ArduWiki: /* 2. Displaying Soil Moisture Sensor Value and Water Supply Necessity on LCD */

2025-03-26T13:16:23Z

2. Displaying Soil Moisture Sensor Value and Water Supply Necessity on LCD

← 이전 판		2025년 3월 26일 (수) 22:16 판
93번째 줄:		93번째 줄:
	This example displays the analog output value of the soil moisture sensor on an LCD and indicates whether water supply is necessary based on that value.		This example displays the analog output value of the soil moisture sensor on an LCD and indicates whether water supply is necessary based on that value.

	For more detailed information about the LCD, please refer to the [[LCD(Liquid Crystal Display)_EN]] document.		For more detailed information about the LCD, please refer to the [[LCD(Liquid Crystal Display) En\|LCD(Liquid Crystal Display)_EN]] document.

2025년 3월 26일 (수) 13:16에 ArduWiki님의 편집

2025-03-26T13:16:04Z

← 이전 판		2025년 3월 26일 (수) 22:16 판
93번째 줄:		93번째 줄:
	This example displays the analog output value of the soil moisture sensor on an LCD and indicates whether water supply is necessary based on that value.		This example displays the analog output value of the soil moisture sensor on an LCD and indicates whether water supply is necessary based on that value.

	For more detailed information about the LCD, please refer to the [[LCD(Liquid Crystal Display)]] document.		For more detailed information about the LCD, please refer to the [[LCD(Liquid Crystal Display)_EN]] document.

ArduWiki: /* 2. Displaying Soil Moisture Sensor Value and Water Supply Necessity on LCD */

2024-08-09T08:14:39Z

2. Displaying Soil Moisture Sensor Value and Water Supply Necessity on LCD

← 이전 판		2024년 8월 9일 (금) 17:14 판
93번째 줄:		93번째 줄:
	This example displays the analog output value of the soil moisture sensor on an LCD and indicates whether water supply is necessary based on that value.		This example displays the analog output value of the soil moisture sensor on an LCD and indicates whether water supply is necessary based on that value.

	For more detailed information about the LCD, please refer to the [[LCD (Liquid Crystal Display)]] document.		For more detailed information about the LCD, please refer to the [[LCD(Liquid Crystal Display)]] document.

ArduWiki: 새 문서: {{#seo:|title=Arduwiki : Arduino Soil moisture sensor(YL-69) Guide|title_mode=append|keywords=Arduino, Information Science, Maker Learning, Performance Assessment, Soil moisture sensor(YL-69), Arduino Project, Capstone Project, Arduino Example Code|description=This introduces how to control a Soil moisture sensor(YL-69) with Arduino (basic information, circuit, example code). It can be used in Information Science and Maker classes.}} 파일:토양수분센서사진.jpg|가운...

2024-08-09T08:14:00Z

새 문서: {{#seo:|title=Arduwiki : Arduino Soil moisture sensor(YL-69) Guide|title_mode=append|keywords=Arduino, Information Science, Maker Learning, Performance Assessment, Soil moisture sensor(YL-69), Arduino Project, Capstone Project, Arduino Example Code|description=This introduces how to control a Soil moisture sensor(YL-69) with Arduino (basic information, circuit, example code). It can be used in Information Science and Maker classes.}} 파일:토양수분센서사진.jpg|가운...

새 문서

{{#seo:|title=Arduwiki : Arduino Soil moisture sensor(YL-69) Guide|title_mode=append|keywords=Arduino, Information Science, Maker Learning, Performance Assessment, Soil moisture sensor(YL-69), Arduino Project, Capstone Project, Arduino Example Code|description=This introduces how to control a Soil moisture sensor(YL-69) with Arduino (basic information, circuit, example code). It can be used in Information Science and Maker classes.}}

[[파일:토양수분센서사진.jpg|가운데|class=coders100]]

== '''Overview''' ==
The soil moisture sensor (YL-69) is a sensor used to measure the moisture content of the soil. It is utilized in various fields such as agriculture, horticulture, and environmental monitoring, playing an important role in maintaining crop health and productivity. It can be used with microcontrollers like Arduino to monitor moisture levels in real-time.

