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Electronics Schematics - W

Sensors and Detectors:
Water / Moisture Sensors Circuits

12 Volt Sump Pump Control

12 Volt Toilet Tank Refiller

Digital Water Wave/Tide/Level Meter (PIC16F876)

Hot Water Tank Indicator

Simple Moisture Detector Circuit

Plant Moisture Monitor

Plants Watering Watcher:  Varying brightness LED signals the necessity to water a plant. Very Low consumption,3V powered Circuit

Plants Watering Watcher 1

Plants Watering Watcher 2

Rain Detector

Rain Detector:

Shower Stopper:

Simple Emergency Sump Pump Control:  Sump Pump Control for12V DC Bilge Pump

Water Activated Relay

Water Level Alarm

Water Level Sensor

Water-Level Sensor Uses Hysteresis:  08/21/00 Electronic Design - Ideas for Design / A low-voltage electronic circuit that senses upper and lower water levels is often used for alarms and sump-pump activation. Since an electronic sensor has no moving mechanical parts, it eliminates problems with corrosion and wear and tear.

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