Here is an other recent project, full schematic etc of a gadget that displays a smiley face on a 5×7 matrix led screen which sings along with the music around.
![](https://www.endtas.com/wp-content/uploads/2012/12/2012-11-09-18.23.24-300x225.jpg)
Here is an other recent project, full schematic etc of a gadget that displays a smiley face on a 5×7 matrix led screen which sings along with the music around.
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