Part 3. (Watch Parts 1 & 2 first). The coder strikes back!
7-segment LED displays are easy to control with an Arduino and a MAX7219 – just 3 wires (plus power supply) and a few lines of simple C++ code.
You don’t need to be a rocket scientist to display the numbers 0 thru 9 (and the letters HELP) on a 7-segment LED display unit. So you can display the temperature or distance or… you get the idea!
It’s simple so just watch this and follow me through the steps.
Parts 1 & 2 (videos #9 & #10) precedes this one. Subscribe so you don’t miss out.
Part 3 (this video, video #11) looks at good coding techniques to make your code robust and easy to maintain.
All code, the MAX7219 library and other stuff can be found here:
And my channel is here: