RGB Eyes

Link: https://youtu.be/wvMHZ1NPT24

This Roll-out Video includes:

  1. Feature set
  2. Hook-up guide
  3. Using ARC Skill
  4. Schematic overview
  5. Bill of Materials (BOM) overview
  6. Custom firmware location
  7. Assembly instructions
The RGB Eyes reference design consists of a pair of 3 x 3 RGB LED matrices can be controlled be easily controlled by ARC to display robot animations and emotions. A unique feature of this display is that it uses a on-board microcontroller to PWM drive all the LEDs which uses a low amount of current. We want to share these files with you so you can create your own!


  • I2C communication
  • Adjustable I2C address for chaining multiple displays
  • Programming header
  • 5V tolerant I/O pins
  • ARC skill available
  • Voltage requirement: 3.2-3.4VDC (3.3V Typical)
  • Current draw: All LEDs off - 6mA, All Blue - 8.4mA, All Green - 8.2mA, All Red - 12mA, All White - 14.6mA
  • Dimensions: 65.8(W) x 33(L) x 9.4(H) (mm)
  • Weight: 8g

  • Major Components

  • PIC16F1937 8-bit PIC microcontroller (custom firmware provided)
  • PLCC4RGBCT-CA RGB LED 3528 Common Anode

  • Manufacturing Notes

  • Supplier: programs custom firmware into the PIC16F1937 at their facility before sending to manufacturer
  • Manufacturer: Single side placement and soldering of SMT components
  • Manufacturer: Single Side soldering of THT components

  • Resources

    Documentation: Schematic PDF, Datasheet PDF, BOM, Test Procedures

    Hardware: Altium PCB design File, Altium SCH Design File, Gerbers

    Firmware: Code, Compiled Hex

    Altium Libraries are also available here


    ARC Skill

    The ARC RGB Animator skill is very easy to use. Create shapes, patterns, emotions, and animations with the simple click of a mouse button or with code!

    Link: https://synthiam.com/Software/Manual/RGB-Animator-16079

    Where to Buy

    EZ-Robot has their products on their website store for purchase, as well as many other online and offline retail stores. Here's links to the EZ-B v4 products directly at EZ-Robot's store:

  • RGB Eyes