The NodeMCU ESP-32S is one of the development board created by NodeMcu to evaluate the ESP-WROOM-32 module. It is based on the ESP32 microcontroller that boasts Wifi, Bluetooth, Ethernet and Low Power support all in a single chip.

• Microcontroller: Tensilica 32-bit Single-/Dual-core CPU Xtensa LX6

• Operating Voltage: 3.3V

• Input Voltage: 7-12V

• Digital I/O Pins (DIO): 28

• Analog Input Pins (ADC): 8

• Analog Outputs Pins (DAC): 2

• UARTs: 3

• SPIs: 2

• I2Cs: 3

• Flash Memory: 4 MB

• SRAM: 520 KB

• Clock Speed: 240 Mhz

• Wi-Fi: IEEE 802.11 b/g/n/e/i:

  • Integrated TR switch, balun, LNA, power amplifier and matching network
  • WEP or WPA/WPA2 authentication, or open networks

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