I am looking for a tutorial on 7 segments.
I am looking for something that will help me with a multiplex 3 digit 7 segment display.
The final reason for this is a simple temperature display, But I also want to learn how to use 7 segments and multiplexing a little better.
I have the things I need to do it, I am using the pins on my arduino for the anode pins (8 of them) I have 3 NPN transistors for the cathodes
I have gone through a tutorial on using a single digit display that does a basic countdown.
I would like something similar but that shows how the multiplexing aspect works and that I will be able to figure out how to adapt for a useful display.
I got 4 single digit displays, I was debating putting the 4th on but I decided against it based on the temperatures we see here are usually only 2 digit or negative 2 digit.
I am not concerned about any finer accuracy than whole digits so no need for decimals.
Anyway, if anyone knows of a tutorial somewhere online I can use to get me started I would greatly appreciate it.
Most of the ones I have found use either 595 shift registers or MAX plexing chips.
I would like to avoid these things for now so I can understand the basics.