==== Operating Principle ====
The YL-69 sensor uses two electrodes to measure the electrical conductivity of the soil. As the moisture content of the soil increases, the resistance value decreases, leading to an increase in electrical conductivity, which is converted into an analog signal and transmitted to the microcontroller.

== '''Specifications''' ==
{| class="wikitable"
!List
!Explanation
|-
|'''Sensitivity Adjustment'''
| The sensitivity can be adjusted by turning the variable resistor attached to the PCB.
|-
|'''Voltage'''
|3.3V - 5V
|-
|'''Output Mode'''
|Supports both digital and analog outputs
'''Digital Output''': Outputs LOW when the threshold is exceeded, and HIGH otherwise.
'''Analog Output''': Outputs a value between 0 and 1023.
|-
|''''Ease of Installation'''
| Equipped with fixed bolt holes for easy installation.
|-
|'''Size'''
| PCB: 3cm x 1.6cm
Probe: Approximately 2cm x 6cm
|-
|'''Power and Output Indicators'''
| Power indicator (red) and digital switch output indicator (green)
|-
|'''Chip'''
|LM393
|}

== '''Usage Example''' ==

=== 1. Checking Soil Moisture Sensor Output Values via Serial Monitor ===
You can check the analog output values through the serial monitor.

==== 1-1. Circuit Configuration ====
The YL-69 soil moisture sensor supports both digital and analog outputs, consisting of a total of 4 pins: VCC, GND, DO, and AO.

In the circuit diagram, if digital output is needed, connect the DO pin; if analog output is needed, connect the AO pin to the Arduino.

In this example, we require an analog output, so the AO pin is connected to the A0 pin of the Arduino.
{| class="wikitable"
!YL-69 Pin
!Arduino
|-
|VCC
|5V
|-
|GND
|GND
|-
|AO
|A0
|}
[[파일:토양수분센서YL69예제1회로.jpg|가운데|class=coders100]]

==== 1-2. Arduino Code ====
<syntaxhighlight lang="c++" line="1">
const int sensorPin = A0;

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

void loop() {
int sensorValue = analogRead(sensorPin); // Read sensor value
Serial.print("Soil moisture level : ");
Serial.println(sensorValue); // Print sensor value
delay(1000); // Wait a second
}
</syntaxhighlight>

==== 1-3. Execution Result ====
[[파일:토양수분센서yl69예제1실행결과.jpg|가운데|class=coders100]]

=== 2. Displaying Soil Moisture Sensor Value and Water Supply Necessity on LCD ===
This example displays the analog output value of the soil moisture sensor on an LCD and indicates whether water supply is necessary based on that value.

For more detailed information about the LCD, please refer to the [[LCD (Liquid Crystal Display)]] document.

==== 2-1. Circuit Configuration ====
{| class="wikitable"
!YL-69 Pin
!Arduino
!
!LCD Pin
!Arduino
|-
|VCC
|5V
| rowspan="4" |
|VCC
|5V
|-
|GND
|GND
|GND
|GND
|-
|AO
|A0
|SCA
|A4(Uno) / 20(Mega)
|-
|
|
|SCL
|A5(Uno) / 21(Mega)
|}
[[파일:토양수분센서yl69예제2회로.jpg|가운데|class=coders100]]

==== 2-2. Arduino Code ====
<syntaxhighlight lang="c++" line="1">
#include <Wire.h>
#include <LiquidCrystal_I2C.h>

// I2C LCD initialization: address 0x27, columns 16, rows 2
LiquidCrystal_I2C lcd(0x27, 16, 2);

