Teensy Eight-Channel Digital Color Organ
This digital color organ is designed to have good frequency selectivity so that the color and brightness of the display LEDs are directly related to the frequency content of the music it is supposed to be synchronized to; not just to its amplitude.
Meet the ESP8266
It’s not all that often that a new piece of hardware comes along that immediately captures the attention of the builder community. The ESP8266 is the newest example of this. It’s only about the size of a nickel, yet contains a powerful 32-bit microcontroller and a Wi-Fi interface, plus you can buy it for around $4.
WEBSTER: The Mini Web Server
In thinking about conservation, it occurred to me that hosting my personal website on a desktop PC used a lot of energy. Even without a monitor, a desktop PC draws about 120W of power or about 200 KWH a year. So, I designed and built a low power alternative — Webster, the mini web server. There are many uses for Webster-like web servers including...
Floating Point Multiplication and Division Without Hardware Support
Using Horner’s method to provide floating point support on microprocessors or microcontrollers that don’t have support built in.