Description:

• Uses CH340G instead of CP2102.
• NodeMCU has built-in USB-TTL serial with super reliable industrial strength CH340G for superior stability on all supported platforms.
• Communication interface voltage: 3.3V.
• 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)
• Support Smart Link Smart Networking
• Working temperature: -40 ℃ ~ + 125 ℃
• Drive Type: Dual high-power H-bridge driver
• ESP8266 has IO Pin
• Don’t need to download resetting
• A great set of tools to develop ESP8266
• Flash size: 4MByte
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Specifications:

• Support 802.11b/g/n
• WIFI frequency range 2400 ~ 2483.5MHz
• Interface Type: Standard micro USB+ 2.54mm spacing pin header
• UART/GPIO/ADC/PWM/I2C/I2S interface provided
• Bring R/G/B three-in-one lamp beads
• Integrated Wi-Fi MAC/BB/RF/PA/LNA
• Cascade rate up to 4 Mbps
• Embedded Lwip protocol stack
• Supporting STA/AP/STA AP operating model
• One-click configuration for Android, IOS Smart Config (APP)/AirKiss
• Supports local serial port upgrades and remote firmware upgrades (FOTA)
• Generic AT instructions can be used quickly
• Supports secondary development, integrates Windows、Linux development environment