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Features: 1.Low power dual core 32-bit cpu, can be used as an application processor 2.With a clock frequency of up to 240mhz and a computing power of up to 600dmips 3.Built in 520kb sram 4.Support uart/spi/pwm/dac/adc and other interfaces 5.Equipped with a tf card slot for easy expansion of storage 6.2.8-inch color screen, supporting 16 bit rgb 65k color display 7.Support smart config/airkiss one click distribution network  Parameters:  Product name:esp32 wifi+bt dual mode development board display screen Display color:rgb 65k color Size:2.8 inches Type:tft Driver chip:ili9341 Resolution:320*240 Visible area:43.2*57.6mm Perspective:>60° Working temperature:-20~70℃ Working voltage:5v Power consumption:115ma Bluetooth:Bluetooth 4.2br/edr and ble standards Wifi:802.11b/g/n/ Supported interfaces:uart spi、sdio、i2c、ir、adc、dac、pwm Io ports:22 Serial port speed:default 115200bps Spectrum range:2412~2484mhz Antenna form:onboard pcb antenna, gain 2dbi Security:wpa/wpa2/wpa2 enterprise/wps Transmission frequency:802.11b:17±2dbm (@11mbps) /802.11b:14 ± 2dbm (@54mbps)/ 802.11b:13 ± 2dbm (@mc57) Interface sensitivity Cck,1mbps:-90dbm Cck,11mbps:-85dbm 6mbps(1/2bpsk):-88dbm 54mbps(3/464-qam):-70dbm Mcs7(65mbps,72.2mbps):-67dbm Package include: Display screen*1 Touch pen*1 Type-c data cable*1 4p terminal to dupont wire*1 2.8inch ILI9341V Product parameters: Working voltage: 5.0V Backlight current: 75mA Total current ESP32 reset: 40mA Only the display screen works: 130mA Display screen, speaker, and battery charging all work: 480mA Power consumption: 0.65W (only the display screen works) Lithium battery interface charging voltage: range: 4.2~6.5 (V) Charging current: maximum value: 500mA; Module actual value: 290mA Suggested external battery specification: 3.7V lithium polymer battery ESP32 main control parameters CPU: ESP32-D0WD-V3, Xtensa dual core 32-bit LX6 microprocessor Main frequency: 240MHz (maximum) Storage: 448KB ROM+520KB SRAM+16KB RTC SRAM+4