I2S Microphone Expansion Board ICS-43434

This project is used as an expansion board for those who previously built the 50mm AIO version hardware to upgrade to the spectrum version.
If you haven't built the 50mm prism hardware, you can directly choose the latest spectrum version hardware for prototyping.
 
Data creation and sharing group: QQ group number: 927298543. Password: 9557.
 
Function demonstration:
[Open source hardware] Who wouldn't love such a new firmware? 50mm prism version mini-TV demo - music spectrum - dynamic background clock - 3D video - AIDA64 secondary screen_Bilibili_bilibili. Those who
have previously built the 50mm AIO version hardware and want to use the spectrum version firmware can also flash it, but because the hardware doesn't support it, the spectrum function cannot be used, but other functions can. 1. Music spectrum 2. Dynamic background clock 3. Play video and image 4. AIDA64 secondary screen - display computer working status 5. Web page control operation 6. VX mini-program control. This firmware was written by up: Sanalan's Twilight. The firmware is not open source; a bin file is provided for burning. Activation costs 9.9 yuan. Available through Bilibili's "Twilight of Sanaran" or on Xianyu. Unactivated versions still offer all features, but will display an "unactivated" message. You can test it out before purchasing.