(inače bih ja to slikao, kako sam napravio i na županijskom )Ne mogu nigdje naći šemu tog uređaja a želio bih ga napraviti opet... Hvala
Mjerac buke sa LM3914
Moderators: pedja089, stojke369, [eDo], trax
Mjerac buke sa LM3914
Dali netko ima šemu ovog uređaja i dali je nekome poznat? Na državnom natjecanju sam dobio zadatak da napravim ovaj uređaj, a pošto je to državno natjecanje, nisu me pustili u učionicu sa mobitelom i fotićem (inače bih ja to slikao, kako sam napravio i na županijskom )
Ne mogu nigdje naći šemu tog uređaja a želio bih ga napraviti opet... Hvala
(inače bih ja to slikao, kako sam napravio i na županijskom )Ne mogu nigdje naći šemu tog uređaja a želio bih ga napraviti opet... Hvala
Evo ga 
VU Stereo Meter By LM3914 (LED)
I like to see lights move to music.
This project will indicate the volume level of the audio going to your speakers by lighting up LEDS.
The LEDS can be any color so mix them up and really make it look good.
The input of the circuit is connected to the speaker output of your audio amplifier.
You want to build two identical units to indicate both right and left channels.
The input signal level is adjusted by the 10k ohm VR.
If you wish to make a very large scale model of this unit and hang it on your wall there is an optional output transistor that can drive many LEDS at once.
The unit I built drove three LEDS for each output.
The sequence of the LEDS lighting are as follows Pin 1, 18, 17, 16, 15, 14, 13, 12, 11, 10.
VU Stereo Meter By LM3914 (LED)
I like to see lights move to music.
This project will indicate the volume level of the audio going to your speakers by lighting up LEDS.
The LEDS can be any color so mix them up and really make it look good.
The input of the circuit is connected to the speaker output of your audio amplifier.
You want to build two identical units to indicate both right and left channels.
The input signal level is adjusted by the 10k ohm VR.
If you wish to make a very large scale model of this unit and hang it on your wall there is an optional output transistor that can drive many LEDS at once.
The unit I built drove three LEDS for each output.
The sequence of the LEDS lighting are as follows Pin 1, 18, 17, 16, 15, 14, 13, 12, 11, 10.
Hvala, nadam se da ću ovih dana uspjeti nešta napravit od toga, da uparim te dvije sheme . Dali to sigurno radi?
Danas sam svoj mjerač malo testirao u sobi. Puštao sam muziku kako ja inače slušam i naravno diode samo što mi nisu došle do crvenog . Inače slušam metal, rock i te fore tak da... JOŠ uvijek nemam problema sa susjedima (živim u stanu u zgradi) 
. Dali to sigurno radi?Danas sam svoj mjerač malo testirao u sobi. Puštao sam muziku kako ja inače slušam i naravno diode samo što mi nisu došle do crvenog
. Inače slušam metal, rock i te fore tak da... JOŠ uvijek nemam problema sa susjedima (živim u stanu u zgradi) 