Get to know the parts, choose the right board and build your projects with confidence.
Learn the internal connections and power rails of the breadboard, which lets you build circuits without soldering, plus the mistakes beginners make most often.
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We explain in plain language what Arduino is, why it's so popular and what you need to build your first project.
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We explain with examples how an LED works, how to identify its legs and which resistor to use so it doesn't burn out.
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Learn what a resistor does, how to read its color bands and which resistor goes where in Arduino projects.
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Arduino Uno, Nano or Mega? We compare the boards side by side in a table and explain which one to pick for which project.
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From temperature to distance, gas to motion: the sensors used most in Arduino projects, with wiring tips and common mistakes, all in one place.
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