ESP32-S module WiFi+Bluetooth module ESP32 serial to WiFi /Double antenna module The main chip adopts a dual-core 32-bit CPU with low power consumption, with the main frequency up to 240MHz and the computing power up to 600DMIPS Default is 32Mbit SPI Flash, 520KB SRAM SoftAP and Station modes are supported 802.11b/g/n wi-fi + BT/BLE SoC module with super small volume Support the UART/SPI, I2C/I2S/PWM/ADC, DAC and so on Firmware upgrade support (FOTA) Antenna supports onboard antenna or IPEX seat output