- on Microcontrollers
- Published in issue 7/2011 on page 26
Extra Port Connections for the R8C/13
The well-known R8C processor module from Elektor’s blockbuster R8C Project is easy to program and can be used to control an extremely wide range of applications. Now and again, however, some additional port connections would be handy in larger applications. For this reason we have come up with a simple port expander that uses two 82C55 port modules.