The core of this module is the ESP32 chip, which is scalable and self-adaptive.The clock frequency can be adjusted from 80MHz to 240MHz, and it supports RTOS.It is a general- Wi-Fi+BT+ MCU moduleThe Nodemcu-32s module integrates Bluetooth, Bluetooth Low Energy and Wi-Fi.It has a wide range of uses: Wi-Fi supports a wide range of communication connections and also supports direct connection to the Internet through routers; while Bluetooth allows users to connect to mobile phones or broadcast Beacon for signal detection.The data transmission rate supported by the module is as high as 150Mbps, and the antenna output power reaches 20dBm, which can realize wide-range wireless communication.Features:802.11b/g(802.11n, to 150Mbps)WIFI frequency range 2400~2483.5MHzClockfrequency adjustment range 80MHz to 240MHzSupport RTOS Built-in 2-channel 12 bit high-precision , up to 18 channelsSupport UART/GPIO//DAC/SDIO/PWM/I2C/I2S interfaceSupport multiple sleep modes, the sleep current of ESP32 chip is less than 5AEmbedded Lwip protocol stackSupport STA/AP/STA+AP working mode Support serial port local upgrade and remote firmware upgrade (FOTA)General AT commands can be used quicklySupport secondary development, integrated Windows, Linux development environmentType: Development BoardMaterial: PCBcolour: blackPackage Contents:1 x Development BoardOnly 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.