NeoPixel RGB LED Strip (External Power)

Overview

This tutorial will teach you how to use the External Power Satellite board while implementing a NeoPixel RGB LED Strip.

Components

Arduino + power and usb connectors
Museduino Shield
Museduino External Power board
CAT5/RJ45 cable
NeoPixel RGB LED Strip
Switching Power Supply
Female DC Power adapter

Setup

For detailed information getting started with Neopixels, please review the Adafruit NeoPixel Uberguide. The NeoPixel LED Strip requires a power supply with a minimum of 3.6 Amps. For this tutorial, we recommend using the External Power satellite board and a 5V DC Switching Power Supply which can handle up to 10 amps.

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Take a look at the The External Power satellite board. Notice that the board is equipped with 3 External Power jumpers which allow you to switch from 5V to 6-12V. When external power is in use, the red LED indicating 6-12V will be on.

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To setup our NeoPixel Strip, connect its wires to satellite pin 5 on the External Power board. The strip has four wires; power (red), signal (white), and two grounds (black).

2.0_pinchart

Based on the Satellite pin configuration, you will use terminal block pins 1, 3, and 4. A small screwdriver is needed to close the screw terminals.

pinconfig

Next, use the external power jumper directly across from satellite pin 5 to switch to external power.

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In order to use the Switching Power Supply, connect the Female DC Power adapter to the two pin terminal block. Use male-to-male jumper wires or wire strippers to make your own.

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Plugin your Switching Power Supply to the Female DC Power adapter.

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Via CAT5 cable, connect the External Power satellite power board to Port A. Then connect your Arduino via usb to upload the program to control the NeoPixel strip.

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Code

Download the Adafruit_NeoPixel library. For this tutorial, upload the strandtest sketch to your Arduino. This sketch uses Arduino digital pin 6 which you setup earlier in this tutorial (Satellite Pin 5 on Port A).

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extpow

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