Some impedance or whatever nick chelyapov with bitty

Circuit Break Podcast #176

Some Impedance or Whatever – Nick Chelyapov with Bitty

Related Topics
Timing Tariff Modulations

We delve into the fascinating world of time modulation, discussing recent advancements in capacitor technology.

The Toilet Mountain of Social Media

The hefty topic of U.S. funding for 'digital twin' chips research under the CHIPS Act, comparing its budget to other big expenditures.

The Magic Touch Is Money

We explore the implications of Apple’s business practices on innovation, consumer choice, and market competition.

Other Resources

Circuit Break Podcast
eBooks & Guides
Case Studies
Tour MacroFab's ITAR-Compliant Facility

June 12, 2019, Episode #176

Nick Chelyapov joins Parker and Stephen to get nitty gritty with the Bitty, the pocket drum machine.

Nick Chelyapov

  • A freelance Interactive Art Director and Graphic Designer
  • Born in Moscow, Russia and raised in Los Angeles, California
  • Nick has worked on a wide variety of art direction and graphic design projects
  • Nick started Bitty, a pocket drum machine, 3 and a half years ago
  • “I think the edge that I have to bring to a hardware product is graphic design”

What is the bitty?

  • Kickstarter project
  • A pocket drum machine
  • Specs on Bitty
    • Sine / square / saw / triangle waves (it’s all there, noise too.)
    • Sample playback – 16khz samples
    • Polyphony – 4 voices is easy, depending on the complexity of the patch, 8-16 voices is possible
    • Filters – Low Pass, High Pass, Band Pass, Notch
    • Patterns / Arpeggiation

How did you get into hardware design from graphic design?

  • Product look and feel
  • Process of iterations? What do you look for in the design?

Links and Callouts

Visit our Public Slack Channel and join the conversation in between episodes!

Nick Chelyapov of Curious Sound Objects and Bitty.

Nick Chelyapov of Curious Sound Objects and Bitty.

The Bitty pocket drum machine.

The Bitty pocket drum machine.

Illustration of the Bitty pocket drum machine labeling the functionality of the buttons and knobs.

Illustration of the Bitty pocket drum machine labeling the functionality of the buttons and knobs.

Owen Trueblood on the left did the first PCB design of the Bitty. Gavin Lund on the right working on the latest version of the Bitty.

Owen Trueblood on the left did the first PCB design of the Bitty. Gavin Lund on the right working on the latest version of the Bitty.

About the Hosts

Parker Dillmann
  Parker Dillmann

Parker is an Electrical Engineer with backgrounds in Embedded System Design and Digital Signal Processing. He got his start in 2005 by hacking Nintendo consoles into portable gaming units. The following year he designed and produced an Atari 2600 video mod to allow the Atari to display a crisp, RF fuzz free picture on newer TVs. Over a thousand Atari video mods where produced by Parker from 2006 to 2011 and the mod is still made by other enthusiasts in the Atari community.

In 2006, Parker enrolled at The University of Texas at Austin as a Petroleum Engineer. After realizing electronics was his passion he switched majors in 2007 to Electrical and Computer Engineering. Following his previous background in making the Atari 2600 video mod, Parker decided to take more board layout classes and circuit design classes. Other areas of study include robotics, microcontroller theory and design, FPGA development with VHDL and Verilog, and image and signal processing with DSPs. In 2010, Parker won a Ti sponsored Launchpad programming and design contest that was held by the IEEE CS chapter at the University. Parker graduated with a BS in Electrical and Computer Engineering in the Spring of 2012.

In the Summer of 2012, Parker was hired on as an Electrical Engineer at Dynamic Perception to design and prototype new electronic products. Here, Parker learned about full product development cycles and honed his board layout skills. Seeing the difficulties in managing operations and FCC/CE compliance testing, Parker thought there had to be a better way for small electronic companies to get their product out in customer's hands.

Parker also runs the blog,, where he posts his personal projects, technical guides, and appnotes about board layout design and components.

Stephen Kraig
  Stephen Kraig

Stephen Kraig is a component engineer working in the aerospace industry. He has applied his electrical engineering knowledge in a variety of contexts previously, including oil and gas, contract manufacturing, audio electronic repair, and synthesizer design. A graduate of Texas A&M, Stephen has lived his adult life in the Houston, TX, and Denver, CO, areas.

Stephen has never said no to a project. From building guitar amps (starting when he was 17) to designing and building his own CNC table to fine-tuning the mineral composition of the water he uses to brew beer, he thrives on testing, experimentation, and problem-solving. Tune into the podcast to learn more about the wacky stuff Stephen gets up to.

Special thanks to whixr over at Tymkrs for the intro and outro!