For the last few months I've been talking about how to add the PCD8544 (also known as the Nokia) screen to the devices. Unfortunately this has not been as easy as I'd first hoped largely due to differences in the screens. Some work well with the standard 5v of the Arduino Nano, others need the voltage in to be 3.3v. Some need resistors others don't. Finally however I can start to write things up properly though. The software has been written and is fully functioning for a while and whilst there are no improvements in what the ArduiTape/CASDuino/TZXDuino can do, it does use less memory than the other screens and looks a little nicer, in my opinion. CASDuino Turns Two. I have been reminded by my Facebook posts that today I completed my first CASDuino specific PP9 build two years ago today. I used the PP9N Evatron case as I was inspired by one of the TAPuino builds and it's a nice case to work with. Certain small things have changed since then, button caps, reset s