Plant soil moisture meter and automatic controller Diagram

I like planting trees, because trees are more useful to us. However, I always have problems with moisture content of soil,Each plant needs water is not as same. Watering or soil moisture is not good. May cause damage to our trees. With these problems, I think the electronic system to solve this problem. For example, to check moisture level of the soil. We see from the outside, may not be good enough. Sometimes we see that the soil is dry.But it may be appropriate to plant moisture that, when we add water. It may be possible to root rot. To determine these characteristics. It saves water, too. I collected several circuits below.

1. Automatic watering a tree

A trees should be taken care of as well. This circuit allows for watering trees, can be done automatically.When soil moisture levels decrease, to values that are defined.(Which can be determined by the resistance of R1.) A relay RY1 starts.This relay can be used to control the alarm, or Open water valve for watering plants.The probe used is a large copper wire, or a metal rod with a length of about 120 mm.
On the end of each probe, attached to the insulation sheet, which is right size.(about 40 x 20 mm.) The probe should be straight and parallel bars, each separated by 15 mm. The VR1 to customize the sensitivity of the circuit.

Plant soil moisture meter and automatic controller

2. Moisture Meter by 2N2222

Plant soil moisture meter and automatic controller #2

Yesterday I tours an orchard of a friend. He consults about Plant soil moisture meter and automatic controller #3

4. Moisture Activated Relay by Bipolar Transistor

Today we try to build warn the moistness or Moisture Activated better. Or do go to use be warn it rains. Because of be the circuit is simple. Follow the circuit will think use Bipolar Transistor just one only. When measure touch the moistness make the electric current flows through to pin B of Q1 get then make it works. The Relay as a result work apply the work controls electric other appliances. By the rapidity of this circuit can control with R2 – 1M. If you use power supply the size is 6V-9V. Should use Relay 6V-9V resistance coil sizes about 500ohm. For the transistor use 2N2222 or BC549 or C1815 etc. Then make the circuit s work well sir.

Plant soil moisture meter and automatic controller #4

5. LED warning water the plants with ic 4093

Electronic users love trees. But no time and work and forget Enjoy water the plants.So the trees dry out.This circuit solves this problem.It also allows us to not water the plants with too often.
Operation of the circuit. When the supply to the circuit. IC1 / 1 Plant soil moisture meter and automatic controller #5

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