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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Introducing Soul Pedal Blog
Mar13

Introducing Soul Pedal Blog

We are gearing up to build wireless controllers as a comfortable insole for your shoe. Arduino compatible, includes MIDI and Effects Pedals! Come meet the team and experience Soul Pedal for yourself at the Tempe Guitar Show on March 22nd.  ...

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