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Arduino & IoT Academy · Lesson

Power, Ground & Common Mistakes

Share ground correctly and avoid shorts.

Power Needs a Loop

Electricity only flows in a complete circuit: out from a power pin, through your part, and back to ground. Break the loop and nothing works.

What Ground Really Is

Ground, labeled GND, is the return path and the zero-volt reference. Every voltage on your board is measured against it.

All lessons in this course

  1. How a Breadboard Connects
  2. Resistors & Ohm's Law in Practice
  3. Power, Ground & Common Mistakes
  4. Read a Simple Schematic
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