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
  1. int led1 13;
  2. int led2 12;
  3. int led3 11;
  4. int analogValue = 0;
  5. float voltage = 0;
  6. int ledDelay = 2000;
  8. void setup()
  9. {
  10. pinMode(led1, OUTPUT);
  11. pinMode(led2, OUTPUT);
  12. pinMode(led3, OUTPUT);
  13. }
  14. void loop()
  15. {
  16. analogvalue = analogRead(0);
  17. voltage = 0.0048 * analogvalue;
  18. if (voltage >= 1.6)
  19. {
  20. digitalWrite(led1, HIGH);
  21. delay(ledDelay);
  22. digitalWrite(led1, LOW);
  23. }
  24. else if (voltage < 1.6 && voltage > 1.4)
  25. {
  26. digitalWrite(led2, HIGH);
  27. delay(ledDelay);
  28. digitalWrite(led2, LOW);
  29. }
  30. else if (voltage < = 1.4)
  31. {
  32. digitalWrite(led3, HIGH);
  33. delay(ledDelay);
  34. digitalWrite(led3, LOW);
  35. }
  36. }
    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.