DIY Audio Spectrum Analyzer LCD Display | 6 Patterns | Arduino & 1602 LCD

This is an Audio Spectrum Analyzer Display (LCD VU Meter) made with Arduino Nano / UNO & 16x02 LCD module. You have the option of select a pattern out of 6 and it has the power off memory (pattern stays the same even the unit power is disconnected and reconnected). Full arduino code is linked below. Enjoy!.

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Visit my other VU Meters & Audio Spectrum Analyzer Projects here

“Audio Spectrum Analyzer LCD_V1” Arduino Libraries and Arduino Code

Main Parts Links
Nano-3.0v-ATmega328-5V-16M-CH340 (Arduino Nano)

LCD16x02 Display Interactive Interface Single-Chip Blue

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[HAZITECH]

Visit my other VU Meters & Audio Spectrum Analyzer Projects here

[NoizeOYH]

Thanks mate really good job, it works perfect. for those stuck with a row of blocks. Mates according to the diagram, probably you forgot to wire the pushbutton even on ground. it actually does that without grounding it.

[piyangalaproduction]

Thank ayye hamadama oya godak watina videos genawata. Arduino flight ekak hadana ekakauth danna hode. Best of luck 👍👍

[DesigrSajib]

just thanks for the detailed masterful video tutorial

[HermanFilip]

Hey, thanks for sharing this project! Works great altough I think as you've described in response for another comment the sensitivity would be better without I2C but with I2C it works fine for me.
One thing I noticed is that the spectrum goes to around 9 kHz and that's it. Would it be possible to make the spectrum to go as far as 16 kHz? If so, what changes would be necessary. Thanks!

[sandeshrahate]

Thank you HAZI TECH, you Are Amazing
i wait for ver. 2

[notny]

I'd like to do a 10-band spectrum analyzer using 10 strips of individually addressable led strips as the output rather than the lcd display. Could this be adapted for that?

[williamgaris]

Could a KY-037 Sound Sensor be used as an input instead of the 3.5mm output? Thank you!

[vsgsabhinav]

my lcd display only shows full of rectangle in top row and no output what is the problem?

[supernaturalaid]

i constructed two pieces but they didnt work wirng was according to circuit diagram. included libs also uploaded the code it uploads successfully but dont wok just one static line shows up, is there any change in ciruit diagram

[supernaturalaid]

in demo clip you have shows LCD all pins soldered while in circuit diagram data pics nor used D0 D1 D2 D3 not used id lcd. can it be difference of NAANO and NAN0 V3.0? i have simple nano with atmel 328p and it uploads on new bootlogger doesnt work on oldbootlogger please help

[Ash-wnld]

Does this really show the frequencies or is it random and only for visuals

[drwconceptpoweramplifier]

awesome! This is nice! Its a good HMI, thanks for sharing.

[kanastudios]

Your project awesome
I did the project
It's work
Thank you 😊

[FlyingPlatypusGamess]

Hi Hazi,

I've built your system but all i'm getting on my lcd screen is the top row of characters are completely filled out, and the bottom row does not show at all.

Have you had this before?

I've made 2 input units ( the 3 resistors and the cap) and i've used 2 different lcd screens.
I'm using this arduino nano : "Nano 3.0 Atmega328 5V 16 MHz "
I have tried it on my genuine Arduino uno, same result.

Also, when i println my A0 to the serial monitor, i only get the value 14. nothing else.

I fixed it by altering the code so there is no need for a button and wired rw to ground. Also removed the potmeter and used a digital out instead. Works great.

[djpaternusbartd]

Thank You ! My Device start working ! Bart. Poland.

[DesigrSajib]

can I purchase it from Bangladesh please let me know 🤗

[ElectrolabAg]

Hi Hazi Tech, I really like your projects and I build most of them. They work great. I am trying to do a Charity project for my local archery club where I design an adjustable countdown timer with audible sound and I am stuck with the design and I was wondering if you can help me out as you are an expert with Arduino. The countdown clock must be able to set what ever time is program with audible notification. eg. if I set the time for 4 minutes and 10 seconds, I push a button to start, a single audio signal blast and after the 10 seconds there is 2 audio blast and a green light turns on. While the time is counting down and it reaches 30 seconds remaining, a amber light comes on and at the end of the 4 minutes time a 3 audio sound blast and a red light comes on. Then the operator needs to repeat the time again

[orange_tweleve]

Hello, i see you've used an lcd display for the job, would it be possible to use a 0.96 inch oled display ( 7 pin ) in the 4SPI mode ?if so which pins should i connect ? ( ive got GND, VCC, D0, D1, RES, DC and CS )

[awnisharma]

Excellent project. Thanks for sharing. Can you make this with LED bar modules which has 10 leds inbuilt please.