NodeMCU-ESP-S2-12K Development Board ESP32-S2 Chip 32Mbit SPI Flash 8MByte PSRAM
NodeMCU-ESP-S2-12K Development Board ESP32-S2 Chip 32Mbit SPI Flash 8MByte PSRAM

    NodeMCU-ESP-S2-12K Development Board ESP32-S2 Chip 32Mbit SPI Flash 8MByte PSRAM


      Reminder: Modules and development board products are sensitive to static electricity, so please do a good job of electrostatic protection when using, so as to avoid problems such as loss of internal programs.

      User Guide:

      The NodeMCU-ESP-S2-12K development board is a core development board based on the ESP-12K module. The development board continues the classic design of the NodeMcu development board. Users can connect peripherals according to their own needs. When developing and debugging with a breadboard, the standard pin headers on both sides make the operation easier and more convenient.

      ESP-12K module core processor ESP32-S2 is a highly integrated low-power Wi-Fi system-on-chip (SoC), designed for Internet of Things (IoT), mobile devices, wearable electronic devices, smart homes, etc. ESP32-S2 has industry-leading low power consumption and RF performance, supports IEEE802.11b/g/n protocol, integrates Wi-Fi MAC, Wi-Fi RF and baseband, RF switch, RF Balun, power amplifier, low noise amplifier, etc.

      The ESP32-S2 chip is powered by an Xtensa® 32-bit LX7 single-core processor that operates at up to 240 MHz. The chip supports secondary development without using other microcontrollers or processors. The chip has built-in 320KB SRAM, 128KB ROM. ESP32-S2 supports a variety of low-power working states, which can meet the power consumption requirements of various application scenarios. The unique features of the chip, such as fine clock gating function, dynamic voltage clock frequency adjustment function, and RF output power adjustment function, can achieve the best balance between communication distance, communication rate and power consumption.

      ESP32-S2 provides rich peripheral interfaces including SPI, I2S, UART, I2C, LED PWM interface, ADC, touch sensor, temperature sensor and up to 43 GPIOs. It also includes a full-speed USB On-The-Go (OTG) interface that supports communication using USB.

      ESP32-S2 has several unique hardware security mechanisms. Hardware encryption accelerator supports AES, SHA and RSA algorithms. Among them, RNG, HMAC and Digital Signature modules provide more security performance. Other security features include flash encryption and se-cure boot signature verification. The perfect security mechanism enables the chip to be perfectly applied to various encryption products.


      • Complete 802.11b/g/n Wi-Fi SoC module with data rates up to 150Mbps
      • Built-in ESP32-S2 chip, Xtensa® single-core 32-bit LX7 microprocessor, supports up to 240 MHz clock frequency, has 128KB ROM, 320KB SRAM, 16KB RTC SRAM
      • Support UART/GPIO/ADC/PWM/I2C/I2S/USB interface, support touch sensor, temperature sensor, pulse counter
      • Available in DIP-42 package
      • Integrated Wi-Fi MAC/BB/RF/PA/LNA
      • Supports multiple sleep modes, the deep sleep current is less than 10uA
      • Serial port rate up to 4Mbps
      • Embedded Lwip protocol stack
      • Support STA/AP/STA+AP working mode
      • Supports Smart Config (APP)/AirKiss (WeChat) one-key network configuration for Android and IOS
      • Support serial port local upgrade and remote firmware upgrade (FOTA)
      • General AT commands can be used quickly
      • Support secondary development, integrate the security mechanism of Windows and Linux development environment, so that the chip can be perfectly applied to various encryption products.


      • Model: NodeMCU-ESP-S2-12K
      • Dimensions: 59.7*25.4*12.9mm(+-0.2mm)
      • Package: DIP-42 (2.54 pitch standard header)
      • Antenna form: On-board PCB antenna or IPEX socket
      • Frequency range: 2400~2483.5MHz
      • Interface: UART/GPIO/PWM/ADC/I2C
      • Working temperature: -40℃ ~ 85℃
      • Storage Environment: -40 ℃ ~ 125 ℃ , < 90%RH
      • Power supply range: Micro USB power supply voltage 4.75V~5.25V, 5.0V recommended;Supply voltage 3.0V ~ 3.6V, supply current >500mA, 3.3V recommended
      • Serial port rate: Support 110 ~ 4608000 bps, default 115200 bps
      • Security: WEP/WPA-PSK/WPA2-PSK
      • SPI Flash: 32Mbit default
      • PSRAM: 8MByte PSRAM

      Packing List:

      • 1x NodeMCU-ESP-S2-12K Development Board


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