Step 2: Planning the Trigger

Some similar projects trigger a sensor with the beater itself - either with an embedded magnet or piezoelectric sensor. But this requires you to built a pad for your beater to hit (or convert a bass practice pad). This has a couple disadvantages. For one, to use the pedal with a real kit, you have to disassemble this pad, and add it again to play the video game. Also, if you're building the pad, you need to make something sturdy enough to take a lot of abuse without losing its alignment.

I decided it was much simpler all around to mount the trigger under the pedal (similar to the Rock Band design).
<p>I just tried doing this for the XB1 version of Rock Band 4. Unfortunately what's happening is the game recognizes the pedal as being &quot;pressed&quot; 100% of the time as soon as the switch is connected. I haven't even applied any magnets yet. What might I have done to cause this?</p>
<p>Did you get a NO (Normally Open) reed switch? </p>
<p>Follow up! First thanks guys for the responses. Diego that's what I assumed at first. Before I gave up though I tried removing the heat shrink tubing for more direct contact with the magnets. Sure enough that got it to behave properly!</p><p>So it &quot;works&quot; technically... problem is it's causing my wireless drum kit to sporadically disconnect. Like it turns off completely 5 or 6 times in the course of a single song, so it's still not in a playable state. Happens with fresh batteries, too. I verified by playing with the stock pedal immediately afterwards and had 0 disconnects. Not sure if this is a power consumption issue or something specific about the new kits they made for RB4 on XB1. Regardless I'm at a road block again. :(</p>
<p>I had the exact same problem as you (sporadically disconnecting). Turns out, static discharges into the pedal may cause the drum set to disconnect. In my case, I had parts of the reed circuit in physical contact with a metal part of the pedal. I properly isolated my circuit from the pedal and have had zero disconnects since.</p>
<p>Offhand I agree with where DiegoS49 is going. Sounds like you might have wired up a normally closed switch. A normally open switch will complete the circuit only near a magnet - which *should* be when a hit is registered.</p>
I made my own pedal about 10 months ago also, and it is actually almost exactly like yours. I even made an instructable too lol
That's damn cool! I really want to get the ION drum kit, but it's too expensive for me right now. THis is the next best thing. That's the one gripe I have with the drums is that the kick is not sensitive enough and it feels cheap. Now all you need to do is get a double kick setup for those really tough songs! All you would need is a 1/8" mono Y splitter and another kick pedal setup just like this one! Kudos!
Trouble with that - is its not a piezo like in guitar hero - its a switch, so hitting one switch would prevent the other from hitting, you'd need to have your foot 'up' on one for the other to hit, and the second wouldnt register if the first was down. On fast rolls where you keep the pedal low to the ground, it could have a lot of misses.
Any ideas on how to remedy that? I really want a 2nd pedal but if it doesn't work like it should then I wouldn't bother. Unless there was a better way.
Yeah a simple splitter won't work like frollard said. You need to add an extra circuit to convert your foot press to a pulse instead on a constant closure. I plan to add this eventually, but in the meantime you can check out: <a rel="nofollow" href="http://imakeprojects.com/Projects/rock-band-dual-bass-drums-controller/">http://imakeprojects.com/Projects/rock-band-dual-bass-drums-controller/</a><br/>
Thanks for the link! That is EXACTLY what I was searching for. I will begin gathering the parts.
By the way, this works perfect on Playstation 3 in addition to Xbox, just in case anyone was wondering. Haven't had a chance to see the Wii kit.
Instead of using a relay couldn't you just use a pushbutton switch?
Absolutely! But depending on the switch it may not hold up for long against the constant stomping. The nice thing about the reed switch is that there's no physical contact.
Yeah, the stock controller uses a reed - and if you have a broken pedal - *(excepting like my friend, with a broken reed switch) you could add the components to a real pedal :D

About This Instructable




Bio: Web developer by day. Gamer by night. Halloween fanatic and DIYer, all the time! My projects tend to combine pop culture, technology, and craftsmanship to ... More »
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