Can the HC908 Daughtercard be used in other projects?
Most assuredly! In fact, this universal applicability is why we chose to make the form factor that of a pluggable daughtercard. Because the HC908 Daughtercard is a self-contained controller it could be very useful as the heart of custom projects well before the overall Breadboard became available. One could take the HC908, apply 12V power and use it as a standalone microcontroller unit for a smart terminal, a computing engine for a weather station, the brains of a security system, and more. It has gobs of I/O lines that can be used to control just about anything imaginable.