NodeMCU Wi-Fi Development Board

Specifications 

• Current :  70mA (200mA MAX) , Standby: <200uA;
• DC Current per I/O Pin : 15 mA
• I/O Pins :
  • Digital Pins – D0 ~ D8
  • SD1 ~ SD3 – used as GPIO PWM Pins
  • IIC interface
  • AD0 – 1
• Input Voltage : 4.5V ~ 9V (10VMAX) V
• Length x Width x Height :  49mm x 24.5mm x 13mm
• Operating Voltage : 3.3V
• WiFi : 802.11 b / g / n
• Special Features : 
  • Support STA / AP / STA + AP three operating modes
     
  • Built-in TCP / IP protocol stack to support multiple TCP
     
  • Client connection (5 MAX)
     
  • Providing USB debugging interface
     
  • Transfer rate: 110-460800bps
     
  • Support UART / GPIO data communication interface
     
  • Remote firmware upgrade (OTA)
     
  • Smart Link supports intelligent networking capabilities
     
  • Drive Type: Dual high-power H-bridge driver