Dilshan R Jayakody’s Web Log

AVR-HV2 is Arduino based high voltage parallel programmer for AVR microcontrollers. This programmer can read, write, and erase both flash memory and EEPROM. Also, this can use to set fuse bits of AVR MCUs. Compare with the previous version of AVR HVPP , this design is based on commonly available components with a simple schematic. In this release driver software is also rewritten to provide cross-platform support. AVR-HV2 shield with Arduino Mega 2560 board. AVR-HV2 programmer is designed as an Arduino Mega shield. Dimensions of the AVR-HV2 are similar to the Arduino Mega board. It can be powered using a power source connected to the Arduino Mega board. The suggested power source for this programmer is a 12V 1A DC power adapter. The control software of this programmer is design to work on both Windows and Linux operating systems. It supports the import and export of memory data in the Intel hex file format. The communication link between the programmer and the control s...

FlashProg is USB base flash memory programmer to work with 3.3V serial flash memory devices. This programmer is specifically design to read, program and configure 25x series, serial flash memory devices which are commonly used to store BIOS in PC mainboards. Originally we design this project to read and program BIOS of Foxconn G31MXP mainboard. Our version of G31MXP contains Macronix MX25L8005 8M-Bit serial flash memory and we use this programmer to load some of our custom BIOS to this serial memory. MX25L8005 SPI flash memory on Foxconn G31MXP mainboard FlashProg programmer is built around Atmel ATmega8A microcontroller with standard through-hole type components and it support for both 32 bit and 64 bit Windows and Linux operating systems. All the compiled binaries for both the platforms are available at project home page at flashprog.sourceforge.net . This programmer use very few components and it can be easily constructed on breadboard or on PCB. Both EAGLE and PDF...

This is an Android application to send Morse code messages using tones or flash (light) signals. This application supports for basic Latin alphabet, Arabic numerals and it can transmit messages with specified speed which can vary from 100ms to 500ms. Main application view  This application is developed using Delphi XE5 and it supports for Android version 2.3.3 ( Gingerbread ) to 4.2 ( Jelly Beans ) except Android version 3.2 ( Honeycomb ). This application is specifically design for 3.4 inch - 5.0 inch Android smartphones and we tested this application with few Huawei , Samsung and HTC devices. Audio / Visual Morse code Generator is an open source software project and its source code is available at http://github.com/dilshan/signalman . Compiled package is available to download at http://github.com/dilshan/signalman/releases . This project is distributed under the terms of MIT license . Delphi Android compiler platform is still evolving and some bug can be expecte...