Dragonkitty’s Dragon Dinghy — The Ultimate I/O Expansion board

Dragonkitty’s Dragon Dinghy — The Ultimate I/O Expansion for Your 3D Printer Smooth sailing for sensors, fans, and RGBs alike. The Dragon Dinghy is a rugged and versatile I/O expansion board designed to supercharge your 3D printer’s thermal management, fan control, and lighting with seamless Klipper integration. Whether you’re upgrading a custom build or enhancing a multi-extruder beast, this compact powerhouse gives you the inputs and outputs you didn’t know you needed. Key Specifications ✓ Thermistor Inputs (9 total) 5 inputs for 100k NTC thermistors (e.g. Generic 3950, ATC Semitec) 4 inputs optimized for PT1000 sensors All protected against accidental shorts up to 24V ✓ Fan Outputs (4 total) 2x 3-pin fan connectors, up to 1A each (optional: Tach support) 2x 4-pin fan connectors, up to 2A each (GND-switched PWM & optional Tach support) Supports 5V, 12V, or 24V fans natively ✓ RGB Lighting (4 channels) Compatible with WS2812B, SK6812, Neopixel strips Onboard SK6812 diagnost