This project is a 5.1-channel, analog audio processor based on PT2322 and Arduino Nano. This inexpensive audio processor contains 6-channel individual channel attenuators, a 3-way tone control system for front-end speakers, and a 3D audio simulation system.
This video shows the assembling, firmware installation, and testing of the 5.1-channel audio processor board.
Additional information on this project, including the schematic, PCB layouts, compiled binary files, and complete source codes, are available at [ Ссылка ].
The PCBWay sponsored this project. The 5.1-channel audio processor PCB is available to order from PCBWay: [ Ссылка ]
Content of the video:
00:00 - 5.1-channel audio processor PCB
00:06 - Soldering the PT2322 IC
00:38 - Soldering SMD resistors
02:48 - Soldering SMD capacitors
03:28 - Soldering the LM78M08 regulator IC
03:58 - Soldering electrolytic capacitors
05:40 - Soldering through-hole-type resistors
06:03 - Soldering tactile switches
06:25 - Installing 2.54mm female headers
06:48 - Soldering connectors
07:20 - Assembled audio processor board
07:26 - Installing the Arduino Nano board
07:31 - Connecting DC power cable
07:41 - Connecting audio input and output cables
08:13 - Connecting the USB cable
08:15 - Connecting 12V DC power source
08:23 - Obtaining the source codes and Compiling the control application
08:57 - Compiling Arduino firmware using PlatformIO IDE
09:26 - Installing compiled firmware to the Arduino Nano board
09:56 - Testing the board with the control application
