Guitar LED Twinkler (Humbucker) - How to do (circuit schematic included)
This is my Epiphone Junior guitar. My guitar gonna have Lights that shines like fire. We call this "Twinkler". You may think Twinkler would be a guitar pickup. But it isn't. It's a LED circuit that reacts to a player's picking. It may twinkle or glitter or shine as you play. If you want more information, visit my homepage or email me.
I designed it and made it myself.
the circuit is as small as a coin, it can be fit in the guitar electronics chamber with a 9v battery!
The circuit uses a LM386 low voltage audio amplifier, that you can get from radioshack or any professional electronics store nearby, it amplifies the guitar sound 200 times, which is enough to light the LEDs.
the schematic works 100%, other circuits on youtube doesn't work because they use things they don't mention, or mistaken in some stuff.
It is necessary to put the 220uF Capacitor, because the LM386 IC gives the half power input voltage in the output pins, so if you connected it with a 9V battery, the output will be 4.5V DC standard and then just goes up and down with the sound, so you have to put the capacitor to block this standard DC voltage and only pass the change in voltage, or else your LEDs will stay on, just go brighter and dimmer with the sound input.
The Resistors value depends on the LEDs color and power, and how many LED you used.
you can use this site to build up the LEDs circuit:
http://ledz.com/?p=zz.led.resistor.ca...
go to "Leds in parallel:" and fill it
set the "Supply Voltage" to 4.6 Volts
the voltage drop and the current rating are the ratings of the LEDs you have. if you don't know it, you can find the closest rating here
http://www.oksolar.com/led/led_color_...
the "Fwd Voltage" is the voltage drop , the "Intensity" (ie @50mA) is the "Desired LED Current" .
thanks.
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Circuit schematic:
http://data.tumblr.com/tumblr_lx8kqpi...
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this music is called 'sunk' by me.