Recently Added Notes
- Color Timer with Circuit Python
This color changing timer shows when an hour passes by going from blue to red in reverse rainbow order. It’s… Read More »Color Timer with Circuit Python - Custom OctoPrint Light Control
In order to shed light on my 3D prints, I added a custom control to OctoPrint running on a Raspberry… Read More »Custom OctoPrint Light Control - SDR FM Radio with Python
This project uses GNU Radio Companion to generate python code from a flow graph that plays FM radio stations using… Read More »SDR FM Radio with Python - JDY-40 Wireless Broadcast
A commenter on a previous post asked about JDY-40 broadcasting to multiple nodes, where only a specific remote node will… Read More »JDY-40 Wireless Broadcast - 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?