The 8051-compatible microcontrollers are equipped with up to two inputs that may be used as general-purpose interrupts. A simple way to increase the number of interrupt inputs is shown in the figure.

We seen how timers and interrupts work in MBasic (Chapter 10) and learned a bit about assembler programming (Chapter 13) and how to mix assembler with MBasic (Chapter 14). It's time now to fuse these ...

This project is similar to Project 6 but here the microcontroller's timer interrupt is used to refresh the displays. In Project 6 the microcontroller was busy updating the displays every 10ms and ...