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I²C Expansion Port for Arduino Uno Platform


  • +5V I²C Expansion for Arduino
  • Integrated 4.7K I²C Pull-Up Resistors
  • No Need of soldering. Plug and Play Device
  • Quick and Easy Daisy-chained Device
  • Non-Invasive Pass-Through Design
  • May be Sandwiched between Other Shields

4 in stock

Product Description

Arduino Uno Shield  I2CAS1 is a +5V I²C Expansion Shield

This shield acts as a gateway to the entire dcubestore.com I²C product line, allowing limitless expansion possibilities. This shield could be the single most significant shield for your Arduio ever made simply because of it’s extreme low cost and broad expansion possibilities.

Integrated 4.7K pull-up resistors make it an ideal I²C master device. Pass-though design allows you to non-invasively sandwich this shield between other Arduino shields without sacrificing compatibility or expandability. This I²C expansion port is compatible with our entire range of I²C devices, including relay controller, sensors, and various mini modules, making expansion of the Arduino quick and easy, regardless of your application requirements.


This adapter provides a general-purpose I²C port, compatible with our complete line of I2C devices.  Control relays, monitor current, read just about any kind of sensor you can imagine.




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