Controller module

The controller module is a low-cost Wi-Fi chip with full TCP/IP stack and MCU (microcontroller unit) capability. This small module allows microcontrollers to connect to a Wi-Fi network and make simple TCP/IP connections using Hayes-style commands. Controller can be connected with Micro USB connection or with WIFI connection.


  • 11 digital input/output pins
  • Micro USB connector
  • Compatible with ArduinoIDE
  • Compatible with nodemc
  • 4 MB flash-memory

Electrical connection

Modules are using following I/O ports

  • RGB LED Shield GPIO4
  • Relay Shield GPIO5
  • OLED Display Shield GPIO4, GPIO5
  • Motor Shield GPIO4, GPIO5
  • Temperature/Humidity DHT Pro Shield GPIO2
  • Sensor Shield (ITT ver. 1.1) GPIO4, GPIO5, GPIO6, GPIO7, A0
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