Revisión positiva superior para Módulo de visualización LED en Banggood Spain|Compras España

50% OFF Módulo de visualización de llave TM1638 Chip de 8 bits con tubo LED digital US$4.99 US$9.99 View It

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WadNova 24/04/2018

Complete & independent control over all 7 segments, decimal point and auxiliary LED for each of eight segments. This allows for limited alphabetic characters (see photos). Be sure to use pull up resistor for reading keys. Unit is capable of reading any combination of key presses, so 256 possible input patterns are possible. However, with the standard library, I found the key reads to be a little erratic, so I stick to just single button patterns. For some reason, LED #1 lights at half brightness whenever one of the other LEDs is commanded on. The 2 LED banks are a bit mis-aligned, but this is just cosmetic. A real bargain to keep around for Arduino projects & tests.

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