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.

Solid State Relay by MOC3041 + BTA41600
This is a DC controlled Solid State Relay which can turn 230V AC equipment on and off. The output is like a NO normally open contacts of a relay and have to be in series with the Load like any other switch. This should not be used for large inductive loads like big motors. The Q1 transistor ...
Moisture Meter by 2N2222
Yesterday I tours an orchard of a friend. He consults about Moisture Meter Circuit. By this circuit uses for level moistness temple of the earth. Fine the value R2 give Meter read the value has 1mA. When the moistness in the earth is in the level that wants thus Meter will read level ...
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 (IC 4093) will work together ...
Plant Moisture Meter by IC 741
Stick the metal probes into a freshly watered plant and adjust R5 for a mid-scale meter deflection. The meter will monitor the soil wetness and the meter will indicate whether it is to moist or to dry. This circuit uses a dual power supply which could be created by two 9 volt batteries. S ...
Light Actuated Relay Circuits by Photo Transistor
The Light Actuated Relay Circuit be office circuit with the light. The prominent point of this circuit be meet the light has fast more using LDR control circuit the very. When the light leaves work suddenly. When meet the light makes Photo Transistor work bias current change it ha ...