![ATtiny programmable switching regulator (buck converter) shower extractor fan control. | Linux and electronics notes. ATtiny programmable switching regulator (buck converter) shower extractor fan control. | Linux and electronics notes.](http://lh4.googleusercontent.com/-GxDLGZW8VN8/T0V-vKh-iBI/AAAAAAAAAFE/pjRlERo1QUM/s800/circuit.jpg)
ATtiny programmable switching regulator (buck converter) shower extractor fan control. | Linux and electronics notes.
![ATtiny85 led matrix. So far I only have the letter "A" programmed. https://www.tinkercad.com/things/fifiA97JC25-copy-of-attinyledarray : r/arduino ATtiny85 led matrix. So far I only have the letter "A" programmed. https://www.tinkercad.com/things/fifiA97JC25-copy-of-attinyledarray : r/arduino](https://preview.redd.it/inef3bpdqod81.png?width=640&crop=smart&auto=webp&s=0821005549f5c81a78f7398f43e5160b07c741a7)
ATtiny85 led matrix. So far I only have the letter "A" programmed. https://www.tinkercad.com/things/fifiA97JC25-copy-of-attinyledarray : r/arduino
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