NodeMcu V3 Development Board ESP8266 ESP-12E (CH340G driver)
Communication interface voltage: 3.3V.
ESP8266 CH340G driver for NodeMcu Lua V3
Antenna type: Built-in PCB antenna is available.
Wireless 802.11 b/g/n standard
WiFi at 2.4GHz, support WPA / WPA2 security mode
Support STA/AP/STA + AP three operating modes
Built-in TCP/IP protocol stack to support multiple TCP Client connections (5 MAX)
D0 ~ D8, SD1 ~ SD3: used as GPIO, PWM, IIC, etc., port driver capability 15mA
AD0: 1 channel ADC Power input: 4.5V ~ 9V (10VMAX), USB-powered
Current: continuous transmission: ≈70mA (200mA MAX),Standby: <200uA Transfer rate: 110-460800bps Support UART / GPIO data communication interface Remote firmware upgrade (OTA) Flash size: 4MByte