LED Water Level Circuit with ULN2003 - PCB Tutorial
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YouTubeElectronic Projects Stefano91ste
LED Water Level Circuit with ULN2003 - PCB Tutorial
$2 for 2-Layer PCBs & $7 for 4-Layer PCBs: https://jlcpcb.com This is a LED circuit for measuring water level, based on ULN2003 a darlington transistor arrays IC. The water level is represented on 7 LEDs, where Red LED indicates lack of water and last green LED indicates 100% of the full tank. This circuit is designed to be used with tap water ...
56.7K viewsOct 24, 2020
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