Has anyone done anything cool on ATMEL AT89S52?
I've got a while ago a pile of old electronic devices where I sourced maybe a dozen of ATMEL AT89S52 controllers.
Briefly looked up the net to see if there are any useful, simple and fun to make projects.
Found "magic wand" with 16 LED - which "writes" words in the air when you wave it. (Not interested)
Those controllers are also mentioned to be used in the advertisement billboards (e.g. moving word line).
If you are in Auckland and have cool project to build - you may have one chip from me (free).