Printed circuit board layout pcb design effects with LEDs been a good practice to work in the dark when used with an ultra bright LEDs looks very nice. Atmel AT90S2313 64 LEDs instead of creating Propeller microcontroller TINY2313 BASCOM-AVR 1.11.9.1 prepared with available software sprint pcb layout drawing and drawing spline scheme has the source code.
The LED snowflake is mounted on a microcontroller. AT90S2313 or equivalent TINY2313 and performs 12 effects. 64 red LEDs are located on the board in the form of a spider web and are combined into a matrix. The buttons select the effect in one direction or another and adjust the speed.
Also, if you press the speed control buttons at the same time, it will start. automatically change from large to small and vice versa. And if you press the effect change buttons at the same time, they will start changing in a circle. It will be until any button is pressed and everything remains in that mode.
When using TINY2313, you can do without quartz, setting the fuses to the internal oscillator.
Password: 320volt.com
Published: 2011/06/13 Tags: avr project, led projects, microcontroller projects
20 Led VU Meter Circuit KA2281
KA2281 previously with various vu meter circuit I made , but all mono circuit stereo manufacturer has two channels has been a challenge but in the end a bit of trouble in the scheme worked beautifully 🙂
Original diagram 15, 16 pins between the 50k resistor connected in this way the circuit full does not work for an additional 15 numbered pin- 56k resistor 2 to pin connects seamlessly with all channels running ka2281 outputs 560 ohm resistor on the LED connecting optional 470 ohms can be used but lower values ​​of the LEDs more disrupt the flow can lead to integrated pull . Mp4 audio inputs with 12v circuit works , cd player, pc etc. . resources , such as low power amp can be connected directly connected to the output does not
KA2281 gives mono output for the 10 LEDs 20 LEDs hooked ikÅŸerl was fine ring-shaped LED placement sequencing also be mounted on a panel with the template I gave much better results if you give