Description
This is a 1.3 inch display screen with a resolution of 240 (RGB) x240. It is an IPS full view LCD display panel so the color looks great in any direction. The drive IC is ST7789, and the universal 7-pin SPI interface is used.
The bottom has an SD card slot, which makes it easy to load full-color bitmaps from the MicroSD card in FAT16/FAT32 format.
Support the main control MCU such as ESP32/ESP8266/Arduino/STM32.

Specification
    - Built-in microSD slot
- Operating Voltage: 3.3V
- Backlight: 2-Chip white LED, Vf=3.2V(If=20mA)
- Resolution: 240 (RGB) x240
- Interface: SPI serial
- Drive IC: ST7789
- Dimension: 35.8mm x 35.8mm x 5.3mm
Pin Description
    
        
            | No. | Symbol | Description | 
        
            | 01 | GND | GND | 
        
            | 02 | VCC | Power Supply3.3V: U3 disconnected, J1 short circuited
 5V: U3 welding, J1 disconnected
 | 
        
            | 03 | SCL | SPI Clock Signal | 
        
            | 04 | SDA | SPI Data Signal | 
        
            | 05 | RESET | Reset Control Signal | 
        
            | 06 | A0 | Data/Command Selection Pin0: Command
 1: Data
 | 
        
            | 07 | BL | Backlight Control PinHigh level: enable backlight
 Low level: disable backlight
 | 
    
 
    
        
            | No. | Symbol | Description | 
        
            | 01 | CS1 | LCD Chip Selection PinJ2 is short circuited to ground: not in use
 J2 is disconnected: in use
 | 
        
            | 02 | CS2 | Character Library Chip Selection Pin | 
        
            | 03 | CS3 | SD Card Selection Pin | 
        
            | 04 | FSD | Character Library Chip and SD Card Data Output Pin | 
    
 
 
  
  
 
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