Portable 2 channel EEG with Cade/Blundell bandpass filters.
Designed to run on an Intel 80C196 single chip device in 1992.
The challanges
1) implementing the digital band pass filters
and getting them to run on a processor not designed for Digital Signal Processing.
2) Keeping the power manageable to use replaceable batteries
3) Using an LCD module to provide visual information of the output of 14 channels.
4) Communicating safely with a windows PC to show the details on a low cost PC display (circa 1992)