Automatic Plant Waterer [Alarm Based]

This project utilizes a solenoid valve and the TimeAlarms library to water a small potted indoor plant at specific times of the day.

May 21, 2018

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home automation

plants

Components and supplies

Power MOSFET N-Channel

AA Batteries

Solenoid Valve

Project description

Code

Automatic Plant Waterer IDE Source Code

c_cpp

Built in Arduino IDE

1#include <TimeAlarms.h>
2#include <Time.h>
3#include <TimeLib.h>
4
5int   solenPin = 9;
6int ledPin = 10;
7
8void setup() {
9  pinMode(solenPin, OUTPUT);
10   pinMode(ledPin, OUTPUT);
11  setTime(3,07,0,21,3,2018);
12  Alarm.alarmRepeat(10,   0, 0, water);
13  Alarm.alarmRepeat(19, 0, 0, water);
14}
15
16void loop() {
17   Alarm.delay(1000);
18}
19
20void water() {
21  int t = second() + 30;
22   digitalWrite(solenPin, HIGH);
23  digitalWrite(ledPin, HIGH);
24  delay(30000);
25   digitalWrite(solenPin, LOW);
26  digitalWrite(ledPin, LOW);
27  setTime(hour(),minute(),t,day(),month(),year());
28}
29

#include <TimeAlarms.h>
#include <Time.h>
#include <TimeLib.h>

int   solenPin = 9;
int ledPin = 10;

void setup() {
  pinMode(solenPin, OUTPUT);
   pinMode(ledPin, OUTPUT);
  setTime(3,07,0,21,3,2018);
  Alarm.alarmRepeat(10,   0, 0, water);
  Alarm.alarmRepeat(19, 0, 0, water);
}

void loop() {
   Alarm.delay(1000);
}

void water() {
  int t = second() + 30;
   digitalWrite(solenPin, HIGH);
  digitalWrite(ledPin, HIGH);
  delay(30000);
   digitalWrite(solenPin, LOW);
  digitalWrite(ledPin, LOW);
  setTime(hour(),minute(),t,day(),month(),year());
}

Automatic Plant Waterer IDE Source Code

c_cpp

Built in Arduino IDE

1#include <TimeAlarms.h>
2#include <Time.h>
3#include <TimeLib.h>
4
5int  solenPin = 9;
6int ledPin = 10;
7
8void setup() {
9  pinMode(solenPin, OUTPUT);
10  pinMode(ledPin, OUTPUT);
11  setTime(3,07,0,21,3,2018);
12  Alarm.alarmRepeat(10,  0, 0, water);
13  Alarm.alarmRepeat(19, 0, 0, water);
14}
15
16void loop() {
17  Alarm.delay(1000);
18}
19
20void water() {
21  int t = second() + 30;
22  digitalWrite(solenPin, HIGH);
23  digitalWrite(ledPin, HIGH);
24  delay(30000);
25  digitalWrite(solenPin, LOW);
26  digitalWrite(ledPin, LOW);
27  setTime(hour(),minute(),t,day(),month(),year());
28}
29

#include <TimeAlarms.h>
#include <Time.h>
#include <TimeLib.h>

int  solenPin = 9;
int ledPin = 10;

void setup() {
  pinMode(solenPin, OUTPUT);
  pinMode(ledPin, OUTPUT);
  setTime(3,07,0,21,3,2018);
  Alarm.alarmRepeat(10,  0, 0, water);
  Alarm.alarmRepeat(19, 0, 0, water);
}

void loop() {
  Alarm.delay(1000);
}

void water() {
  int t = second() + 30;
  digitalWrite(solenPin, HIGH);
  digitalWrite(ledPin, HIGH);
  delay(30000);
  digitalWrite(solenPin, LOW);
  digitalWrite(ledPin, LOW);
  setTime(hour(),minute(),t,day(),month(),year());
}

Downloadable files

Circuit Diagram

Built and Tested with Arduino Uno

Circuit Diagram

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