Building a stand-alone AVR ATMEGA project sometimes leaves you with no easy to read output from your project. But you can use an Arduino to act as a communications bridge between your embedded project and your PC's Serial Monitor program!
I'm building an embedded multi-channel thermocouple reader/datalogger, which has a lot of connections and soldering, thus many opportunities for problems!
Since this is an embedded application, and the project itself does not incorporate a USB connection, this left me without any easy communications to my Arduino's IDE Serial Monitor.
Using an Arduino UNO board, I was able to communicate from my embedded project, through the Arduimo board, then to my PC's Serial Monitor, which helped me a lot!
I'm not finished yet with my datalogger project, so I can't post it here yet, but I thought others might find the ability to communicate between their embedded project and their PC worth knowing about, so I'm posting that information now!
Here's the link to the information.
I was going to upload some images, but the 'upload' isn't working right now.