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Water Level Indicator Circuit using ULN2003

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Electrical Knowledge

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62,061 次观看 • 7 个月前 •via X (Twitter)

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Water level indicator.
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Water level indicator.

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Never let your water tank overflow again. 🚰 Want to automate your home on a budget? Start with smart water management. ⚡️ You can build this simple water level indicator circuit on a breadboard for under $5 using standard transistors and LEDs. Here’s the step-by-step schematic breakdown Watch how a few BC547 transistors and LEDs form a 4-stage water level detector—from simple schematic to prototype 👇
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