This electronic circuit is a water level Indicator. It is simple and practical measure and know the level of reservoir. The component IC CMOS 4066 used as switcher on any level detector/sensor that connect the negative polarity pin of each LED to ground. Buzzer will be sounded if full level sensor achieved. It's a cool electronic circuit.
Features:
Power Supply 6 - 15 volts
Measuring four different levels
To give voice warning about filling or emptying the reservoir, "exactly according to the delicate"
Very small and components are cheap and available
Parts Lits:
- IC CMOS CD4066
- Transistor BC148
- Resistance 330 Ohm 4x
- Resistance to 180 KOhm 4x
- Four pairs optical multi-color LED
- Small buzzer/bell 6-15 volt
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