In this path, you'll get a brief introduction to circuits and how they work. This information will be useful as you continue to work with micro-controllers.
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MC100: Introduction to Circuits
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Introduction to Circuits
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Electricity 101 | Types of Circuits
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Types of Electrical Circuits
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Light-Emitting Diodes (LEDs) - Introduction
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Light-Emitting Diodes (LEDs) - How to Use Them
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Resistors
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Light-Emitting Diodes (LEDs) - LEDs without Math
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DIY Paper Circuit Tutorial
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Activity: Design a simple LED circuit
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Assessment: Introduction to Circuits
You may want to play around more with circuits -- and the Tinkercad tool is a great way to do that!