SEN0193

SEN0193 Datasheet

Capacitive Soil Moisture Sensor SKU:SEN0193

Part	Datasheet
SEN0193	SEN0193 (pdf)

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Capacitive Soil Moisture Sensor SKU:SEN0193 Capacitive Soil Moisture Sensor Contents • 1 Introduction • 2 Specification • 3 Tutorial Requirements Connection Diagram Calibration Code Calibration Calibration Range Section Settings Test Code • 4 FAQ Introduction Our soil moisture sensor measures soil mositure levels by capacitive sensing rather than resistive sensing like other sensors on the market. It is made of corrosion resistant materal which gives it an excellent service life. Insert it in to the soil around your plants and impress your friends with real-time soil moisture data! This module includes an on-board voltage regulator which gives it an operating voltage range of ~ 5.5V. It is perfect for low-voltage MCUs, both 3.3V and 5V. For compatibility with a Raspberry Pi it will need an ADC converter. This sensor is compatible with our 3-pin "Gravity" interface, which can be directly connected to the Gravity I/O expansion shield. Specification • Operating Voltage ~ VDC • Output Voltage 0 ~ 3.0VDC • Operating Current 5mA • Interface PH2.0-3P • Dimensions x inches L x W • Weight 15g Tutorial Requirements • Hardware UNO x1 Capacitive Soil Moisture Sensor x1 Jumper Cable x3 • Software Arduino IDE V1.6.5 Click to Download Arduino IDE Connection Diagram Calibration Code void setup Serial.begin 9600 // open serial port, set the baud rate as 9600 bps void loop int val = analogRead 0 //connect sensor to Analog 0 Serial.print val //print the value to serial port delay 100 ; Calibration Range Open the serial port monitor and set the baud rate to 9600 Record the sensor value when the probe is exposed to the air as "Value This is the boundary value of dry soil “Humidity 0%RH” Take a cup of water and insert the probe into it no further than the red line in the diagram Record the sensor value when the probe is exposed to the water as "Value This is the boundary value of moist soil “Humidity 100%RH” The components on this board are NOT waterproof, do not expose to moisture further than the red line. If you want to protect components from the elements, try using a length of wide heat shrink tubing around the upper-section of the board. There is an inverse ratio between the sensor output value and soil moisture. Section Settings The final output value is affected by probe insertion depth and how tight the soil packed around it is. We regard "value_1" as dry soil and "value_2" as soaked soil. This is the sensor detection range. For example Value_1 = 520 Value_2 = The range will be divided into three sections dry, wet, water. Their related values are: • Dry 520 430] • Wet 430 350] • Water 350 260] Test Code This example reads Capacitive Soil Moisture Sensor. Created 2015-10-21 By berinie Chen GNU Lesser General Public License. See for details. All above must be included in any redistribution /*********Notice and Trouble shooting************* 1.Connection and Diagram can be found here: 2.This code is tested on Arduino Uno. 3.Sensor is connect to Analog 0 port. const int AirValue = 520 //you need to replace this value with Value_1 const int WaterValue = 260 //you need to replace this value with Value_2 int intervals = AirValue - WaterValue /3 int soilMoistureValue = 0 void setup Serial.begin 9600 // open serial port, set the baud rate to 9600 bps void loop soilMoistureValue = analogRead A0 //put Sensor insert into soil if soilMoistureValue > WaterValue && soilMoistureValue < WaterValue + int ervals Serial.println "Very Wet" else if soilMoistureValue > WaterValue + intervals && soilMoistureValue < AirValue - intervals Serial.println "Wet" else if soilMoistureValue < AirValue && soilMoistureValue > AirValue - in tervals Serial.println "Dry" delay 100 ; There are no questions about this product yet. For any questions/advice/cool ideas to share with us, please visit DFRobot Forum. Powered By DFRobot 2008-2017

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Capacitive Soil Moisture Sensor SKU:SEN0193

Capacitive Soil Moisture Sensor

Contents
• 1 Introduction
• 2 Specification
• 3 Tutorial

Requirements Connection Diagram Calibration Code Calibration

Calibration Range Section Settings Test Code
• 4 FAQ

Introduction

Our soil moisture sensor measures soil mositure levels by capacitive sensing rather than resistive sensing like other sensors on the market. It is made of corrosion resistant materal which gives it an excellent service life. Insert it in to the soil around your plants and impress your friends with real-time soil moisture data! This module includes an on-board voltage regulator which gives it an operating voltage range of ~ 5.5V. It is perfect for low-voltage MCUs, both 3.3V and 5V. For compatibility with a Raspberry Pi it will need an ADC converter. This sensor is compatible with our 3-pin "Gravity" interface, which can be directly connected to the Gravity I/O expansion shield.

Specification
• Operating Voltage ~ VDC
• Output Voltage 0 ~ 3.0VDC
• Operating Current 5mA
• Interface PH2.0-3P
• Dimensions x inches L x W
• Weight 15g

Tutorial

Requirements
• Hardware UNO x1 Capacitive Soil Moisture Sensor x1 Jumper Cable x3
• Software Arduino IDE V1.6.5 Click to Download Arduino IDE

Connection Diagram

Calibration Code
void setup Serial.begin 9600 // open serial port, set the baud rate as 9600 bps
void loop
int val = analogRead 0 //connect sensor to Analog 0 Serial.print val //print the value to serial port delay 100 ;

Calibration Range

Open the serial port monitor and set the baud rate to 9600 Record the sensor value when the probe is exposed to the air as "Value This is the boundary
value of dry soil “Humidity 0%RH” Take a cup of water and insert the probe into it no further than the red line in the diagram Record the sensor value when the probe is exposed to the water as "Value This is the boundary
value of moist soil “Humidity 100%RH”

The components on this board are NOT waterproof, do not expose to moisture further than the red line. If you want to protect components from the elements, try using a length of wide heat shrink tubing around the upper-section of the board. There is an inverse ratio between the sensor output value and soil moisture.

Section Settings

The final output value is affected by probe insertion depth and how tight the soil packed around it is. We regard "value_1" as dry soil and "value_2" as soaked soil. This is the sensor detection range. For example Value_1 = 520 Value_2 = The range will be divided into three sections dry, wet, water. Their related values are:
• Dry 520 430]
• Wet 430 350]
• Water 350 260]

Test Code

This example reads Capacitive Soil Moisture Sensor.

Created 2015-10-21 By berinie Chen

GNU Lesser General Public License. See for details. All above must be included in any redistribution
/***********Notice and Trouble shooting*************** 1.Connection and Diagram can be found here:
2.This code is tested on Arduino Uno. 3.Sensor is connect to Analog 0 port.
const int AirValue = 520 //you need to replace this value with Value_1 const int WaterValue = 260 //you need to replace this value with Value_2 int intervals = AirValue - WaterValue /3 int soilMoistureValue = 0 void setup

Serial.begin 9600 // open serial port, set the baud rate to 9600 bps void loop soilMoistureValue = analogRead A0 //put Sensor insert into soil if soilMoistureValue > WaterValue && soilMoistureValue < WaterValue + int ervals

Serial.println "Very Wet" else if soilMoistureValue > WaterValue + intervals && soilMoistureValue < AirValue - intervals

Serial.println "Wet" else if soilMoistureValue < AirValue && soilMoistureValue > AirValue - in tervals

Serial.println "Dry" delay 100 ;

There are no questions about this product yet. For any questions/advice/cool ideas to share with us, please visit DFRobot Forum.

Powered By DFRobot 2008-2017

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Datasheet ID: SEN0193 509100