Arduino Master Course Project 24 : Automatic Plant Watering System Using Arduino

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Introduction:

Whenever we go out of town for few days, we always used to worry about our plants as they need water on regular basis. So here we are making an Automatic Plant Irrigation System using Arduino, which automatically provides water to your plants and keep you updated by sending message to your cell phone.
In This Plant Watering System, Soil Moisture Sensor checks the moisture level in the soil and if moisture level is low then Arduino switches ON a water pump to provide water to the plant. Water pump gets automatically off when system finds enough moisture in the soil. This system is very useful in Farms, gardens, home etc. This system is completely automated and there is no need for any human intervention.



Soil moisture sensor has 3 pins, VCC, ground, and Output.
We have connected the VCC pin with 5 volt pin, ground pin with the ground pin and output pin with PIN no 7 of arduino.
Relay module works on 5-volt power supply. It has three pins, VCC, ground, and input. Connect the VCC pin with 5-volt pin, ground pin with the ground pin, and input pin with pin number 11 of Arduino.
5-volt water pump has two terminals, positive and negative.
We are using a 9 volt battery to run the DC water pump.
Connect the red wire of pump with the normally open pin of relay, and connect the black wire of pump with the negative terminal of the battery.
Connect the common pin of relay, with the positive terminal of the battery.


I hope you enjoyed the video, and learned something from it.
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