What is this about?

PCB ONLY

A very small size, simple to use LED display for your microcontroller projects. It features one 4-digit 7-segment LED display, controlled by the well known 74HC595 shift register. It takes only 5 GPIO pins from any 5-volt compatible microcontroller, to fully control the four digits of it. Schematics, PCB layout and code are provided for the ones who buy it.

Why did I make it?

I have always had projects where I needed to use a 4-digit LED display, but the huge amount of code and wiring I had to do every time was setting things slow; so I decided to make a small shield containing all the electronics needed to seamlessly drive it.

So what?

It is different from any other LED display shield on the targeted price vs usefullness, because it offers a ready to use full set of digits (4 in total), very well organized and easy to drive (by using 5V TTL logic level from any microcontroller); all of that at a fair cost.