Touch screen desktop tools based on ESP32S3 - Internet radio /PC monitoring, etc

The basic inspiration of the gadget comes from the classic project small TV, replacing the small screen of the small TV with a 3.5-inch capacitive touch screen, and then upgrading the software firmware and adding more interactive gameplay to become this gadget.

The circuit diagram mainly includes the following modules:

1. ESP32S3 chip module, basically all legs are used, including power-on reset (RESET) and USB to serial port connector, when USB data is not easy to use, you can use data brushing;

2. USB circuit, 5V~3.3V conversion circuit (use AMS1117);

3. I2S to audio signal module, using MAX98357, class D power amplifier, when playing music in the network radio page, display FFT audio graphics, volume adjustment function;

4. Audio to digital signal module, using silicon microphone MSM261, this part is not used in the current software function for the time being, and it will be considered for voice dialogue TTS/STT in the later stage;

5. Clock module, old friend RX8025;

6. The screen interface module, the screen uses a 3.5-inch TFT LCD display capacitive touch ST7796 to drive the serial port screen, and the link is https://m.tb.cn/h.UzAx0Kn?tk=MAFldrn5cve

7. Expansion interface, convenient to expand all other modules that are inconvenient to be placed directly on a board, to achieve other functions and can be disassembled;

8. CK22AT is currently only reserved, and no soldering is required for replication

The features that have been implemented so far include:

1. Home page - time calendar thermometer.

There are no special features, just look at it.

2. Click [RADIO] to enter the Internet radio page, which can be achieved:

- Click the round button in the lower left corner to switch the existing online music stations, including Swiss, Russian radio stations, etc., play the music and display the current music name;

- After the music starts, there is a volume control bar on the right side of the screen, click the small speaker to mute, tap the upper half of the control bar to turn up the volume, and the lower half to turn down the volume; Click the switch button on the cat's forehead to pause the music playback; Tap again to continue playing;

- After the music playback starts, click the back button in the upper left corner, the page will return to the home page, the music will continue to play without being affected, you can adjust the playback volume at any time, and temporarily play the music;

[As the name suggests, the network radio module needs to be connected to the network, so the premise that it can work normally is that the wifi function is started normally and can work]

3. Click [CALENDER]

4. Click [HWMON] on the home page to enter the PC operation monitoring page;

[The page can only be used normally after Bluetooth pairing with a nearby PC, and the cpu and gpu data are communicated through Bluetooth, so the monitoring page can only be seen when Bluetooth works normally]

Because there are too many ways to play, other functional modules may be added in the future, so ESP32S3 is used.

The shell is purchased from the Qiliang Liang cat box drawings of the B station up Mango Xiaoqiang DY.,It's useless but it's a good thing to look at.,It's completely optional.

Make a video: https://www.bilibili.com/video/BV1LP411q7iQ/

There is a set of simple shells, if you want stl, or want the current version of the bells and whistles of the software firmware (compiled version, sorry for not open source), you can enter the QQ group 305747, and get it in the group file.