මචන්ලා උබල දන්නවද අර music beat එකට පත්තු වෙන led එක හදන්න.කෙලින්ම speker එකට දුන්නහම වැඩේ හරි එත එකට වෙනම circuit එකක් තියනවා.දන්නා කෙනෙක් මට කියල දෙනවද![]()
vu meter kiyala google karaPAN,
මචන්ලා උබල දන්නවද අර music beat එකට පත්තු වෙන led එක හදන්න.කෙලින්ම speker එකට දුන්නහම වැඩේ හරි එත එකට වෙනම circuit එකක් තියනවා.දන්නා කෙනෙක් මට කියල දෙනවද![]()
ow machan ara thani led eka mata oneamp walath thiyanawa neda oya seen eka![]()

mamath hoya hoya hitiye ban ooka balamu danna kenek athiow machan ara thani led eka mata one![]()

emokakda machan
ow ban matath maara asai ubata hamba unoth methana post karapan machoomamath hoya hoya hitiye ban ooka balamu danna kenek athi![]()

eken mokakda macho karanne.mama vadiya tronic paththa danne naumba kiyana eke nama thama "vu meter".
ex:
http://www.eleccircuit.com/audio-vu-meter-by-lm324/
http://www.next.gr/meter-counter/vu-meters/10-LED-VU-meter-LM3915-l7590.html

eken mokakda macho karanne.mama vadiya tronic paththa danne na![]()
elaz karannamow ban matath maara asai ubata hamba unoth methana post karapan machoo![]()

eken mokakda macho karanne.mama vadiya tronic paththa danne na![]()



eke thiyena circuit 1 hadanna oni
oya diagram therum ganna ithin electronic tikak denaganna oni
nathnam electronic shop wala PCB board 1 ganna thiyenawa ,eke parts list ekakuth thiyenawa ,e tika aran solder karanna
ekath bari nam hadapu 1k ganin![]()


na na jundak dannava.mata one macho thani led eka.ara musical show vala buffel eka athule paththu venne thada eliyak e vage

equalizer kiyanne wena ekak,eka eka band eke signal strength eka wenas karanna puluwn,godak amp wala ekath ekkama VU meter tiyenwa,eke thama led pattu wennee machan ara equlizer eka vageda
na na jundak dannava.mata one macho thani led eka.ara musical show vala buffel eka athule paththu venne thada eliyak e vage
![]()

bump
umbata thani led ekak one nm transistor ekak dapanko switch 1k wage,base ekata dipan signal eka resistor ekak haraha,eliyen pwr dipan TR+led ekata

Machan LM-3914 kiyala 18pin IC ekak thiyenaya. anna e IC eka use karala design karapu circuit internet eke thiyenawa. LM-3914 IC eka DOT MODE and BAR MODE kiyana krama dekatama weda karanawa. oya hoyanne DOT MODE eka wenna ethi. Google image search ekak daala balanna IC eke no. eka daala. me IC eka colombo wala Rs. 175k wenawa. pita palath wala nam danne nehe.