A very interesting gadget for you Arduino hobby. With 8 digits, 8 bi-colour leds en 8 button it can be used for almost everything. And you only need 3 Arduino ports (and 2 voor GND en 5 V).
A library for easy use can be found (http://code.google.com/p/tm1638-library/). And detailled information for use (http://tronixstuff.com/2012/03/11/) I haven't ... Read more
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 ... Read more
- Very useful to get numeric and/or state output and to provide input to a sketch into an Arduino using only 3 pins.
- Rather cheap for all the functionality provided.
- The little ribbon cable used to chain several modules can be used to connect the Arduino, when soldering a adequate outlet on a prototype shield. - Build quality is rather average. ... Read more
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