ESP32 development board, standard 2.8-inch TFT screen and resistor , support one-key automatic download, provide for LVGL demo and for examples Use low-power dual-core 32-bit CPU, which can be used as an application processor. The main frequency is up to 240MHz, and the computing power is up to 600 DMIPS. Built-in 520 KB SRAM Support UART/SPI/I2C/PWM/ADC/DAC and other interfaces. Support OV2640 and OV7670 cameras, built-in flash. Support picture WiFI upload Support TF card. Support multiple sleep modes. Embedded Lwip and FreeRTOS. Support STA/AP/STA+AP working mode. Support Smart Config/AirKiss one-click network configuration. Support secondary development Working voltage:4.75-5.25V. SPIFlash default:32Mbit RAM internal:520KB Wi-Fi 802.11b/g/e/i Bluetooth:Bluetooth 4.2BR/ and BLE standard Support interface (2Mbps) UART, SPI, I2C, PWM Support TF card, maximum support 4G IO port 9 Serial port rate default 115200bps Spectrum range:2400 - 2483.5MHz Antenna form:Onboard PCB antenna, gain 2dBi Image output format:JPEG (only OV2640 support), BMP, GRAYSCALE Packaging :DIP-16 Transmit power: 802.11b:172dBm (@11Mbps) 802.11g:142dBm (@54Mbps) 802.11n:132dBm (@MCS7) Receiving sensitivity: , 1Mbps:-90dBm , 11Mbps:-85dBm 6Mbps(1/2BPSK):-88dBm 54Mbps (3/464-QAM):-70dBm MCS7 (65Mbps, 72.2Mbps):-67dBm Power consumption Turn off the flash:180mA@5V Turn on the flash and adjust the brightness to the maximum: 310mA@5V Deep-sleep:The lowest power consumption can reach 6mA@5V Moderm-sleep:the lowest can reach 20mA@5V Light-sleep:the lowest can reach 6.7mA@5V Security WPA/WPA2/WPA2-Enterprise/WPS Working temperature:-20-70 Storage environment:-40-125, Less than 90%RH Application: Homesmart device image transmission, Wireless monitoring, Smart agriculture, QR wireless recognition, Wireless positioning system signal And other IoT applications Colour:Yellow Material:PC+Metal Package Contents: 1 * ESP32 Smart Display Screen 1 * cable 1 * touch pen 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.