* The aim of this project was to create a USB programmer for AT89C2051/4051 Atmel microcontrollers. The device is designed to flash memory chips describe a loaded and can be verified, the error upload new programs.
* For the USB programmer are two Windows applications for the upload control. and a console application for the automatic flash eg directly from an editor out
* The Atmel AT89C5131 controller is the heart of the USB programmer dar. It contains a micro program, which the entire USB communication and the process of flash chips inserted controls.
* Since the circuit is relatively low power requirements, is the direct power supply voltage from the USB bus, so no additional power supply is required.
* There are both Intel hex files, and complete memory dumps (binaries).
Source: andinet.de Atmel Avr AT89C2051 AT89C4051 USB Programmer alternative link:
Password: 320volt.com
Published: 2008/04/20 Tags: programmer circuit
Philips RC5 Remote Dimmer with PIC16F628
The purpose of the remote dimmer control circuit TV (Philips RC5 code) 220V lamp with brightness adjustment can be made. Increase and decrease +10, -10 and +1, -1 as is done in two ways. Circuit PIC16F628, and 4N35 MOC3021’ve used. @ Melih. While the project design involved a great many thanks to ETE evening.