Portable Function Generator on Arduino ... Watch on Posted in Arduino Hacks, Tool Hacks Tagged AD9833, arduino nano, function generator, test equipment, X9C104P ← The E-Waste Apocalypse Looms ...

A printf function for Arduino. Contribute to maet3608/aprintf development by creating an account on GitHub.

isHexadecimalDigit (thisChar) Description Analyse if a char is an hexadecimal digit (A-F, 0-9). Returns true if thisChar contains an hexadecimal digit.

However, his latest video uses some a MAX7219 to create a 600 character scrolling LED sign. You can see a video of the thing, below. Spoiler alert: not all characters are visible at once.