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Solved]Why is my transistor switch powering the LED even though Arduino is .... - Motors, Mechanics, Power and CNC - Arduino Forum
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5MM Light LED Blue Simple Flash Circuit Transistor 30K Resistance 22UF Electrolytic Capacitors Dupont Cable Board DIY Kit Module|Instrument Parts & Accessories| - AliExpress
2 LED choice display | Turn 1 LED on and other LED off - HOW
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npn - Toggle two LED status lights with two transistors - Electrical Engineering Stack Exchange
