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Tachometer / REV counter using PIC16F877 instead of LM3914

Tue, 05/08/2007 - 17:32 - Author: ale

I had some PIC micro and I built a simple LED tachometer for my car with a 16 led linear scale.

PROPIC 2 PIC programmer

Tue, 05/08/2007 - 17:26 - Author: ale

Also called PropicII, Propic II or Propic Clone, this circuit is very simple and useful to program fast your PIC micros.

MAX1044 Negative voltage converter

Tue, 05/08/2007 - 16:10 - Author: ale

I found this integrated circuit on the Maxim website. It will be useful for obtaining a dual power supply from a battery!

Room's light switch with vocal command

Mon, 05/07/2007 - 14:46 - Author: ale

This is an old project, I bult this some years ago to turn on and off my room's light without using hands.

MAXIM MAX3130

Sat, 05/05/2007 - 14:57 - Author: ale

Anyone can help me for buildin a simple IrDA - USB converter with MAXIM 3130? Thanks

Datasheet and info

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