بیایید با هم یک MP3 Player بسازیم.
برای پروژه پایان ترم یک MP3 Player بسازیم.
http://www.mictronics.de/?page=mp3stick
وسایل مورد نیاز:
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IC4 ATmega128L-8AU
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Main controller running at 8MHz internal RC oszillator, circuit is ATmega1281 or ATmega2561 compatible
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IC2 VS1011b
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MP3 decoder IC
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IC3 LM2940IMP-5.0
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Low drop fixed voltage regulator, supplies 5V to battery charger from 5-26V input voltage
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IC5 MAX1811ESA
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LiIo/LiPo battery charger, set to 100mA charging current, selectable battery type
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IC6 LP2981IM5-3.3
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Low drop fixed voltage regulator, main 3.3V power supply
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IC1 LT1932
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White LED driver, power supply for LCD backlight
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LCD1 Nokia color LCD
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from Nokia 6610 phone, connected via Hirose DF23 connector
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SW1 Alps SLLB
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Slide and push button switch made by Alps
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CARD1 FPS009-3002
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Yamaichi SD/MMC slot
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K4 7pin Header
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Docking port , 2.54mm / 0.1"
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Pin out
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1 - Charger input 5-26V
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2 - Serial input, 19200 Baud, 3.3V level
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3 - Serial output, 19200 Baud, 3.3V level
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4 - GND
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5 - Left audio out
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6 - Right audio out
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7 - Not connected
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PCB size without battery: 60x35x11mm
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Player overall size: 22x39x64mm
