Hey!
I'm new to this Arduino, and my first project is an automatic watering system for a plant of mine.
I've got most of the program working, only problem is i cant stop my motor aka. pump, unless i read my water level again. I'm trying to only have the pump running for 10 secs, to not make the plant overflow.
Any inputs, or assistance is very much appreciated!
(some of the int's are in danish)
Regards Pefi
#include <Wire.h> // Comes with Arduino IDE
#include <LiquidCrystal_I2C.h>
const int vand_niveau = A3; // Vand niveau i reservoir.
const int vand = 8; // Spændings kontrol for vand lavt niveau.
const int fugtighed = 4; // Spændings kontrol for jord fugtighed.
const int jord = A0; // Jord fugtighed.
int motor_pwm = 9; // Kontrol af pumpe mængde.
int output_vand; // Vand niveau skrives hertil.
int output_jord; // Jord fugt skrives hertil
unsigned long int_tim = 0;
unsigned long pump_tim = 0;
unsigned long pump_tim_cur_millis = 0;
unsigned long display_tim = 0; // Serial or display timer
unsigned long display_backlight_tim = 0;
LiquidCrystal_I2C lcd(0x3F, 2, 1, 0, 4, 5, 6, 7, 3, POSITIVE); // LCD I2C addresse (0x3F)
void setup() {
Serial.begin(9600); // Kommunikations vindue
lcd.begin(16, 2); // Initialize the LCD 16 Char 2 Lines, turn on backlight
for (int i = 0; i < 6; i++) // ------- Quick 6 blinks of backlight ---------
{
lcd.backlight();
delay(150);
lcd.noBacklight();
delay(150);
}
lcd.backlight(); // Finish with backlight on
pinMode (vand, OUTPUT);
pinMode (fugtighed, OUTPUT);
pinMode (motor_pwm, OUTPUT);
pinMode (LED_BUILTIN, OUTPUT);
Serial.begin(9600);
// set up the LCD's number of columns and rows:
lcd.begin(16, 2);
// Print a message to the LCD.
lcd.print("Analyserer fugt");
lcd.setCursor(0, 1);
lcd.print("vent venligst");
Serial.println("Analyserer fugt:");
delay(2000);
lcd.clear();
}
void loop() {
// when characters arrive over the serial port...
if (Serial.available()) {
// wait a bit for the entire message to arrive
//delay(100);
// clear the screen
lcd.clear();
// read all the available characters
while (Serial.available() > 0) {
// display each character to the LCD
lcd.write(Serial.read());
}
}
// Turns on the VCC for the humidity sensor once sensor every hour, and then reads the value - also check water level in holding tank
if (millis() - int_tim >= 6000) { // OBS_1 <- Den her tid skal ændres i forbindelse med test, men ikke til mindre end 2000
digitalWrite(vand, HIGH);
digitalWrite(fugtighed, HIGH);
if (millis() - int_tim >= 6250) { // OBS <- Den her tid skal være 250 ms større end OBS_1
output_vand = analogRead(vand_niveau);
output_vand = map(output_vand, 0, 400, 0, 100);
output_jord = analogRead(jord);
output_jord = map(output_jord, 1023, 400, 0, 100);
//Serial.print("Moisture : ");
//lcd.print("Fugt:");
//lcd.print(output_vand);
//lcd.print("%");
//lcd.setCursor(0, 1);
//lcd.print("Plante:");
//lcd.print(output_jord);
//lcd.print("%");
//Serial.print(output_vand);
//Serial.print("%");
//lcd.clear();
int_tim = millis();
digitalWrite(vand, LOW);
digitalWrite(fugtighed, LOW);
}
}
//unsigned long currentMillis = millis();
if (output_jord < 40 // Fugtighed I plante under 40% start motor
&& output_vand > 40) { // Fugtighed I reservoir over 40% start motor
analogWrite(motor_pwm, 200);
}
else {
analogWrite (motor_pwm, 0);
}
pump_tim_cur_millis = millis();
// If the pump is "ON" and 1000 ms have elapsed, turn off the pump
if (motor_pwm, 200); {
if (millis() - pump_tim_cur_millis >= 2000) {
analogWrite (motor_pwm, 0);
}
}
// If water level in tank is below threshold, blink the display with 1000 ms cycle
if (output_vand < 40) {
if (millis() - display_backlight_tim >= 1000) {
lcd.backlight();
}
if (millis() - display_backlight_tim >= 2000) {
lcd.noBacklight();
display_backlight_tim = millis();
}
}
// Write to the display every 1000 ms
if (millis() - display_tim >= 1000) {
lcd.clear();
Serial.print("Moisture : ");
lcd.print("Fugt:");
lcd.print(output_vand);
lcd.print("%");
lcd.setCursor(0, 1);
lcd.print("Plante:");
lcd.print(output_jord);
lcd.print("%");
Serial.print(output_vand);
Serial.print("%");
display_tim = millis();
}
}
Test.ino.ino (4.11 KB)
