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

USBtinyISP

A simple open-source USB AVR programmer and SPI interface. It is low cost, easy to make, works great with avrdude, is AVRStudio-compatible and tested under Windows, Linux and MacOS X. Perfect for students and beginners, or as a backup programmer.

Arduino-based AVR High Voltage Programmer

How to "unbrick" bad fused AVR? You need an AVR high-voltage programmer. Build your own with an Arduino.

Power usage logger

This device monitors household power usage and logs it to an SD card.

Open-source AVL

AVL stands for Automatic Vehicle Location, which is accomplished by means of a tracking GPS and M2M modules. Actually a small AVL can be used to track any objects, including kids and pets.

ATtiny24/44/84 Adapter for STK500

If you currently have a STK500 development board, you will face a problem because it doesn’t support any of Attiny24/44/84 chips. You have two ways: either buy STK505 adapter which is quite expensive, or develop your own.

Apple II emulator

This project attempted to reconstruct a functional Apple II emulated on Atmel ATmega32 processors. Due to time constraints, a fully functional Apple II was not produced; however, a working emulated 6502 processor, memory subsystem, and partial GPU was produced.

Maze in a Box

Maze in a Box is a portable game in which you tilt a TV to navigate your way around a 3D maze as though you were in it.

Tiny2313 Development board

Easy build AVR Tiny development board.

Weeboy - A portable, color, tilt-controlled video game system

The Weeboy is a portable color video game system that is not dependent on stationary displays or external power sources and features novel tilt-based control.

SIAM32 - Software USB host controller

Software Implemented ATMega32 USB Host Controller from the Cornell University.

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