µ[micro]electronics info

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




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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ftisp: USB-to-ISP Programmer

Ftisp is a command-line utility that allows program AVR processors via an USB chip FT2232 or FT232R.
Ftisp uses the fast synchronous bit-bang features of this chips.

A "Logic Probe - Next Generation"

An older article, but a good idea... Logic probe on steroids.

RBox: A DIY 32-bit game console

The RBox is a game console that is simple enough to build on the prototype area of a LPCXpresso ARM dev kit. You need just a crystal, a few capacitors and resistors. It uses the smallest and cheapest 32 bit CPU to generate 3D graphics and sound.

AVR AttoBASIC - 3x

Three circuits with AVRs, implementing a simple BASIC interpreter.

USBDM_JS16 - Freescale USB programmer

JS16 is a very minimal USBDM version based on MC9S08JS16, that supports HCS12, HCS08 and Coldfire V1 devices. It is easy to construct and may be initially programmed over the USB.

ARM7 game console

How to build game console based on ARM7 chip?

Image: Craig J. Bishop

Getting started with Forth on Propeller

How to work with FORTH on your Parallax Propeller board?

1-Wire device emulated by AVR

I bet you know a lot of artickes on "How to connect 1-Wire device to AVR". Here is the problem reversed: How to simulate an 1-Wire device in AVR?

Photo: MyCorp

Emulating a Z80 CP/M computer on ATMega88

Yes, we all know many emulators of old processors "on the chip", but as far as I remember this is the first attempt to emulate a CP/M machine (including Z80) I ever seen.

USB-to-LPT converter

There are a lot of devices with LPT (Centronics) interface, but newer computers haven't the LPT interface. Here is a solution...

Photo: Henrik Haftmann

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