NodeMCU-32-S2-Kit, ESP32-S2 WiFi Development Board, with ESP-12K Module

Description: This is an entry-level development board based on Espressif ESP32-S2 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-S2 has industry-leading low-power performance 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, designed for various applications such as internet of things (IoT), mobile devices, wearable electronics, smart home, etc.

• Onboard ESP-12K module that comes with a PCB antenna
• Onboard CH340, USB to UART converter
• 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

Features:

• Complete Wi-Fi 802.11b/g/n, data rate up to 150Mbps
• Built-in ESP32-S2 chip, Xtensa® single-core 32-bit LX7 microprocessor, support up to 240 MHz clock frequency, with 128KB ROM, 320KB SRAM, 16KB RTC SRAM
• Support UART/GPIO/PWM/ADC/I2C
• Integrate Wi-Fi MAC/ BB/RF/PA/LNA
• Support multiple sleep modes, deep sleep current is less than10uA
• Built-in Lwip protocol stack
• Support STA/AP/STA+AP work 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

Specifications:

• Dimensions: 59.05mm x 25.50mm
• Package: DIP-42 (2.54mm pitch standard pin header)
• Antenna: PCB antenna OR IPEX connector
• WiFi frequency range: 2400~2483.5MHz
• Operating temperature: -40℃ ~ 85 ℃
• Storage condition: -40 ℃ ~ 125 ℃, < 90%RH
• Power supply
  Micro USB supply voltage 4.75V~5.25V, 5.0V recommended;
  Pin header supply voltage 3.0V ~ 3.6V, supply current > 500mA, 3.3V recommended
• Serial port data rate: support 110 ~ 4608000 bps, 115200 bps by default
• WiFi security: WEP/WPA-PSK/WPA2-PSK
• SPI Flash: default 32Mbit (i.e. 4MByte)
• PSRAM: 8MByte PSRAM

Wiki: www.waveshare.com/wiki/NodeMCU-32-S2-Kit