Hi, bros
recently i have made auto watering code for observation and
Thank you very much for your help so far.
Components are
solenoide valve connected with relay.
soil moisture sensor.
arduino uno r3.
and goal is
1.keep watering about 30 sec if sensor value rising suddenly
so i think the multiple if will be the answer.
// AUTOMATIC IRRIGATION SYSTEM TESTED BY LED BUILT IN
int SMS = A0; // soil moisture sensor
unsigned long pretime = 0;
const long onvalve = 30000;
//setup
void setup ()
{
pinMode(relay, OUTPUT);
Serial.begin (9600);
}
//loop
void loop ()
{
float raw = analogRead(SMS);
float present = map(raw, lowest, highest, 0, 100); // SET 0~100 %
Serial.println(present);
unsigned long currtime = millis();
float to be = 40; // to be 40 %
Serial.println(to be);
delay(1000);
{
if (present < to be)
{
digitalWrite(relay, HIGH);
}
else if ((present > to be)&&(currtime - pretime >= onvalve))
{
digitalWrite(relay, LOW);
}
else
{
digitalWrite(relay, HIGH);
}
}
currtime = pretime;
}
i think
if(); If soil moisture is below target, relay operation.
else if. Stop if soil moisture is above target and relay running time is more than 30 seconds.
else If it's neither of them.
It's not working right now.
Should I use boolean to make it work?
thx.
Hi,bros
im trying to make auto irrigation code with timer by timer.h
Components are
solenoide valve connected with relay.
soil moisture sensor.
arduino uno r3.
the purpose is
1.keep watering about 30 sec if sensor value rising suddenly
code looks not bad but he acts like sick. wanna make him agile.
the code is here (that is 2nd version)
#include <Timer.h>
Timer t;
int SMS = A0; // soil moisture sensor
int realy = 13; // solenoide valve connected with relay.
//setup
void setup()
{
Serial.begin (9600);
t.every(1000, watering); // delay replacement
pinMode(relay, OUTPUT);
}
//loop
void loop()
{
t.update();
}
void watering()
{
float raw = analogRead(SMS);
// SMS Analog Input = raw
float mappedraw = map(raw, lowest, highest, 0 , 100 ); // SET 0 TO 100 %
Serial.print("mapped raw percnet = ");
Serial.println(mappedraw);
float expectedpercent = 40;
Serial.print("expectedpercent = ");
Serial.println(expectedpercent);
if (mappedraw < expectedpercent)
{
t.pulse(relay, 20000, HIGH); // delay replacement and part of watering, but it just act 10sec
}
}
plz give me some advices bros
thx
throw away the timer libary and make your own time management.
The easier you make it to read and copy your code the more likely it is that you will get help
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the compiler don´t like your sketch
That looks close but the timer library stuff is really hard for me to understand. Can you have more than one timer?
-jim lee
i try to make it
but it still slow.
int SMS = A0;
unsigned long t2 = 0;
const long delaytime = 30000;
//setup
void setup ()
{
pinMode(relay, OUTPUT);
Serial.begin (9600);
}
//loop
void loop ()
{
float raw = analogRead(SMS);
float rawmapped= map(raw, lowest, highest, 0, 100);
Serial.println(rawmapped);
unsigned long t1 = millis();
float expectedpercent = 40;
Serial.println(expectedpercent);
delay(1000);
if (t1 - t2 >= delaytime)
{
if (rawmapped < expectedpercent)
{
digitalWrite(relay, HIGH);
}
else
{
digitalWrite(relay, LOW);
}
t2 = t1;
}
}
aha, do u mean one more f() ? triggerd by timer?
i ll try that
thx agian
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I didn't mean to.
yes, millis(); with multi if will be the answer i think.
if u don't mind plz give me some feedback of above new code.
thx again.
I can take a look in my sketch box to find a similar task.
bruggi
June 3, 2021, 9:19am
15
after adding definitions for relay,lowest and highest, the sketch will compile without errors.
bruggi
June 3, 2021, 10:02am
17
sorry, i'm afraid that wasn't the problem after all.
yes,correct!
and also if measured value is higher than expectaion, wanna open valve for 30.
value is low -> open valve for 30s
value was low, but now is high -> open valve for 30s from when it was getting high.
value was high, more than 30s high -> close valve.
latest version is here, but still act wrong.
int SMS = A0; //soil moisture sensor
int relay =13;
unsigned long pretime = 0;
unsigned long curtime = 0;
const long onvalve = 30000;
//setup
void setup ()
{
pinMode(relay, OUTPUT);
Serial.begin (9600);
pretime = millis();
}
//loop
void loop ()
{
float raw = analogRead(SMS);
float mappedraw = map(raw, 100, 200, 0, 100); // in AIR = 100, in WATER = 200, SET 0~100 %
Serial.println(mappedraw);
curtime = millis();
float expectedpercent = 40;
Serial.println(expectedpercent);
delay(1000);
{
if (mappedraw < expectedpercent)
{
digitalWrite(relay, HIGH);
}
else if ((mappedraw> expectedpercent) && (curtime - pretime >= onvalve))
{
digitalWrite(relay, HIGH);
}
else
{
digitalWrite(relay, LOW);
}
}
pretime = curtime;
}
bruggi
June 3, 2021, 10:24am
19
i cant understand this
digitalWrite(relay, HIGH); // open valve
delay (30000);
digitalWrite(relay, LOW); // close valve
If your project does not do anything else, you only have to measure in a loop and decide in an if statement whether the valve should be opened or not.
bruggi
June 3, 2021, 10:24am
20
void loop ()
Serial.println(expectedpercent);
if (rawmapped < expectedpercent)
delay(cycletime);