Don't connect the voltage regulator to just any 5V pin of the controller. There must be a VIN pin, which is a dedicated powering pin for the controller. That is the pin through which you can power it with 5V, as it passes the power through a voltage regulator and other protections, which make sure the power is delivered safely.
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- #2539
- 10 Nov 2025
Курсове и занятия включващи този Урок
Този Урок е използван в следните курсове и занятия.
Build a DIY Rotating LED Clock Display – For Parents and Kids (Online and Self-Guided)
Discover the fun of DIY electronics with your child in this self-paced, beginner-friendly online course, where parents and kids work together to build a rotating LED strip display!
Designed for those with no prior experience, this project-based course walks you through the entire process of assembling a spinning LED display that uses persistence of vision to create a glowing clock.
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Power Move – Plugging In the Brains
The Brains
In this lesson, the goal is to power a 5V microcontroller using a 9V battery without damaging it. To do this, we’ll use a voltage regulator and carefully follow the instructions. And yes - you’ll need your soldering skills again!
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