Difference between revisions of "Moisture sensor"
From Geeetech Wiki
(→Specification) |
|||
| Line 1: | Line 1: | ||
==Overview== | ==Overview== | ||
| + | [[File:Moisture sensor.jpg]] | ||
| + | |||
This Moisture Sensor can detect the moisture of the soil around the sensor, which is ideal for monitoring the indoor plants or the soil moisture in your garden. It can be very to use, just insert it into the soil and then read it. | This Moisture Sensor can detect the moisture of the soil around the sensor, which is ideal for monitoring the indoor plants or the soil moisture in your garden. It can be very to use, just insert it into the soil and then read it. | ||
| Line 15: | Line 17: | ||
==Wiring diagram== | ==Wiring diagram== | ||
| + | [[File:Moisture wiring.jpg]] | ||
| + | |||
| + | [[File:Moisture Table.jpg]] | ||
| + | |||
| + | ==Example code== | ||
/* | /* | ||
# Example code for the moisture sensor | # Example code for the moisture sensor | ||
Latest revision as of 06:51, 17 September 2012
Overview
This Moisture Sensor can detect the moisture of the soil around the sensor, which is ideal for monitoring the indoor plants or the soil moisture in your garden. It can be very to use, just insert it into the soil and then read it.
This sensor uses the two probes to pass current through the soil, and then it reads that resistance to get the moisture level. More water makes the soil conduct electricity better, while dry soil conducts electricity is poor.
Specification
- Power supply: 3.3v or 5v
- Output voltage signal: 0~4.2v
- Current: 35mA
- Value range:
- 0 ~300 : dry soil
- 300~700 : humid soil
- 700~950 : in water
- 0 ~300 : dry soil
Wiring diagram
Example code
/*
# Example code for the moisture sensor
# Editor : Lauren
# Date : 13.01.2012
# Version : 1.0
# Connect the sensor to the A0(Analog 0) pin on the Arduino board
# the sensor value description
# 0 ~300 dry soil
# 300~700 humid soil
# 700~950 in water
*/
void setup()
{
Serial.begin(9600);
}
void loop()
{
Serial.print("Moisture Sensor Value:");
Serial.println(analogRead(0));
delay(100);
}
How to buy
Click here to buy the Moisture Sensor
