Compared to what you pay you get a lot, because it contains a keyboard, display, LED, and more expansion option, it costs you only 3 pins of Ardoaino!
Because everything works in multiplaxing some of the buttons causes the display to flicker once you click on them. Additionally, you can connect only up to six units, with the existing connectors. And the screens are not replaceable (soldered directly on board).
Would be nice if the connectors were simple like the regular Ardoaino modules...
Product really worth the investment, now I want to order another 5 to show text and cool effects!!!
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