BinKey

fadecandy-usb-neopixel-driver

4 min read

Important Note

This entire repo was AI created - including all of the data within. The intent was to A) help me with my personal electronics inventory; and B) see how I could use AI to make that process a bit easier. DO NOT TRUST!

FadeCandy - Dithering USB-Controlled Driver for RGB NeoPixels

Details

  • Location: Cabinet-1, Bin 28
  • Category: Microcontroller Boards
  • Type: USB LED Controller
  • Brand: Adafruit (collaboration with Scanlime)
  • Part Number: 1689
  • Quantity: 1
  • Product URL: https://www.adafruit.com/product/1689

Description

USB-controlled LED driver featuring advanced dithering and color correction algorithms for high-quality LED art projects. Designed by Micah Scott (Scanlime) in collaboration with Adafruit, FadeCandy provides professional-grade LED control with built-in temporal dithering, gamma correction, and smooth color transitions. Perfect for art installations requiring subtle, high-quality lighting effects.

Specifications

  • Part Number: 1689
  • Maximum LEDs: 512 total (8 channels × 64 LEDs each)
  • LED Channels: 8 independent outputs
  • LEDs per Channel: Up to 64 LEDs
  • Dimensions: 20mm × 38mm
  • Weight: 4 grams
  • Interface: USB 2.0 Full Speed
  • Protocol: Open Pixel Control (OPC)

Image

FadeCandy USB-Controlled Driver for RGB NeoPixels

Features

  • Advanced Dithering: Temporal dithering for smooth color gradients
  • Color Correction: Built-in gamma correction and color temperature adjustment
  • High Quality: Professional-grade LED control algorithms
  • USB Interface: Simple USB connection to computer
  • Open Pixel Control: Standard protocol for LED art projects
  • Multi-Platform: Works with Windows, Mac, Linux, Raspberry Pi
  • Real-Time: Low-latency LED updates for responsive effects

LED Support

  • WS2811: Original addressable LED protocol
  • WS2812/WS2812B: Standard NeoPixel LEDs
  • Compatible: Works with most WS281x-based LED strips
  • Not Compatible: RGBW NeoPixels (RGB only)

Software Ecosystem

  • FadeCandy Server: Cross-platform server software
  • Open Pixel Control: Simple network protocol for LED data
  • Python Libraries: Easy integration with Python projects
  • Processing Support: Works with Processing creative coding environment
  • JavaScript: Browser-based LED control capabilities
  • Max/MSP: Integration with Max for Live and Max/MSP

Technical Features

  • Temporal Dithering: Smooth color transitions without banding
  • Gamma Correction: Perceptually linear brightness control
  • Color Temperature: Adjustable white point correction
  • Interpolation: Smooth transitions between colors
  • Error Diffusion: Advanced dithering algorithms
  • Low Latency: Optimized for real-time applications

Hardware Details

  • USB Power: Powered directly from USB port
  • LED Power: LEDs require separate 5V power supply
  • Connections: Screw terminals or pin headers (not included)
  • Isolation: USB-isolated design for safety
  • Compact: Small form factor for embedded installations

Programming & Control

  • FadeCandy Server: Receives OPC data and controls hardware
  • Network Protocol: TCP/IP based Open Pixel Control
  • Multiple Clients: Multiple programs can connect simultaneously
  • Language Support: Python, Processing, JavaScript, C++, Max/MSP
  • Examples: Extensive example code and tutorials available

Applications

  • Art Installations: Museum and gallery LED art pieces
  • Architectural Lighting: Building and structure illumination
  • Stage Design: Theater and concert LED effects
  • Interactive Displays: Sensor-responsive LED installations
  • Prototyping: LED effect development and testing
  • Education: Teaching LED control and color theory

Advantages

  • Professional Quality: Superior color rendering and smoothness
  • Easy Integration: Simple network protocol
  • Cross-Platform: Works on any computer with USB
  • Battle Tested: Used in major art installations
  • Open Source: Hardware and software are open source
  • Community: Active community and extensive documentation

Kit Contents

  • FadeCandy controller board
  • Documentation and quick start guide
  • Headers not included (available separately)

Connection Requirements

  • Headers: Dual pin headers needed for connections (sold separately)
  • Power: Separate 5V power supply required for LEDs
  • USB Cable: Standard USB A to Mini-B cable
  • LEDs: Compatible WS2811/WS2812 LED strips or modules

Performance

  • Update Rate: Up to 400 Hz refresh rate
  • Latency: Low latency for real-time applications
  • Smoothness: Temporal dithering eliminates color banding
  • Precision: 16-bit internal color processing
  • Stability: Robust USB communication

Notes

  • Discontinued: No longer in production by Adafruit
  • Legacy Support: Software and documentation still available
  • Headers Required: Soldering required to attach connection headers
  • Power Considerations: LEDs need adequate 5V power supply
  • RGB Only: Does not support RGBW NeoPixels
  • Open Source: Hardware designs and firmware available on GitHub

Historical Significance

  • Collaboration between Adafruit and Micah Scott (Scanlime)
  • Used in the Ardent Mobile Cloud Platform at Burning Man
  • Pioneered high-quality LED control techniques
  • Influenced modern LED controller design
  • Part of the Open Pixel Control ecosystem

Graph View

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