3.5-inch color screen, 320x480 resolution most, large support 262K colors (RGB666), display colorful. Rich interface, easy to connect a variety of peripherals (, SPI, UART and other peripherals). Support external speakers to play audio. Comes with RGB three-color indicator, rich indication status. Comes with a resistive touch screen, convenient for human-computer interaction. Standard TYPE-C interface, convenient for program download and power supply. With micro-TF card slot, easy to expand storage. Support external lithium battery, and portable. Comes with a battery charge management circuit, which can the safe charging and discharging of the battery. Provide technical support for the underlying driver, data updated online. Module aging test multiple testing up to -grade standards to support long-term stability. ESP32 main control parameters: CPU: ESP32-D0WD-V3, Xtensa dual-core 32-bit LX6 microprocessor. Main Frequency: 240MHz (max). Memory: 448KB ROM+520KB +16KB RTC +4MB external QSPI Flash. WIFI: 2.4GHz, 802.11b/g mode. Bt: Bt V4.2 BR/ and Bt LE standards. Operating Voltage: DC 3.0-3.6V. Operating temperature: -40-85°C When display, speaker and battery charging are all working: 510mA. Power consumption: 0.89W (only display working). Lithium interface charging voltage: range: 4.2-6.5(V); typical value: 5V. Charging current: Maximum value: 500mA; module actual value: 290mA. Recommended external battery specification: 3.7V polymerized lithium battery. Parameter: Operating voltage: 5.0V Backlight current: 104mA Total Current ESP32 reset: 40mA Display only: 160mA Liquid crystal screen parameters: Screen Size: 3.5inch Screen Type: TN TFT Resolution: 320xRGBx480(pixels) Effective display area: 48.96(W)x73.44(H)(mm) Number of colors: Maximum: 262K(RGB666), Common: 65K(RGB565) Driver IC: ST7796U Display Interface: 4-Line SPI (connected to ESP32) Pixel size: 0.153(H)x0.153(mm) Viewing angle: 12 0'CLOCK Backlight Brightness (typical): 300 cd/㎡ Backlight Type: White LED*6 Operating Temperature: -10-60℃ Storage Temperature: -20-70℃ Touch screen parameters: Effective area size: 3.5 inch Touch screen type: resistive touch screen Touch screen resolution: 320x480(pixels) Driver IC: XPT2046 Viewing window size: 49.50(W)x77.24(H)(mm) Communication interface: SPI Structure material: ITO film + ITO glass Operating temperature: -10-60(℃) Storage temperature: -20-70(℃) Size parameters: LCD: 55.50±0.2(W)x84.96±0.2(H)x2.5±0.1(D)(mm)(without wires and backing) Touch Panel: 55.0±0.2(W)x84.36±0.2(H)x1.20 ±0.1(D)(mm) (without wires and backing) Module shape: 55.50(W)x101.50(H)x5.80(D)(mm) Color:As Shown Material:ABS Package Contents: 1 * Development Board Kit 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.