Node MCU Wi-Fi Development Board – ESP8266

Wireless 802.11 b / g / n standard

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)

Support Smart Link Smart Networking

Working temperature: -40 ℃ ~ + 125