• You may need the CP2102 driver available from the Silabs website. It is free and easy to install.
• This board features the ESP8266 ESP-12F but has all of its pins broken out. This enables the ESP8266 to be breadboard compatible. It also has an integrated micro-usb port which makes powering and programming the chip far easier compared to having to use a usb-to-serial adapter.
• The NodeMcu firmware can be loaded easily if you want to develop programs in Lua. It is also compatible when other leading micro-controller development platforms.
• This board has a female Micro-USB port on the board for power and program uploading. This port type is very common on many consumer electronics and on smartphones.
• Flashing this device is easy. To flash, just hold the flash button and perform the flash using firmware programming software.

• Uses CP2102
• NodeMCU has built-in USB-TTL serial with reliable industrial strength CP2102
• CP2102 provides 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
• Logical current: 0mA-36mA
• Transfer rate: 110-460800bps
• Support UART / GPIO data communication interface
• Support Smart Link Smart Networking
• Working temperature: -40 Cel. ~ + 125 Cel.
• 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: 4 MByte
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