Arduino Uno R4 WiFi LESSON 42: Arduino Transistor Tutorial @paulmcwhorter
Arduino Uno R4 WiFi LESSON 42: Arduino Transistor Tutorial  @paulmcwhorter
Uploaded November 2024 | Updated September 2026, 2 weeks ago
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In this video I show you how to incorporate a transistor into your arduino project. I show the motivation is that some components, like an active buzzer, require more current than the GPIO pins can source. So, I show how you can use a transistor as a switch. It is important to remember that the GPIO pins on the Arduino R4 can only supply 8 milliamps, and trying to draw more current than that can damage the GPIO pin or actually fry your arduino. The buzzer draws more than 8 milliamps, so I will show you how to incorporate a transistor into your projects where you can then control larger currents from the GPIO pins. This concept can be extended to run other components like motors. Enjoy!

[Disclosure of Material Connection: I am a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com. ]

#arduinor4wifi
#tutorial
#transistor -
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*LEGAL DISCLAIMER:*
The code, hardware setups, circuit diagrams, mathematical calculations, and technical methods provided in this video are strictly for educational and demonstration purposes.

All math, code, and instructional content are provided "AS IS", without warranty of any kind, express or implied, including but not limited to guarantees of accuracy, completeness, or fitness for a specific purpose.

All hardware assembly, circuit wiring, and software execution are performed entirely at your own risk. The creator assumes no liability for equipment damage, component failure, data loss, or personal injury resulting from the use or implementation of any information or files presented in this content.
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Paul McWhorter |

Arduino Uno R4 WiFi LESSON 42: Arduino Transistor Tutorial

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