Simple Soil Moisture Meter with 741


Posted on Aug 19, 2012

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.


Simple Soil Moisture Meter with 741
Click here to download the full size of the above Circuit.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Fish Tank Lights and Temperature Detector
5W RF power amplifier
Turntable Rumble Filter
3A adjustable regulator using LM350
Battery charger using LM350
Triac Applications
FM Radio Jammer With 2N2222 Transistor
Mains Slave Switcher
Medical ultrasonic atomizer 3
Mixing analog multiplier integrated circuit MC1496
Thyristor AC automatic voltage regulator circuit diagram
High-voltage isolation switch operation display circuit



Top