Test Battery Life With Arduino Mega 2560

Introduction

• In this article I have explained about testing the Life of Battery in Arduino Mega 2560.
• It can be used in TV remotes and Flash lights and can also be used to check the power of battery.

Parts Of Lists

• Arduino Mega 2560
• Battery  
• LEDs
• Hookup Wires 

Connections

Step 1: Connection of Battery to Arduino Board

• Connect the Battery positive pin to the Analog pin of 03 to the board.
• Connect the negative pin to the GND to the board. 

Step 2 : Connections Of LEDs to Arduino Board

 

LED 1 

• Connect the positive pin to the 13 of the board.
• Connect the negative pin to the Gnd  

LED 2

• Connect the positive pin to the 12 of the board.
• Connect the negative pin to the Gnd 

LED 3

• Connect the positive pin to the 11 of the board.
• Connect the negative pin to the Gnd 

Programming

int led1 13;
int led2 12;
int led3 11;
 int analogValue = 0;
float voltage = 0;
int ledDelay = 2000;

Void setup()
{
pinMode(led1, OUTPUT);
pinMode(led2, OUTPUT);
pinMode(led3, OUTPUT);
}
void loop()
{
analogvalue = analogRead(0);
voltage = 0.0048*analogvalue;
if ( voltage >= 1.6 )
{
digitalWrite(led1, HIGH);
delay(ledDelay);
digitalWrite(led1, LOW);
}
else if ( voltage < 1.6 && voltage >
{
digitalWrite(led2, HIGH);
delay(ledDelay);
digitalWrite(led2, LOW);
}
else if ( voltage < = 1.4 )
{
digitalWrite(led3, HIGH);
delay(ledDelay);
digitalWrite(led3, LOW);
}
}

Explanation:

• In this article I have explained about testing the Life Of Battery in Arduino Mega 2560.
• When the voltage is <1.6 volt, it can have the power
• When the voltage is <=1.4 volt, it cannot have the power.