Fangrui Product Details Fangrui Product Details Adopting 802.11b/g/wifi+bt Module; Low Power Dual Core 32-bit Cpu, Can Be Used As An Application Processor; The Main Frequency Can Reach Up To 240mhz, And The Computing Power Can Reach Up To 600dmips; Built In 520kbsram; Support Uart/spi/i2c/pwm/dac/adc And Other Interfaces; Support Openocd Debugging Interface; Supports Multiple Sleep Modes, With A Current As Low As 6.5ua During Deep Sleep; Embedded Lwip And Freertos; Support Sta/ap/sta+ap Mode; Support Smart Config/airkiss One Click Network Configuration; Universal At Commands, Easy To Learn; Support Local Serial Port Upgrade And Remote Upgrade (fota). Product Name: Esp32 Wifi+bt Dual-mode Development Board Spi Flash: Default 32mbit Bluetooth: Bluetooth 4.2br/edr And Ble Standards Wi-fi:802.11b/g/n/ Supported Interfaces: Uart Spi,sdio,i2c,pwm,i2s,ir,adc,dac On Chip Sensors: Hall Sensors, Temperature Sensors, Capacitive Touch Sensors Io Ports: 22 Serial Port Speed: Default 115200bps Spectrum Range: 2412-2484mhz Antenna Form: Onboard Pcb Antenna With A G Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.