Raspberry Pi-based audio spectrum display (schematic + code)

Overview

Bring a dance party wherever you go with the DFRobot 64x64 RGB Matrix Panel with a Raspberry Pi 3 B+! I had initially tried to use it with an ESP32 Firebeetle, but I couldn't get the library to work properly. So that meant I had to use a Raspberry Pi 3 B+ next. Thankfully, Adafruit offers a matrix HAT for the Raspberry Pi that takes care of all the 3.3v -> 5v logic level conversion. Both the HAT and the matrix have the same connector, but pin 8 (the white wire) is not plugged into the HAT. Because the HAT only supports up to 4 control lines, pin 8 for the 5th control line is connected to GPIO pin 24, making sure to use a 5V power supply that can supply up to 7A.

Design Files

DSLogic-hdl-master.zip

All reference designs on this site are sourced from major semiconductor manufacturers or collected online for learning and research. The copyright belongs to the semiconductor manufacturer or the original author. If you believe that the reference design of this site infringes upon your relevant rights and interests, please send us a rights notice. As a neutral platform service provider, we will take measures to delete the relevant content in accordance with relevant laws after receiving the relevant notice from the rights holder. Please send relevant notifications to email: bbs_service@eeworld.com.cn.

It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

Hot

Technical Resources More

Search Datasheet?

Supported by EEWorld Datasheet

Technical Videos More

Forum More

Update:2025-06-03 15:38:39

Recruiting STMCU Motor Control FAE
ST agent is recruiting a FAE for motor control applications. If you are interested, please send your resume to my email ( grant_jx@163.com ), and I will help recommend you. The resume must indicate th
NAND FLASH bad block detection takes different time for different blocks
pxa255+wce4.2 system, nand flash has 8192 blocks in total. When booting to detect bad blocks, the first 1000 or so are very slow, but the latter are very fast. I don't know why? I set FMD_GetBlockStat
Switch OUT?! Nintendo's latest recruitment may be aimed at the next generation console
Recently, Nintendo updated a recruitment notice on its official website, stating that it will recruit power circuit designers (AC/DC, DC/DC) and announced specific job requirements. Nintendo may be pr
The principle of quantitative change to qualitative change also applies to the process of FPGA learning.
It has been nearly a year since I came into contact with FPGA last year. Although I was distracted by all kinds of things during this year and did not have much time to learn FPGA, I still gained a lo
How to get the properties of each handle in the process
When using process explorer, I found that it can display all handles of a process, such as all file handles opened by the process. How is this achieved? Which API function is used?
Programs written using SDK built using BSP
Hello, seniors! I am currently practicing some CE programs that are written using the SDK created by my PB! The SDK project is created using the manufacturer's BSP. Can the platforms that my program c

Datasheet More

Circuits More