// YL-69 sensor pin definition
const int sensorPin = A0;

void setup() {
lcd.init();
lcd.clear();
lcd.backlight(); // Turn on backlight
Serial.begin(9600); // Start serial communication
}

void loop() {
int sensorValue = analogRead(sensorPin); // Read sensor value
Serial.print("Soil moisture level: ");
Serial.println(sensorValue); // Output to serial monitor

// Display value on LCD
lcd.clear(); // Clear LCD screen
lcd.setCursor(0, 0); // Move cursor to the first column of the first row
lcd.print("water : ");
lcd.print(sensorValue); // Output sensor value
lcd.setCursor(0, 1); // Move cursor to the first column of the second row
if (sensorValue > 500)
lcd.print("Please Water");
else
lcd.print("Enough Water");

delay(1000); // Wait for 1 second
}
</syntaxhighlight>

==== 2-3. Execution Result ====
When there is no moisture, "Please Water" is displayed on the LCD.

[[파일:토양수분센서yl69예제2실행결과수분X.jpg|가운데|class=coders100]]

On the other hand, when there is moisture, "Enough Water" is displayed.

[[파일:토양수분센서yl69예제2실행결과수분O.jpg|가운데|class=coders100]]

=== 3. Utilizing Soil Moisture Sensor with LCD and LED ===
This example adds an LED to the previous example so that a blue light turns on when there is sufficient moisture, while the LED turns off when moisture is lacking, indicating the need for water.

==== 3-1. Circuit Configuration ====[[파일:토양수분센서YL69예제3회로.jpg|가운데|class=coders100]]

==== 3-2. Arduino Code ====
<syntaxhighlight lang="c++" line="1">
#include <Wire.h>
#include <LiquidCrystal_I2C.h>

// I2C LCD initialization: address 0x27, columns 16, rows 2
LiquidCrystal_I2C lcd(0x27, 16, 2);

// YL-69 sensor pin definition
const int sensorPin = A0;
const int ledPin = 3;

void setup() {
lcd.init();
lcd.clear();
lcd.backlight(); // Turn on backlight
Serial.begin(9600); // Start serial communication
pinMode(ledPin, OUTPUT);
}

void loop() {
int sensorValue = analogRead(sensorPin); // Read sensor value
Serial.print("Soil moisture level: ");
Serial.println(sensorValue); // Output to serial monitor

// Display value on LCD
lcd.clear(); // Clear LCD screen
lcd.setCursor(0, 0); // Move cursor to the first column of the first row
lcd.print("water : ");
lcd.print(sensorValue); // Output sensor value
lcd.setCursor(0, 1); // Move cursor to the first column of the second row
if (sensorValue > 500) {
lcd.print("Please Water");
digitalWrtie(ledPin, LOW); // Turn off the LED
}
else {
lcd.print("Enough Water");
digitalWrtie(ledPin, HIGH); // Turn on the LED
}

delay(1000); // Wait a second
}
</syntaxhighlight>

==== 3-3. Execution Result ====
When there is no moisture, "Please Water" is displayed on the LCD, and the LED is turned off.

[[파일:토양수분센서yl69예제3실행결과수분X.jpg|가운데|class=coders100]]

On the other hand, when there is moisture, "Enough Water" is displayed, and the LED is turned on.

[[파일:토양수분센서yl69예제3실행결과수분O.jpg|가운데|class=coders100]]

In addition, if water pumps are used together, it can be applied to various projects such as automatic irrigation systems.

== '''Purchase Link''' ==
[https://gongzipsa.com/shop/1699939374 GONGZIPSA]

Soil moisture sensor(YL-69) - 편집 역사

ArduWiki: /* 2. Displaying Soil Moisture Sensor Value and Water Supply Necessity on LCD */

2025년 3월 26일 (수) 13:16에 ArduWiki님의 편집

ArduWiki: /* 2. Displaying Soil Moisture Sensor Value and Water Supply Necessity on LCD */