Display modules are modular prints with a TFT, OLED, LCD or some LEDs. These modules can be used with almost any microcontroller.
Customer reviews about LED Displays
Stéphane BOUEMAX7219 4x Dot matrix modulePerfect, quick to build and works immediately if you find the right code ( Opencircuit only provides scripts for very advanced projects)
RuudMAX7219 4x Dot matrix moduleOne module was better put together than the other. (soldering on the PCB in a crooked manner) I thought that was a pity.