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  • Overall Rating: 5
  • Price: 5
  • Quality: 4
  • Ease Of Use: 5
  • Usefulness: 5
A must have for all Arduino hobbyists. – JY-MCU 8X Red Light Digital Tube + 8X Key + 8X Double Color LED Module Reviews

posted by rewkk on 12/17/2011 Certified Owner

Involvement:General (knows how to use it) - Ownership:1 week to 1 month

Pros:
- 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.
Cons:
- Build quality is rather average.
- Finding datasheet about the chip used is very difficult.
Other:
It can easily be used with the excellent lib :
http://code.google.com/p/tm1638-library/
Bottomline:
This is obviously a must have for any Arduino hobbyist.
It can either be used for its own sake, just for fun, or to provide a good way to display some internal values when building something bigger. For example, buttons can be programmed to select a given value to display.

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