Amazing 40 LED VU Meter Arduino with Peak and Hold

[@szokelevente2078]

Hi! Could you please tell me what should come after val & in your code at the Template function for shifting out 64-bit data section, specifically in this line:
digitalWrite(dataPin, !!(val & ));
The program is throwing an error, and I'm unsure what to put there.

[@RixtronixLAB]

Creative video, thank you :)

[@elecotechoz2455]

Thank you too! Please Subscribe and share

[@redimemes10]

❤❤Nice VU Meter

[@elecotechoz2455]

Thank You 🙏

[@redimemes10]

❤❤

[@xulezhou8012]

i think there are some errors when compiling, "expected primary-expression before ')' token digitalWrite(dataPin, !!(val &)); ", I'm alittle confused. Thanks!

[@elecotechoz2455]

Okay I just checked but nothing find any problems, Can you share me the code line number….?

[@xulezhou8012]

@@elecotechoz2455 line 159 and 165, " digitalWrite(dataPin, !!(val &)); " , I think something is missing after the "&". Thanks

[@e22crd]

Nice Project!!! But uploadcode found error this line
sketch_nov18a:143:37: error: 'nb_LED' was not declared in this scope
"ledPattern |= ((uint64_t)1)

[@elecotechoz2455]

Okay I will check the code and update the video soon! Please subscribe to the channel for notifications! ❤️

[@godwinrodrigues625]

Is possible to drive 20 leds per channel

[@elecotechoz2455]

Yeah why not just change the number of led in code

[@willyp.1995]

Thanks for sharing. Could you please share a link with the arduino sketch, the link you provided in the description does not contain the sketch. Thanks!

[@elecotechoz2455]

I already added the code on my Blogger website but sometime it disappears from due to some HTML technical error okay I will manage it as fast as possible. Please help to grow my channel, please share the video with your friends who love this kinda stuffs and support my channel and subscribe my channel.

[@willyp.1995]

@elecotechoz2455 Thanks for your quick reply. The sketch is not showing in your website's blog yet. Could you please send me the sketch to my email if possible? Thanks!👍👍👍

[@elecotechoz2455]

Done buddy now you can enjoy the VU Meter. Thanks for supporting me😊 if you have any problem in future please comment. Please support me by donate here- paypal.me/AkashSharma1212?country.x=IN&locale.x=en_GB

[@ubaidubaid7090]

Very Nice project but code have too many errors.

[@elecotechoz2455]

But my code is working can you please share the exactly code line number

[@ubaidubaid7090]

@elecotechoz2455
/sdk/hardware/tools/avr/bin/avr-g++ -no-canonical-prefixes -std=gnu++11 -c -g -Os -w -mmcu=atmega328p -DF_CPU=16000000L -DUSB_VID=null -DUSB_PID=null -DARDUINO=10812 -DIDE="ArduinoDroid" -DARDUINO_ARCH_AVR -DARDUINO_AVR_UNO /build/VU_Mtr_Peak_Hold_74HC595.cpp -o /build/VU_Mtr_Peak_Hold_74HC595.cpp.o VU_Mtr_Peak_Hold_74HC595.ino: In function 'void processChannel(int, int, int, int, float&, int&, long unsigned int&, const char*)':
VU_Mtr_Peak_Hold_74HC595.ino:146:37: error: 'nb_LED' was not declared in this scope
VU_Mtr_Peak_Hold_74HC595.ino: In function 'void shiftOut64(uint8_t, uint8_t, uint8_t, uint64_t)':
VU_Mtr_Peak_Hold_74HC595.ino:162:37: error: expected primary-expression before ')' token
VU_Mtr_Peak_Hold_74HC595.ino:168:37: error: expected primary-expression before ')' token
Return code is not 0

[@ubaidubaid7090]

@elecotechoz2455 /sdk/hardware/tools/avr/bin/avr-g++ -no-canonical-prefixes -std=gnu++11 -c -g -Os -w -mmcu=atmega328p -DF_CPU=16000000L -DUSB_VID=null -DUSB_PID=null -DARDUINO=10812 -DIDE="ArduinoDroid" -DARDUINO_ARCH_AVR -DARDUINO_AVR_UNO /build/VU_Mtr_Peak_Hold_74HC595.cpp -o /build/VU_Mtr_Peak_Hold_74HC595.cpp.o VU_Mtr_Peak_Hold_74HC595.ino: In function 'void processChannel(int, int, int, int, float&, int&, long unsigned int&, const char*)':
VU_Mtr_Peak_Hold_74HC595.ino:146:37: error: 'nb_LED' was not declared in this scope
VU_Mtr_Peak_Hold_74HC595.ino: In function 'void shiftOut64(uint8_t, uint8_t, uint8_t, uint64_t)':
VU_Mtr_Peak_Hold_74HC595.ino:162:37: error: expected primary-expression before ')' token
VU_Mtr_Peak_Hold_74HC595.ino:168:37: error: expected primary-expression before ')' token
Return code is not 0

[@xulezhou8012]

nice project, can I adjust the speed of the peak drop (faster)? thanks❤

[@elecotechoz2455]

Yes you can use but it can change the rate the value of serial which you have to work more on code but you can try❤️ So please Subscribe my channel ☺️

[@TechnicalShubhamDeshmukh]

Price sir

[@elecotechoz2455]

This is not for sale I just made and show simple tutorial and if you want then you can contact me