Outputs are how Arduino communicates decisions: light, sound, and movement make the system meaningful and useful. Controlling outputs safely—especially motors—requires proper wiring and sometimes extra components (transistors, diodes, external power). Simulation in Tinkercad is an easy, risk-free way to test your design before building on a real Arduino.
Lesson 1: Arduino – The Mini Brain
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Lesson 2: Inputs – Arduino Can Sense!
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Lesson 3: Outputs — Making Arduino “Speak” Back
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Lesson 4: Code to Control
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Lesson 5: Smart Room Ideas
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Lesson 6: Test, Debug, Tweak
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