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@ -7,14 +7,13 @@ tags:
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My project this winter break is to get our Wii copy of LEGO Rock Band some controllers again. We sold the original ones years ago because they were gigantic, so any replacements need to be small and easily stored.
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## Step 1: Working Arduino controller
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## Step one: Working Arduino controller
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Before any other work, I needed to make sure I could actually interface with the software.
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Currently, the "santroller" is very popular:
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it requires some kind of binary desktop app to configure the firmware,
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and although it's open source software,
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it's thousands of lines of code.
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There's one really popular project
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right now,
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with published source code,
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but it requires some binary desktop app to configure the firmware.
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I had a hunch I could find something simpler,
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and after a day of searching,
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I discovered
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@ -22,10 +21,11 @@ I discovered
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doing exactly what I wanted.
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Following the instructions on that page,
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I was able to get my old Arduino Micro
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recognized as a guitar.
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By awkwardly grounding input pins with a wire,
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I was able to slowly navigate the menus,
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and I even managed to fail a song.
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recognized as a guitar,
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and utterly fail a level as
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I attempted to ground the right pins
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with a bit of wire
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to register button presses.
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I used an old 4-port USB hub
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I had lying around,
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@ -54,31 +54,18 @@ I already had M3 screws,
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which are used all the time in
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3D printed builds.
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Total cost of parts for two controllers,
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not counting 3D printed parts,
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is about $40.
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## Drum controller
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## Step 3: Drum controller
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The first decision to make was
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finger drumming vs hitting things
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with sticks: we decided sticks
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would be more fun.
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There are a lot of options that could work as a drum controller,
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including "finger drums" like the Akai MPD218,
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full drum kits like the Alesis Nitro Mesh,
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drum pads like the Alesis SamplePad,
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or options to build my own kit with piezos.
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A few factors went into the decision:
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1. We wanted something you hit with sticks.
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Hitting things with sticks requires big movements,
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which will result in funnier situations during the game.
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2. We wanted something that was easy to hook up.
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The devices with MIDI output would require at least a translation device,
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the USB MIDI devices would need the translation device to plug into power.
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If possible, we want the "rock bands drums" to just plug in to the hub,
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and that's all.
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3. Since nobody's built anything like this before,
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we wanted to start cheap.
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The second decision was
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MIDI vs destructive conversion.
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Conversion looked cheaper and easier,
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so we went that way.
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I wound up buying a $26 children's
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roll up drum mat.
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