ESP8266 NodeMCU V2 Development Board Electrical Circuitry & Parts ESP8266 NodeMcu V3 development board CH-340-Black

SKU: GRIC821028

Tk 399
  • Wireless 802.11 b / g / n standards;
  • Support STA / AP / STA + AP three operating modes;
  • Built-in TCP / IP protocol stack to support multiple TCP Client connection (5 MAX);
  • D0 ~ D8, SD1 ~ SD3: used as GPIO, PWM, IIC, etc. Port Drive 15mA;
  • AD0: 1 channel ADC;
  • Power input: 4.5V ~ 9V (10VMAX), USB-powered, providing USB debugging interface;
  • Current job: keep sending: ≈70mA (200mA MAX), Standby: <200uA;
  • Transfer rate: 110-460800bps;
  • Support UART / GPIO data communication interface;
  • Remote firmware upgrade (OTA);
  • Drive Type: Dual high-power H-bridge driver
  • Module Weight: about 7g



  • Product details of ESP8266 NodeMcu V3 development board CH-340
  • Open-source platform
  • Interactive & Programmable
  • WiFi enabled
  • Arduino IDE compactible
  • Nodejs style network API
  • ESP8266, a low cost WiFi module on-board (FCC Certified)
  • On-board USB-TTL converter, plug & play
  • Headers – 2.54mm 15-pin header with access to GPIOs, SPI, UART, ADC, and power pins
  • Input Voltage: 7 – 12V
  • Operating Voltage: 3.3V
  • CPU: 32-bit RISC Tensilica Xtensa LX106 running at 80 MHz
  • 64 KB of instruction RAM, 96 KB of data RAM (80x Arduino UNO!)
  • 512 KB of EEPROM (512x Arduino UNO!)
  • External QSPI flash – 512 KB to 4 MB* (up to 16 MB is supported)
  • IEEE 802.11 b/g/n Wi-FiIntegrated TR switch, balun, LNA, power amplifier and matching network
  • WEP or WPA/WPA2 authentication, or open networks
  • Digital I/O Pins (DIO): 16
  • Analog Input Pins (ADC): 1
  • UARTs: 1 on dedicated pins, plus a transmit-only UART can be enabled on GPIO2
  • SPIs: 1
  • I2Cs: 1
  • Flash Memory: 4 MB
  • SRAM: 64 KB
  • Clock Speed: 80 Mhz

Warranty: 6 Months Seller Warranty.
Note: Product delivery duration may vary due to product availability in stock.

Disclaimer: The actual color of the physical product may slightly vary due to the deviation of lighting sources, photography or your device display settings.






  • Wireless 802.11 b / g / n standards;
  • Support STA / AP / STA + AP three operating modes;
  • Built-in TCP / IP protocol stack to support multiple TCP Client connection (5 MAX);
  • D0 ~ D8, SD1 ~ SD3: used as GPIO, PWM, IIC, etc. Port Drive 15mA;
  • AD0: 1 channel ADC;
  • Power input: 4.5V ~ 9V (10VMAX), USB-powered, providing USB debugging interface;
  • Current job: keep sending: ≈70mA (200mA MAX), Standby: <200uA;
  • Transfer rate: 110-460800bps;
  • Support UART / GPIO data communication interface;
  • Remote firmware upgrade (OTA);
  • Drive Type: Dual high-power H-bridge driver
  • Module Weight: about 7g
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