In eve of the New Year is accepted present the gift.

Particularly expensive and remembering become create their own hand.

The Idea of the snowflake much forgive; pardon - a catch "alive" snowflake, consider, catch following and etc until will come lighting up. Better, than created the Creator, us not under power, but here is try to do the cheap copy with this amazing original I have tried. That was thereof got, judge You.

The Snowflake is physically collected on two printed charges - 259 very bright lightly blue led on one and microcontroller ATMEGA16 with transistor key - on another. The Charge attach between itself single-in-line connector - by manifold valve. It is more comfortable for montage and further service. The Electronic scheme on microcontroller forms 32 independent channels with width-pulse inflexion. The Circuitry of the screen - a snowflakes is collected in 32 channels with mixed (parallel-consequent) by cut-in led. The Location led on screen was perfected on simulator, but their 12-beam symmetry was "spy on". Unique software has allowed to create bright, colorful, dynamic effect, which will decorate any holiday. The Program (BASCOM AVR) generates non-recurring, is sailing  going friend in friend patterns. At start program reads from nonvolatile memory EEPROM casual number, which is seasonally updated in operation  always to start with miscellaneous of the effect that will add else greater showing.

At repetition of the designs montage follows to begin with board of the controller. The having Interweaved controller and having exposed FUSE for functioning (working) from internal RC generator on 8 MHZ, as well as unplugged JTAG, install its on a board. Unsolder transistor keys with stud, possible proceed the scheme with checking. The Resistor 1 lump connect to cathode of the led, anode of the led on +12В, free drumstick of the resistor alternately to each of 32 outputs. We Observe fluent change to brightness of the led. If all orderly, go to the following stage - a montage of the board with led. In the beginning jumpers and comb, then several light-emitting diod channel, as from the centre. Under switched off power supply стыкуем the board and check functioning a device. The Main error - a wrong cut-in led. We Continue the montage before full victory. One advice: if you want that snowflake to be on glory, do not feel sorry the money on leds. Recommend to use with angle of the review 180 degrees and brightness more 0,5 cd. Power supply from network adapter 12В 500мА. The Snowflake will gain the more noble type if its decorate the decorative bracket. In is made from PVH plastic arts and is painted in steel color by aerosol enamel for cars.  I was made several snowflakes of the miscellaneous of the color. But the most striking, in my glance, are snowflake from blue led. If will use red or yellow leds, come to change the resistances a resistor, noted asterisk, on the following: R1- 560 Ohm, R2, R4 - 82 Ohm, R3, R5 - 160 Ohm. For blue, green and white led of the resistance is specified on scheme.

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