DIY ammeter using Arduino

1float Vacross,Iamp = 0;
2const int Shunt_Res = 1000; //for 1k resistor
3
4void  setup() {
5  Serial.begin(9600);
6}
7
8void loop() {
9  Vacross = analogRead(A0);
10   
11  Vacross = (Vacross * 5.0) / 1023.0;
12  Iamp = (Vacross * 1000) / Shunt_Res;
13  
14  Serial.print("Current = ");
15  Serial.print(Iamp);
16  Serial.println("mA");
17  delay(1000);
18}
19

1float Vacross,Iamp = 0;
2const int Shunt_Res = 1000; //for 1k resistor
3
4void
5  setup() {
6  Serial.begin(9600);
7}
8
9void loop() {
10  Vacross = analogRead(A0);
11
12   
13  Vacross = (Vacross * 5.0) / 1023.0;
14  Iamp = (Vacross * 1000) / Shunt_Res;
15
16  
17  Serial.print("Current = ");
18  Serial.print(Iamp);
19  Serial.println("mA");
20
21  delay(1000);
22}
23