[jbumstead] used MATLAB to convert the text messages into binary to be cut out of the disk. [jbumstead] wanted to demonstrate the idea of information-storing devices such as LPs, CDs, and old hard ...

Now is an amazing time to be involved in the hobby electronics scene. There are robots to build, cheap microcontrollers which are easy to program, and computers themselves are able to be found for ...

In this Design Idea , an old technique of diode-based 16-to-4 encoding is combined with a new design, to scan a record number of buttons – 74 – with only four I/O pins! The diode encoder: Background ...