Arduino Project 1 - Automated Mung Bean Sprouts Growing Machine

Automated Mung Bean Sprouts growing machine

(자동 콩나물 재배기)

※ How to grow mung bean sprouts

1. Rinse over beans and soak around for a day (24 hours)
2. Place net in pot and spread beans on the net and then cover the pot with something to make inside dark.
3. watering every 2 hours ==> Automate this step

※ Target : develop automated watering machine using Arduino

※  Components and Supplies

- Arduino Uno : $13.98

- 12V mini water pump  : $7.72

- 1 channel Relay : $3.37

- 12V Adapter + Barrel Jack : $5.3

- Small Breadboard and some jumper wires

- a piece of hose

※ Circuit

※ Source Code

/*
* For Automated Mung Bean Sprouts growing machine
*
* Watering every 2 hours
* play music when watering
*
 * Relay pin 12
* speaker pin 8
*
 * created 22 Jan 2017
*
 *by Douglas Changsoo Park
*
 */
 
#include <SimpleTimer.h>
#include "pitches.h"
 
int relay = 12;
 
SimpleTimer timer;
 
int melody[] = {
  NOTE_G4,
  NOTE_G4,
  NOTE_A4,
  NOTE_A4,
  NOTE_G4,
  NOTE_G4,
  NOTE_E4,
  NOTE_G4,
  NOTE_G4,
  NOTE_E4,
  NOTE_E4,
  NOTE_D4,
  0,
  NOTE_G4,
  NOTE_G4,
  NOTE_A4,
  NOTE_A4,
  NOTE_G4,
  NOTE_G4,
  NOTE_E4,
  NOTE_G4,
  NOTE_E4,
  NOTE_D4,
  NOTE_E4,
  NOTE_C4,
  0 };
 
  int noteDurations[] = {
  1,1,1,1,
  1,1,2,
  1,1,1,1,
  3,1,
  1,1,1,1,
  1,1,2,
  1,1,1,1,
  3,1
  };
 
void setup() {
  // put your setup code here, to run once:
  pinMode(relay, OUTPUT);
 digitalWrite(relay, HIGH);
  timer.setInterval(7200000, watering);

}
 
void loop() {
  // put your main code here, to run repeatedly:
  timer.run();
}
 
void watering() {
  digitalWrite(relay, LOW);
  music();

  music();

  digitalWrite(relay, HIGH);
  noTone(8);
}
 
void music() {
  for(int thisNote = 0; thisNote < 26; thisNote++) {
      int noteDuration = 250 * noteDurations[thisNote];
      tone(8, melody[thisNote], noteDuration);
      int pauseBetweenNotes = noteDuration * 1.30;
      delay(pauseBetweenNotes);
      noTone(8);
  }
}

※ Picture

※ Youtube