“An Actual Photo, not a Rendering…”
Jan12

“An Actual Photo, not a Rendering…”

I’m quoting Elon Musk today where he tweeted “This is an actual photo, not a rendering.” His Starship is really cool (up to 100 passengers?), but so is this – and as real as it gets. The new SoulPedal® enclosure for the Controller fits perfectly. Loving the recessed letters in blue to match the modded blue stripes on the knobs. The box master was precision printed and buffed out for the mold. And yup, that’s an Expression out 10K pot to control other pedals.   After hooking up with another Beta Tester in Phoenix, I’m getting the sense that musicians don’t fit the “average size 8” shoe norm – more like size 11. So moving on now to multi-size pedals. Notice the old Makerbot 3D printer in the background. The pedals don’t need to be so precise, just comfy and flexible so I’ll do these myself for now with materials on hand. All I can say is good things take time. On the right side, I’m not quite sure what this one plug is going to do just yet, so I called it “Other.”  You know, when people say, “No, it’s the other plug.” Well now there’s officially an “Other” plug. It literally has endless possibilities!       All the top knobs are about feel in the shoe… exactly how foot pressure translates to control. And of course, MIDI Out is still there and was combined with External Control to run my Boss Delay as an example.         And guess what the Pad does. If you just barely tap it, for now, it’s how we switch between MIDI/EXT, WAH, or VOLUME. Like I said… for now. Nice colors for each mode too.        ...

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Nice Volume Control Demo
Oct16

Nice Volume Control Demo

The video says it all. This is all part of combining the Wah and MIDI controller into a single unit with the new Volume and Expression out. So far so good! (Xanadu by Rush was a song I played since I was a young kid in Canada. Great song!) Stay Tuned,...

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Controlling a Boss DD-7 Delay Pedal
Jun19

Controlling a Boss DD-7 Delay Pedal

I don’t know why we didn’t think of this sooner… Here’s a hack that emulates an EV-5 Roland Expression Pedal. Just needs a stereo jack output that connects right up to any Boss Expression Input (or Roland product of course). Not only that, but our controller already has a minimum level adjustment like the EV-5. We might want to figure out a simple way to set and hold the pedal, and have previously tested using a quick twist of the foot (using the Z-gyro sensor in the pedal)… add that to the code To-Do list. Shown is a close up of the wire I soldered to a tiny BROKEN lead off the Digital Pot… as in no lead, just a stub! Obviously it would be a clean connection off the second channel of the chip, but I can’t believe it stayed long enough to test this (why all the tape to hold it). The first channel of course controls the Wah effect. And I might either put in some jumpers to let this be a volume swell, or just create a separate box to simply patch through the audio as a volume...

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Fast, Smooth, and Quiet – SoulPedal
Apr06

Fast, Smooth, and Quiet – SoulPedal

Is it possible to fall in love with a circuit? I did! Smoother: Opto-Isolator LED is now controlled by Current not Voltage (duh). Naturally responsive now. Quicker: No LED turn-on time (biased on both ends to exactly match LED useful range). Force Sensor in the pedal was selected – Easily replaceable, and High Z for even better battery life. Eliminated Digital Noise feeding back into the DC supply (was OK before but needed isolated supplies). Take a close look at that Wah board. That’s the one I’ve been tweaking the past month and planning to replace very soon. (The controller is still good with 15 built to 75%, and the Pedal PCB is OK but the insole design in your shoe will change.) The analog components are nostalgic using Panasonic Caps and a Red Fasel coil from Italy for that original sound. Right in the center is your automated DPDT switch. That’s what kicks in/out the effect (so to speak) for True Bypass. I used a COTO Reed Relay and I’ve never ever had one wear or degrade on me (sealed switch in an inert gas). Upper left corner are all the caps for the overall tone range. Thanks to Anderton articles on DIYstompBoxes.com, A. G. Keen, and Geofex.com for getting me up to speed over the years. I have no idea who you are, but thanks! I’m sure some of your parts are in these first units. Truth is, I’m finishing 15 units that were on hold for 2 yrs. If you saw Silicon Valley this week, well… I’m Richard. I’m targeting some Beta Testers this summer, 2018. I may never build any more of this design and it will be a while before the Bluetooth version would be even started, but that’s the plan. My partner is still waiting for cash-flow. That’s not the goal anymore (taken from the Musk playbook). I’m not advertising, but you might see me soon at a Guitar Center. I’ll try to get that on video. Oh, and besides MIDI out and Data Out (for Arduino), if all goes well I’ll add Expression Out. That’s a tricky one so I might just give you 3 wires and a guide. It’ll be a 10K pot controlled in parallel with the Wah, used to control your own Wah circuit or your best Stage Show thingy. I’ve always imagined Slash controlling his Wah AND a giant puppet of himself grooving in unison. I’ll get there, watch. I’ve had the vision ever since I saw Fergie and Slash stuck in one spot on stage (Superbowl halftime years ago). Everyone was dancing all around him, but he was...

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Look, No Cables!
Mar09

Look, No Cables!

Since not everyone lives in Sandals like myself, I thought I’d pick up a pair a Chuck Taylor All Stars for a SoulPedal(R) test drive. Look, no Cables! (Referring to the experiment at Converse a few years back with a Wah.) I went for Size 11 US as I’m about a 10.5 US and I wanted some room in case (truth is, they were on sale at Ross for $29). At first, I didn’t like being able to feel the edge of my pedal under the toes so I pulled off the neoprene cover and cut out a full size for replacement. Way better, and my brother also found it comfy. There’s a lot to resolve here still, but getting there. During the fun, careful inspection of the pressure sensor showed no visible signs of wear, but I’m not tracking the ohms Ω/gram data over time… shear is a killer there. Good news is that the flex portion of the pressure sensor isn’t failing like before. I lowered the path more toward Center-line of the bend action. (Maybe...

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Can you believe I’m going to try again?
Feb06

Can you believe I’m going to try again?

Hope to dust off the old pedal and demo at the STEM http://www.southwestmakerfest.com in a couple weeks. Got some new flex cables today, so was able to load new code again. Gotta get the basic Wah working for now. Gyro calibration is tricky… they gyrate no matter what. Stay tuned...

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