Saturday, 25 January 2014
It's now about six weeks until it has to be ready and this is one of the few free weekends so I'm keeping my head down working on it.
MAX7219 driver chip. This is a pretty standard way to have an Arduino driving one of these matrix displays.
I could have spent ages making this solid but decided it kind of needs to be a loose fit that can move about. So holding the encoder on the end of a bit of garden hose isn't really a bodge. It's to enable it to move slightly as the handle will have to take rough handling. Honest.