Stomach Cramps And Alot Of Peeing

An array of LEDs very particular

This small project, which started a week ago, it is a simple array of LEDs as the friend Ariel uControl Forum with the difference that the LED panel is mounted on an uneven surface (in this case a hat)

The idea of \u200b\u200bthis "invention" is my son, who came with the need to build a hat with lights (already had explained on the LEDs at some point to their technology classes)

Reviewing schemes here and there I came to this, four shift registers 74HC595 responsible for activating or 32 columns of LEDs and 5 for rows BC640 transistors.

PIC 16F628A is the old, outgrown by low memory, but not getting the 18F2550 in MDS, and has a memory 24xx256 (32Kbyte) to store the "videos" or fonts to display.

The design was intended to be reused in other projects, a source of terminal blocks and two plates. You can add more columns with just adding another plate and serial data output.

the power to chose two 3V lithium batteries, because with all the fury I have a consumption of 200mA and these batteries are small enough and light enough to carry on the stubborn

Well these are the photos, the end is the link to download the schematics and PCBs