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NodeMCU-ESP-S3-12K-Kit ESP32-S3 WiFi+Bluetooth5.0 Development Board





This is an entry-level development board based on Espressif ESP32-S3 SoC, which is is equipped with Xtensa® 32-bit LX7 single-core processor, operating frequency up to 240 MHz, supports secondary development without using other microcontrollers or processors.

The ESP32-S3 is a low-power MCU-based system-on-chip (SoC) that supports 2.4 GHz Wi-Fi and Bluetooth® Low Energy (Bluetooth LE). It consists of high-performance dual-core microprocessor (Xtensa® 32-bit LX7), a low power coprocessor, a Wi-Fi baseband, a Bluetooth LE baseband, RF module, and peripherals, designed for various applications such as internet of things (IoT), mobile devices, wearable electronics, smart home, etc.

  • Onboard ESP-S3-12K module that comes with a PCB antenna
  • Onboard CH340, USB to UART converter
  • RGB 3-in-1 LED, convenient for secondary development
  • USB port for power input, firmware programming, or UART debugging
  • 2x21pin extension headers, breakout all the I/O pins of the module
  • 2x keys, used as reset or user-defined


  • Complete Wi-Fi 802.11b/g/n, 1T1R mode data rate up to 150Mbps
  • Support BLE5.0, Bluetooth mesh, rate support: 125Kbps, 500Kbps, 1Mbps, 2Mbps
  • Built-in ESP32-S3 chip, Xtensa® 32­bit LX7 dual­core processor, support up to 240 MHz clock frequency, with 384KB ROM, 512KB SRAM, 16KB RTC SRAM
  • Integrate Wi-Fi MAC/BB/RF/PA/LNA//BLE
  • Support multiple sleep modes, deep sleep current is less than 8uA
  • Support STA/AP/STA+AP work mode and mix mode
  • Smart Config (APP) / AirKiss (WeChat) one-click distribution network supporting Android and IOS
  • Support serial local upgrade and remote firmware upgrade (FOTA)
  • General AT command can be used quickly
  • Support secondary development, integrated Windows, Linux development environment
  • NodeMCU-ESP-S3-12K-Kit module will use the built-in 8MByte Flash by default


  • Dimensions: 60.80mm x 25.27mm
  • Package: DIP-42 (2.54mm pitch standard pin header)
  • Antenna: PCB antenna
  • WiFi frequency range: 2400~2483.5MHz
  • Bluetooth: BLE5.0 (traditional Bluetooth is not available)
  • Operating temperature: -40℃ ~ 85 ℃
  • Storage condition: -40 ℃ ~ 125 ℃, < 90%RH
  • Power supply: supply voltage 5V, supply current > 500mA
  • Serial port data rate: support 110 ~ 4608000 bps, 115200 bps by default
  • WiFi security: WEP/WPA-PSK/WPA2-PSK
  • SPI Flash: default 8MByte



Pin definition





CH340 Windows Driver

Other references


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