NodeMCU Lua V3 ESP8266 Internet of Things IoT Wireless Development Module

Uses CH340G instead of CP2102 NodeMCU has built-in USB-TTL serial Communication interface voltage : 3.3V Antenna type: Built-in PCB antenna 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, I2C, 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) Working temperature : -40 Deg ~ + 125 Deg Flash size : 4MByte