Equipped with high-performance Xtensa 32-bit LX7 dual-core processor, main frequency up to 240MHz Support 2.4 GHz Wi-Fi (802.11 b/g) and Bluetooth 5 (LE), onboard antenna Built-in 512KB and 384KB ROM, stacked 16MB Flash and 8MB PSRAM Onboard 4-inch capacitive touch screen, 480x480 resolution, 65K color Support I2C interface to control capacitive touch, 5-point touch, support interrupt Onboard CAN, RS485, I2C interface and Micro-SD card holder, etc., integrated full-speed USB serial port Support flexible clock, module power separate setting and other precise control, realize multi-scenario low power mode Processor: Xtensa 32-bit LX7 dual-core processor Screen size: 4 inches Resolution: 480x480 resolution Application scenarios: Smart switch, HMI human-machine interface, LVGL GUI development (The product appearance and printed words depending on the batch, but this does not affect use) Colour:As Shown Material:Plastic+PCB Package Contents: 1 x Development Board 1 x Terminal Block 10P Spacing 3.5mm KA Plug 1 x Terminal Block 10P Spacing 3.5mm Plug Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.