* 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:
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.