2022Y-T3P-STM32F103 development board

 
Basic hardware information of STM32F103C8T6 development board :
Main control: STM32F103C8T6
Buck: AMS1117-3.3
Screen: 1.14-inch TFT-LCD color screen, ST7789 driver, resolution 135 x 240
USB interface, with 4 buttons
 
The test hardware is different from the schematic diagram Several places:
R6, R7 two resistors, the schematic diagram uses 330 ohms, personally think it is too bright, change the current limiting resistor R6 of the blue LED to 5.1K, change the current limiting resistor of the green LED to 10K.
R11 is the backlight The current limiting resistor, the schematic diagram uses 5.1K, the screen will be darker, this can be short-circuited, it will be the brightest state directly, the test hardware is changed to 330 ohms.
 
The test uses Arduino, so you don’t have to get the driver yourself:
1. Open Arduino, select Library management, download Adafruit's GFX library, ST7734 & ST7789 library, during the process you will be prompted to install Adafruit's BusIO library, so there are 3 in total.
2. Click Tools-Development Board-Select Generic STM32F1 series (you need to install other development provided by ST This is only available on the board), and then select Generic F103C8Tx in Tools-Board part number.
3. Click File-Example-Adafruit ST7734 and ST7789 Library-graphicstest_ST7789
and the sample project file will automatically open, and change the pins to this development board Correspondingly, as shown below: (the comments are very detailed, you can check it by yourself)
 
Then turn on the backlight, that is, set PA8 to low, and you can upload the program.
 
Sample program function test picture:
The GFX library function is very powerful, and the performance is average. See the video of the sample program running. Only text is displayed in the picture.