µ[micro]electronics info

A weblog focused on interesting circuits, ideas, schematics and other information about microelectronics and microcontrollers.

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Disclaimer

Because I have not tested all electronic circuits mentioned on this pages, I cannot attest to their accuracy; therefore, I do not provide a warranty of any kind and cannot be held responsible in any manner.

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ATMEL AVR

Open GPS Tracker

The Open GPS Tracker is a small device which plugs into a $20 prepaid mobile phone to make a GPS tracker. The Tracker responds to text message commands, detects motion, and sends you its exact position, ready for Google Maps or your mapping software. The Tracker firmware is open source and user-customizable.

Some Arduino-related links

I've an idea to make the PIC-based Arduino clone: simple, elegant and cheap PIC-based board. So here are some links to Arduino-related materials I've found for future use.

Monster Memory - 512kB DRAM with AVR

Jesper Hansen's method to connecting DRAM with an AVR microcontroller.

AVR Accelerometer

Jesper Hansen's accelerometer named AccelR8 based on Analog Devices' MEMS chip

AVR IR Remote Control System

An infrared (IR) link that provides bi-directional communication between the NXT and the new Power-Functions system, which consists of a battery box, motors, a remote control (an IR transmitter) and an IR receiver that controls the motors.

Positional Sensor Interface

Low cost and easily implemented sensors for homebrew robotics projects.

50MHz Frequency counter

Cheap AVR-based frequency counter by Ulrich Radig.

kaOS ATmega32 Operating System

From Circuit Cellar's AVR Contest

Simple functions generator

Very simple version of the DDS synth, using just the Atmel AT90S2313 and a resistor network.

Frequency meter

Freq meter with 7segment LED display based on the Atmel's AVR90S2313 and three 74HC chips by Jesper Hansen

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