µ[micro]electronics info

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

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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

AVR synth

A monophonic synthesizer based on an Atmel AVR microcontroller.

DS brut

DS brut is an open source hardware prototyping platform for the Nintendo DS

Atmel STK500as an Arduino dev board

How to configure an Atmel STK500 as an Arduino-based development system.

AVR Flash Loader

This project uses a WIZnet WIZ810MJ board to connect an Atmel Butterfly development board to a PC host application via ethernet.

USB game controller with 12 inputs

For some projects, a circuit making it possible to connect 12 buttons (including 4 directional buttons) to a PC using an USB port is very useful.

Stereo PWM audio

Using a pwm channel of a simple microcontroller, a capacitor and a resistor to reproducting sounds.

Upgrade the Arduino with bigger ATMega

Running out of space in your big Arduino project? Good news! Finally you can buy the latest improvement to the ATmega8 line of chips: the ATmega328!

I2C Tiny USB

Attach any I2C client chip (thermo sensors, AD converter, displays, relais driver, ...) to your PC via USB ... quick, easy and cheap! Drivers for Linux, Windows and MacOS available.

LCD2USB

The goal of LCD2USB is to connect HD44780 based text LCD displays to various PCs via USB. LCD2USB was meant to be cheap and to be made of easily available parts. It is therefore based on the Atmel AVR Mega8 CPU and does not require any difficult to obtain parts like separate USB controllers and the like. The total cost (without display and pcb) are about 5 to 10 Euros. LCD2USB currently comes with a simple demo application that works under Linux, MacOS X and Windows.

DIY: The cheapest dual-channel scope

Great idea - USB scope with only ATtiny 45 for less than 10USD with a homemade pcb. USB is software-based, so no extra USB chip is needed.

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