TrolSoft

There are many commercial soft to extract resources (images and sounds etc) from flash SWF files. There is also a free crossplatform console toolset for compile and decompile SWF: swftools.

In particular, this package includes tools swfextract и swfdump to extract resources from the SWF and decompilation SWF files with getting list of elements with dumps. The disadvantage of these tools is that the first one can't automatically extract all resources from a file and the second can't store hex-dumps to binary files.

Optimization of image files to reduce their size without loss of quality is especially important when developing applications for mobile devices, Web applications or Intertet-sites. To reduce the size of png-files there is a good free command-line utility - PNGOUT. This utility is repacked the data in IDAT-chunk (data chunk that contains information about all image pixels), can automatically reduce the color depth (where it makes sense) and remove from package some chunks that are not necessary.

This LED "icicle" made from mainly blue LEDs. This device can serve as Christmas present or New Year's ornament. The "icicle" can be transformed into a "candle" if to use red and yellow LEDs and to change accordingly its external design. As the body I used two fur-tree toys: transparent plastic icicle and one-half of the Christmas ball. LEDs are placed in the first and second placed the microcontroller board.

8- and 16-bit game consoles that were a long time ago very popular, has long lost its leadership in gaming and entertainment market. However, the old games are still popular and yet are perfectly competitive of the interestingness with the modern multi-gigabyte and multi-gigahertz monsters. Today there are many different emulators of old consoles and the Chinese industry is still produced a console itself as well as joysticks to them.

This LED "Snowflate" made from mainly blue and white LEDs and can serve as Christmas present, Christmas ornament or night light. The device also has a thermometer. Snowflake has 6 beams and every beam contains 8 superbright LEDs. I have used blue and white LEDs with different diameters.

It's a simple doorbell that can play melodies and audiorecords from I2C flash-memory chip. The device has two parts - digital and analog. The digital part used the microcontroller AT89C2051 and flash-memory AT24C256.

USB ASP programmer is an popular USB programmer for AVR microcontrollers. There are many different implementations of USBasp, but since PCB dimensions were not suitable for my case, I has made my version of the PCB.

Power control is useful when soldering. It allows to keep the temperature of a soldering tip at the optimal level, reducing its destruction and extends its life. I found in the Web two circuits of microcontroller power regulator by L.I. Ridiko. These devices are control the power by changing the number of half cycles through mains soldering iron on the second. The higher power set, the more half-cycles will go on a soldering iron and the less will be a pause between them. Because the switching occurs in moments of transition of line voltage through the zero, electrical noise, caused by the regulator, will be minimal.

This breadboard can be used for temporary prototypes and experimenting with circuit design more easily. It is designed for prototyping circuits on chips in DIP-packages and discrete components. The breadboard is intended primarily for prototyping devices on microcontrollers AVR (ATMega8/48/88/168/16/32/8535/...) and АТ89Сх50. The breadboard is based on 40-pin single row connectors PBS (step 2.54mm) and IC-sockets.

tboot Loader is a ultra small (only 256 bytes) opensource boot loader for AVR microcontrollers, it's used for programming flash using a serial link between your computer and the microcontroller through any free COM port (or USB to serial adapter).

tboot consists of two parts:
1. on chip boot loader, that resides at the boot section of the flash memory, this loader based on SSBL bootloader
2. windows software, the console utility, that has the responsibility of writing/reading data into/from the microcontroller