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Step 2Music Generator Circuit
The Circuit
Pic 4 shows the schematic of the random music generator. An 08M Picaxe controller is used to light up the RGB LED and send musical tones to a LM 386 amplifier that outputs to a 1" built in speaker.
In order to keep it small, I used a voltage converter that steps up 1.5 volts to 5 volts. It was taken from an LED flashlight that ran off of a single AA battery. If you do not mind making it bigger, you could use 3 1.5 volt batteries instead.
The video below shows you the RGB light display and you can hear a brief cut of the random music generator.
Pic 4 shows the schematic of the random music generator. An 08M Picaxe controller is used to light up the RGB LED and send musical tones to a LM 386 amplifier that outputs to a 1" built in speaker.
In order to keep it small, I used a voltage converter that steps up 1.5 volts to 5 volts. It was taken from an LED flashlight that ran off of a single AA battery. If you do not mind making it bigger, you could use 3 1.5 volt batteries instead.
The video below shows you the RGB light display and you can hear a brief cut of the random music generator.
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Dec 9, 2009. 6:53 PMAKninja04
says:
Hi, I'm trying to use the LM 386 for a different project. This is surely a noobish question but I wanted to know: do all the grounds in this project run back to the negative end of the battery?
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Apr 4, 2011. 3:19 PMski4jesus
says:
absolutely. if not, no power would run at all. rule of electrons is they have to have a backwards route, or nothing will work.
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