Gravity: I2C RGB LED Colourful Button Module

DFRobotSKU: DFR0991
Sale price £8.25
incl. VAT
excl. VAT
Only 5 units left

Awesome Extras

DFRobotGravity: Digital 5A Relay Module
Sale price £2.08 incl. VAT excl. VAT
DFRobotGravity: 8-Digital LED Segment Display Module
Sale price £4.75 incl. VAT excl. VAT
DFRobotGravity: IO Expansion Shield for Arduino V7.1
Sale price £7.08 incl. VAT excl. VAT

This is an I2C button module with RGB LED. The module not only supports reading button status like conventional ones, but also controls RGB LED colour and switching on/off the light independently, which could create more visual and interactive experiences for your projects. For example, when the system prompts users to press the button, the RGB light blinks in green; when the button is pressed, the light turns red.

This module has an onboard 3-bit DIP switch for setting 8 different I2C addresses, which means up to 8 such button modules can be cascaded together without occupying additional ports.


  • High-quality button, mechanical keyboard-like tactile feedback
  • Soft and even colour light
  • Independent control of RGB LED, eight I2C addresses can be set
  • Double I2C ports for simple cascade
  • On-board interrupt interface for highly real-time tasks


  • Adjustable Color Range: R: 0-255, G: 0-255, B: 0-255
  • Maximum Cascading Modules: 8
  • Operating Voltage: DC 3.3V-5V
  • Button Travel Distance: 2.2±0.2mm
  • Button Life: 200,000 continuous presses
  • Interrupt Mode: the interrupt interface outputs HIGH when the button is pressed
  • Communication: I2C
  • Connector: PH2.0-4P (Gravity standard), 2.54-5P pin header
  • Dimensions: 37mm×32mm×19.5mm/1.46×1.26×0.77"



Pin Full Name Description
D SDA I2C Data Line
C SCL I2C Clock Line
+ VCC Positive Power Supply (DC 3.3V~5V)
- GND Negative Power Supply
INT Interrupt External Interrupt

Package Contents

  • 1x Gravity: I2C RGB LED Button Module
  • 1x Gravity-4P I2C/UART Sensor Cable

Payment & Accreditations

Payment methods
Amazon American Express Maestro Mastercard PayPal Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.