//E-mails   : bmiakbasnayaka@gmail.com
4
5
6
7int Crnt = A0; 
8float voltage;
9int   anval;
10int relay = 12;
11float amps;
12
13void setup() {
14  // put your   setup code here, to run once:
15  Serial.begin(9600);
16  pinMode(Crnt,INPUT);
17pinMode(relay,OUTPUT);
18digitalWrite(relay,HIGH);
19}
20
21void   loop() {
22  // put your main code here, to run repeatedly:
23anval = analogRead(Crnt);
24voltage   = (anval/1024.0)*5000;
25
26
27  amps=((voltage-2490)/66);
28  Serial.print("amps   : ");
29 Serial.println(amps);
30  delay(150);
31if (amps < 0){amps =amps*-1;}
32
33   if (amps >.8){// When hold the motor, it takes a current more than 800mA.
34     digitalWrite(relay,LOW);delay(1000);}
35
36}

1//Programme : Arduino Circuit Breaker
2//Wisit for more projects : http://www.setnfix.com
3//E-mails  : bmiakbasnayaka@gmail.com
4
5
6
7int Crnt = A0; 
8float voltage;
9int  anval;
10int relay = 12;
11float amps;
12
13void setup() {
14  // put your  setup code here, to run once:
15  Serial.begin(9600);
16  pinMode(Crnt,INPUT);
17pinMode(relay,OUTPUT);
18digitalWrite(relay,HIGH);
19}
20
21void  loop() {
22  // put your main code here, to run repeatedly:
23anval = analogRead(Crnt);
24voltage  = (anval/1024.0)*5000;
25
26
27  amps=((voltage-2490)/66);
28  Serial.print("amps  : ");
29 Serial.println(amps);
30  delay(150);
31if (amps < 0){amps =amps*-1;}
32
33  if (amps >.8){// When hold the motor, it takes a current more than 800mA.
34    digitalWrite(relay,LOW);delay(1000);}
35
36}