USB Monitor V1.3 (stc)

Main control: STC8G1K17 (not recommended, you can replace it with other more affordable models)
Current detection chip INA199, which is priced at 1.45 yuan on a certain treasure
. Power chip: SPX1117, which is sold on a certain treasure for 0.88 yuan (not recommended, it is recommended to replace it with RT9013, which has a smaller area) )
Display module: 0.96 OLED LCD screen, priced at 10 yuan on a certain product (originally I planned to use Lao Wang’s 0.5 yuan SH1107 screen, but it requires an external boost driver, and I can’t figure out the driver, and the screen is always distorted)
PCB Jiali Chuangbai whoring 0 The meta-
 
code is poorly written, it is purely for testing.
 
Looking forward to
the next version, we may consider changing the main control to CH573. The mobile phone host computer
has a built-in Bluetooth connection. There is a reserved button that is not used. We may consider making a waveform display
and attaching the test code.