Arduino Irrigation and Plant Watering Circuit Schematic using Soil Moisture Sensor

Posted by Heru Susanto on 8:19 AM

Autometronicschool. - This is one of electronic circuit schematic for you who want to develop your efford in Arduino programming and also supported with many sensor knowledge in this time.

In here we will show you one of the Arduino application to build irrigation and plan watering circuit schematic that supported with soil moisture sensor like shown in Figure 1 below. The main component used in this circuit are Arduino, LCD monitor, Indicator, and Soil Moisture sensor that easy found in your country.

Electronic Circuit

Figure 1. Arduino Irrigation and Plant Watering Circuit Schematic using Soil Moisture Sensor (Source: Circuitstoday.com)

Component Parts

  1. Arduino Module
  2. Soil Moisture Sensor
  3. LEDs
  4. Resistors
  5. Buzzer
  6. Transistors
  7. LCD Module


Description

This is Arduino Irrigation and Plant Watering Circuit Schematic using Soil Moisture Sensor for you. According Circuitstoday site describe that the soil moisture sensor module used here have two output pins ( Digital output and Analog output ). The output from the probe of the moisture sensor is compared with a reference value using a lm393 comparator. The reference value can be changed by turning the potentiometer in the module. The digital pin gives an active low output when the soil is wet. Here we are using the analog output from the module by connecting it to one of the analog pins of Arduino. While using the analog output the wet detection value can be set/adjusted within the program itself.

As shown in the circuit diagram, a float switch is connected to one of the analog pins of Arduino and a 1K Ohm resistor is used to pulled up the line. Analog pins of Arduino can also be used as digital inputs. The status of the tank is identified by checking the output of the float switch. Arduino reads the voltage dropped across the pull up resistor for sensing the level of water in the tank.  Two LEDs are connected to the 2nd and 3rd pin of Arduino to show the moisture status and tank status respectively. And the 4th pin links to the base of a BC547 transistor which in turn drives the 12 V DC motor.

And now you can read more about this Arduino Irrigation and Plant Watering Circuit Schematic using Soil Moisture Sensor from original source with click the link here easily.



Nama Anda
New Johny WussUpdated: 8:19 AM

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