Arduino Voltage Meter using Serial Monitor

Read the voltage in the analog with a switch

Nov 24, 2017

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3 respects

debugging tools

home automation

Devices & Components

Arduino Uno Rev3

Breadboard (generic)

Resistor 10k ohm

Jumper wires (generic)

Pushbutton switch 12mm

Software & Tools

Arduino IDE

Project description

Code

Source Code

arduino

1
2/*
3Arduino Voltage Meter using Serial Monitor
4by Faseeh Padinjarathil
5*/
6const   int buttonPin = 2; 
7const int ledPin = 13; 
8int buttonPushCounter = 0; 
9int   buttonState = 0; 
10int lastButtonState = 0; 
11
12
13void setup() {
14
15pinMode(buttonPin,   INPUT);
16
17pinMode(ledPin, OUTPUT);
18
19Serial.begin(9600);
20}
21
22void   loop() {
23
24buttonState = digitalRead(buttonPin);
25int sensorValue = analogRead(A0);
26
27float   voltage = sensorValue * (5.0 / 1023.0);
28
29if (buttonState != lastButtonState)   {
30
31if (buttonState == HIGH) {
32
33buttonPushCounter++;
34Serial.println("on");
35Serial.print("CURRENT   VOLTAGE: ");
36Serial.println(voltage);
37} else {
38
39Serial.println("off");
40}
41
42delay(50);
43}
44
45lastButtonState   = buttonState;
46
47if (buttonPushCounter % 4 == 0) {
48digitalWrite(ledPin,   HIGH);
49} else {
50digitalWrite(ledPin, LOW);
51}
52
53}

/*
Arduino Voltage Meter using Serial Monitor
by Faseeh Padinjarathil
*/
const   int buttonPin = 2; 
const int ledPin = 13; 
int buttonPushCounter = 0; 
int   buttonState = 0; 
int lastButtonState = 0; 


void setup() {

pinMode(buttonPin,   INPUT);

pinMode(ledPin, OUTPUT);

Serial.begin(9600);
}

void   loop() {

buttonState = digitalRead(buttonPin);
int sensorValue = analogRead(A0);

float   voltage = sensorValue * (5.0 / 1023.0);

if (buttonState != lastButtonState)   {

if (buttonState == HIGH) {

buttonPushCounter++;
Serial.println("on");
Serial.print("CURRENT   VOLTAGE: ");
Serial.println(voltage);
} else {

Serial.println("off");
}

delay(50);
}

lastButtonState   = buttonState;

if (buttonPushCounter % 4 == 0) {
digitalWrite(ledPin,   HIGH);
} else {
digitalWrite(ledPin, LOW);
}

}

Source Code

arduino

1
2/*
3Arduino Voltage Meter using Serial Monitor
4by Faseeh Padinjarathil
5*/
6const  int buttonPin = 2; 
7const int ledPin = 13; 
8int buttonPushCounter = 0; 
9int  buttonState = 0; 
10int lastButtonState = 0; 
11
12
13void setup() {
14
15pinMode(buttonPin,  INPUT);
16
17pinMode(ledPin, OUTPUT);
18
19Serial.begin(9600);
20}
21
22void  loop() {
23
24buttonState = digitalRead(buttonPin);
25int sensorValue = analogRead(A0);
26
27float  voltage = sensorValue * (5.0 / 1023.0);
28
29if (buttonState != lastButtonState)  {
30
31if (buttonState == HIGH) {
32
33buttonPushCounter++;
34Serial.println("on");
35Serial.print("CURRENT  VOLTAGE: ");
36Serial.println(voltage);
37} else {
38
39Serial.println("off");
40}
41
42delay(50);
43}
44
45lastButtonState  = buttonState;
46
47if (buttonPushCounter % 4 == 0) {
48digitalWrite(ledPin,  HIGH);
49} else {
50digitalWrite(ledPin, LOW);
51}
52
53}

/*
Arduino Voltage Meter using Serial Monitor
by Faseeh Padinjarathil
*/
const  int buttonPin = 2; 
const int ledPin = 13; 
int buttonPushCounter = 0; 
int  buttonState = 0; 
int lastButtonState = 0; 


void setup() {

pinMode(buttonPin,  INPUT);

pinMode(ledPin, OUTPUT);

Serial.begin(9600);
}

void  loop() {

buttonState = digitalRead(buttonPin);
int sensorValue = analogRead(A0);

float  voltage = sensorValue * (5.0 / 1023.0);

if (buttonState != lastButtonState)  {

if (buttonState == HIGH) {

buttonPushCounter++;
Serial.println("on");
Serial.print("CURRENT  VOLTAGE: ");
Serial.println(voltage);
} else {

Serial.println("off");
}

delay(50);
}

lastButtonState  = buttonState;

if (buttonPushCounter % 4 == 0) {
digitalWrite(ledPin,  HIGH);
} else {
digitalWrite(ledPin, LOW);
}

}

Downloadable files

Instruction File

Circuit

Instruction File

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