Involvement:Expert (understands the inner workings) - Ownership:more than 1 month
This is a very low cost module for what is on it. With all the buttons, dual colour LEDs and full 8 digit display, an awful lot of information can be conveyed. I used it for a ping time tracker, using the LEDs as a bar graph and the actual results on the LED digits. These can be chained to multiple units using the included cables.
None that I've run into, they respond quickly and operate well.
Buy a few, you'll find all sorts of little uses for them.
Chaining three together to an Arduino makes for a nice little stock ticker.
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