AVT1853 - RGB LED
ntawm technology

AVT1853 - RGB LED

26.05.2022 /

Tus yuam sij rau kev ua tiav tog tsis yog tsuas yog suab paj nruag zoo, tab sis kuj muaj teeb pom kev zoo. Qhov nthuav qhia RGB LED tsav tsheb yuav ua tiav qhov kev cia siab ntawm txawm tias cov neeg xav tau ntau tshaj plaws.

Schematic daim duab ntawm RGB illuminophony muaj nyob rau hauv daim duab 1. Nws muaj ib tug microcontroller, ua hauj lwm amplifier thiab lub hwj chim transistors. Lub input teeb liab los ntawm lub capacitor C1 yog pub rau lub tswv yim ntawm lub lag luam amplifier. Lub input bias voltage yog txiav txim los ntawm ib tug divider ua los ntawm resistors R9, R10, R13, R14. Lub microcontroller (ATmega8) yog clocked los ntawm ib sab hauv RC oscillator khiav ntawm 8 MHz. Lub teeb liab analog ntawm lub suab amplifier yog ntsuas los ntawm A / D converter thiab siv rau PC0 input. Qhov kev pab cuam "xaiv" los ntawm lub suab teeb liab cov khoom uas nyob rau hauv cov nram qab no zaus:

  • Siab: 13…14 kHz.
  • Nruab nrab 6…7 kHz.
  • Tsawg 500 Hz… 2 kHz.

Qhov kev pab cuam tom qab ntawd suav cov luminous siv rau txhua channel thiab tswj cov zis transistor proportionally rau qhov tshwm sim. Actuating pab kiag li lawm yog transistors T1 ... T3 (BUZ11) nrog ib tug siab load peev xwm tam sim no. Lub Rooj Tswjhwm Saib muaj CINCH cov tswv yim rau cov tswv yim ncaj qha ntawm AUDIO teeb liab nrog rau theem ntawm 0,7 V (ib txwm lub mloog pob ntseg tso tawm). Lub suab tuaj yeem xaiv tau siv SEL jumper: CINCH (RCA) lossis microphone (MIC).

Cov nyhuv raug xaiv nrog MODE khawm (S1):

  • Xim liab.
  • Xim xiav.
  • Ntsuab xim.
  • Xim dawb.
  • Teeb pom kev zoo.
  • Random xim hloov mus rau lub ntaus bass thaj tsam.
  • Kev zam.

Peb pib lub rooj sib txoos nrog soldering resistors thiab lwm yam me me rau lub rooj tsavxwm, thiab ua tiav nrog kev sib dhos ntawm electrolytic capacitors, transistors, ntsia hlau txuas thiab CINCH connector.

Lub microphone tuaj yeem raug soldered ncaj qha mus rau lub nkhaus strip nrog kub pins. Ib lub cuab yeej sib sau ua ke yam tsis muaj qhov yuam kev, siv lub programmed microcontroller thiab cov khoom ua haujlwm, yuav ua haujlwm tam sim tom qab hloov pauv ntawm cov khoom siv hluav taws xob.

Saib kuj:

Ntxiv ib saib