AVT1853 - RGB LED
Chinsinsi cha phwando lopambana si nyimbo zabwino zokha, komanso kuunikira kwabwino. Dongosolo la oyendetsa la RGB LED lomwe laperekedwa lidzakwaniritsa ziyembekezo za omwe amapita kuphwando ovuta kwambiri.
Chithunzi chojambula cha RGB illuminophony chikuwonetsedwa mu Chithunzi 1. Zimapangidwa ndi microcontroller, amplifier ntchito ndi transistors mphamvu. Chizindikiro cholowera kudzera pa capacitor C1 chimadyetsedwa kulowetsa kwa amplifier yogwira ntchito. Mphamvu yolowera kukondera imatsimikiziridwa ndi chogawa chomangidwa kuchokera ku resistors R9, R10, R13, R14. The microcontroller (ATmega8) ndi wotchi ya mkati RC oscillator kuthamanga pa 8 MHz. Chizindikiro cha analogi chochokera pamawu amplifier chimayesedwa ndi chosinthira cha A/D ndikugwiritsa ntchito kulowetsa kwa PC0. Pulogalamuyo "imasankha" kuchokera pamawu omvera zigawo zomwe zili mumayendedwe otsatirawa:
- Kukwera: 13…14 kHz.
- Avereji 6…7 kHz.
- Pansi 500 Hz…2 kHz.
Pulogalamuyo imawerengera mphamvu yowala ya tchanelo chilichonse ndikuwongolera chotulukapo molingana ndi zotsatira zake. Zida zogwiritsira ntchito ndi transistors T1 ... T3 (BUZ11) yokhala ndi mphamvu zambiri zamakono. Bolodi ili ndi cholowera cha CINCH cholowetsa mwachindunji chizindikiro cha AUDIO chokhala ndi mulingo wa 0,7 V (kutulutsa kwamutu kwamutu). Gwero lomvera litha kusankhidwa pogwiritsa ntchito jumper ya SEL: CINCH (RCA) kapena maikolofoni (MIC).
Zotsatira zimasankhidwa ndi batani la MODE (S1):
- Mtundu wofiira.
- Mtundu wa buluu.
- Mtundu wobiriwira.
- Mtundu woyera.
- Kuyatsa.
- Kusintha kwamtundu wachisawawa mpaka kumveka kwa bass.
- Kupatula.
Timayamba msonkhano ndi zopinga za soldering ndi zinthu zina zazing'ono ku bolodi, ndikumaliza ndi msonkhano wa electrolytic capacitors, transistors, screw connections ndi CINCH cholumikizira.
Maikolofoni imatha kugulitsidwa mwachindunji pamzere wokhotakhota wokhala ndi zikhomo zagolide. Chida chosonkhanitsidwa popanda cholakwika, chogwiritsa ntchito makina owongolera ang'onoang'ono ndi zinthu zogwirira ntchito, chidzagwira ntchito mukangoyatsa magetsi.
Onaninso:
