ER-LEDS

Features

• 3U 6HP Eurorack card
• Arduino Pro Mini CPU
  • 16 MHz
  • 5V
• Drives recessed NeoPixel strip in top of Eurorack box
• Daughtercard to ER-PROTO-02 card
  • Uses Front Panel and Controls card
• Controls
  • RV1 = Mode knob
    • 4 modes: 3 rainbow, 1 white
  • RV2 = brightness
• GATE input could be used to step between rainbow pattern
• LED strip types (Ebay search)
  • Using 30 LEDs per 1 M
  • Other options are 60 LEDs/M or 144 LEDs/M
• 16 pin (8x2) box power connector
  • Requires 5V at current depending on the number of LEDs
  • From Powering NeoPixels Adafruit page
    • Each individual NeoPixel draws up to 60 milliamps at maximum brightness white (red + green + blue)
  • 17 LEDs (30 LEDs/M) in 104 HP rack = 1A

Arduino Pro Mini

Software

ER_LEDS.ino - Software Build

• RV1 - Pattern
  • White
  • Color
• RV2 - Brightness

Build

• 1000 uF cap on 5V power
• RV1, RV2 jumpers on controls card for Vcc/GND
  • Vcc is 5V from daughtercard
• Series resistor on Data Output line

• GVS (Ground, Vcc, NeoPixel data line) on 1x3 header
• Arduino uses +12V into "RAW" pin of Arduino Pro Mini