Recently Added Notes
- Why Are Complex Numbers in the Discrete Fourier Transform?
Why does the Fourier Transform generate complex numbers in the frequency domain? The Discrete Fourier Transform (DFT) of a signal… Read More »Why Are Complex Numbers in the Discrete Fourier Transform? - Ugly Remote Control Battery Mod
I modified the remote control for my office light & fan so that it takes a 9 volt battery instead… Read More »Ugly Remote Control Battery Mod - Simple Game Buzzers with Arduino
My son was in need of game buzzers on short notice. So I put together something quick & simple that… Read More »Simple Game Buzzers with Arduino - DIY GPS Unit with Arduino Uno
This DIY GPS unit consists of an Arduino Uno, SSD1306 OLED display, and BN-220 GPS. It is powered by a… Read More »DIY GPS Unit with Arduino Uno - Arduino Heap Space Workaround
I thought this GPS project would be done quickly, but found myself scratching my head for days on a weird… Read More »Arduino Heap Space Workaround