Connecting Multiple Moisture sensor to Arduino Board with Code | Soil moisture sensor with Arduino with code

Electronics Curiosities April 29, 2023

Connecting 1 Moisture sensor to Arduino Board with code and circuit diagram

 1 Moisture sensor with Arduino circuit diagram

Code Explanation

Interface moisture sensor with an Arduino board.
First, the code defines a constant sensor with a value of A0. A0 is the analog pin on the Arduino board to which the moisture sensor is connected.

In the setup() function, the code begins serial communication with the computer at a baud rate of 9600 using the Serial.begin() function. So this will allow the Arduino to send data to and receive data from the computer through the USB cable.

In the loop() function, the code reads the analog signal from the moisture sensor using the analogRead() function and stores the value in the sensorValue variable. The value is then printed to the serial monitor using the Serial.print() and Serial.println() functions, with the text "Moisture Level" displayed before the value.

The code includes a delay() function with a parameter of 1000 milliseconds, which pauses the program for 1 sec before taking another reading. This is to prevent rapid and unnecessary readings that could interfere with the accuracy of the data.

This code provides a basic framework for reading data from the moisture sensor and displaying the readings in the serial monitor for further analysis or processing.

Code

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
//define sensor pin
#define sensor A0

void setup() {
  Serial.begin(9600); //start serial communication
}

void loop() {
  //read sensor
  int sensorValue = analogRead(sensor);
  Serial.print("Moisture Level: ");
  Serial.println(sensorValue);
  
  delay(1000); //wait for 1 second before taking readings again
}


Serial Monitor Data

Serial Monitor value of moisture sensor


Connecting 2 Moisture sensor to Arduino Board with code and Circuit Diagram

2 Moisture sensor with Arduino circuit diagram

Serial Monitor Data for 2 moisture sensors

Serial Monitor Data 


Code

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
//define sensor pins
#define sensor1 A0
#define sensor2 A1

void setup() {
  Serial.begin(9600); //start serial communication
}

void loop() {
  //read sensor 1
  int sensor1Value = analogRead(sensor1);
  Serial.print("Sensor 1: ");
  Serial.println(sensor1Value);
  
  //read sensor 2
  int sensor2Value = analogRead(sensor2);
  Serial.print("Sensor 2: ");
  Serial.println(sensor2Value);
  
  delay(1000); //wait for 1 second before taking readings again
}


Connecting 3 Moisture sensor to Arduino Board with code and Circuit Diagram

3 Moisture sensor with Arduino circuit diagram

Code

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
//define sensor pins
#define sensor1 A0
#define sensor2 A1
#define sensor3 A2

void setup() {
  Serial.begin(9600); //start serial communication
}

void loop() {
  //read sensor 1
  int sensor1Value = analogRead(sensor1);
  Serial.print("Sensor 1: ");
  Serial.println(sensor1Value);
  
  //read sensor 2
  int sensor2Value = analogRead(sensor2);
  Serial.print("Sensor 2: ");
  Serial.println(sensor2Value);
  
  //read sensor 3
  int sensor3Value = analogRead(sensor3);
  Serial.print("Sensor 3: ");
  Serial.println(sensor3Value);
  
  delay(1000); //wait for 1 second before taking readings again
}


Connecting 4 Moisture sensor to Arduino Board with code and Circuit Diagram

4 Moisture sensor with Arduino circuit diagram

Code

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
//define sensor pins
#define sensor1 A0
#define sensor2 A1
#define sensor3 A2
#define sensor4 A3

void setup() {
  Serial.begin(9600); //start serial communication
}

void loop() {
  //read sensor 1
  int sensor1Value = analogRead(sensor1);
  Serial.print("Sensor 1: ");
  Serial.println(sensor1Value);
  
  //read sensor 2
  int sensor2Value = analogRead(sensor2);
  Serial.print("Sensor 2: ");
  Serial.println(sensor2Value);
  
  //read sensor 3
  int sensor3Value = analogRead(sensor3);
  Serial.print("Sensor 3: ");
  Serial.println(sensor3Value);
  
  //read sensor 4
  int sensor4Value = analogRead(sensor4);
  Serial.print("Sensor 4: ");
  Serial.println(sensor4Value);
  
  delay(1000); //wait for 1 second before taking readings again
}


Thank You!
Have A Great Day!


Reactions