ER-LEDS

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ER-LEDS P1080999-720px.jpg

Features[edit]

  • 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[edit]

2014-05-14T23 52 48.894Z-2-720px.jpg

Software[edit]

ER_LEDS.ino - Software Build

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

Build[edit]

  • 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

ER LEDS P1090003 720PX.jpg

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

ER-LEDS P1090004 720PX.jpg