This repository contains the code and circuit design for an automatic irrigation system based on 8051 microcontroller. The system uses a soil moisture sensor to monitor soil conditions and ...

Abstract: The non-power supply micro-moisture sensor converts changes in micro-moisture content into electrical signals, crucial for monitoring SF6 gas micro-moisture content in GIS systems. It ...

The circuit takes a 9 VDC input and steps down the voltages to 5 VDC using an LM7805 voltage regulator. The 0.22 µF and 0.1µF capacitors act as coupling capacitors, on the input and output voltage of ...

If you are designing your own intelligent “Graden Computer” with an optional digital plant moisture sensor/water pump controller that lights an LED to alert the user when it is time to water a potted ...

In a way, the magic of a soil moisture sensor’s functionality boils down to a simple RC circuit. But of course, in practice there is a bit more to it than that. [rbaron] explains exactly how ...