I want to build a led matrix which would display a plot of a variable (say, temperature) over time. It will look like the attached file "plot.png" (for example-- this one show that three hours ago, the temperature was 3° higher than it is now).
I'm new to led matrix designs, so I'd like some advice for choosing the hardware. My initial idea for to use three 74HC4017
counters to loop though the columns and two 74HC595
to control what to display for each columns (i.e. row control). The circuit diagram will be quite similar to this one
except that it will have three counters and two shift registers.
My question are : is it possible to wire theses three counters (which count up to 10) together to emulate a counter that counts up to 24? Can I actually displays these "bars" mentionned earlier with these shift registers?
Thanks.PS: I'm sorry if these questions look newbish ; things will become clearer to me once I'll be able to actually fiddle with these ICs, hence asking you for confirmation before ordering them. Actually, I don't even have more than a vague idea of what the Arduino program will look like, but this is for later.