Member Since: July 5, 2011

Country: United States



Electrical engineer

Programming Languages

Python, C/C++


NDSU 1997-2002


Toys, tinkering



We've made a "Stranger Things"-inspired message wall for your viewing (and tweeting!) pleasure.

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The long SparkFun tradition of mild sadism in the name of comedy continues!

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For decades, the 555 timer has been a mainstay of hobbyist electronics. Is it time to retire this venerable little workhorse?

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Some notes (and examples) to help you understand a bit more about the world of digital imaging.

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The FreeSoC2 board is a great way to start using the incredibly powerful PSoC5LP processor line from Cypress Semiconductor.

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As an engineer at SparkFun, I make a lot of temporary projects. The Magic Lunchbox helps me take them home to work on without damaging them.

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Ever wonder how the Arduino IDE translates your code into instructions for the processor?

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Radio Shack is finally declaring bankruptcy, but for many of us, it died a long, long time ago

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FTDI's latest driver update appears to be semi-permanently disabling counterfeit FT232 chips.

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To compare the Edison and the Raspberry Pi is to do a disservice to both.

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In which I buy a cheap truck, planning on using my hacking skills to keep it going, and the universe calls my bluff

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When in New York, I found a small group of hackers in as surprising place

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Quad Fever!

Quadcopter fever is spreading through SparkFun! Of course we're going to hack them.

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How Python makes my life easier every day

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Technological befuddlements it took me 10 years and a college degree to understand.

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Getting Started with the AutoDriver - v13

September 15, 2016

SparkFun's AutoDriver is a powerful tool for controlling stepper motors. Here's how to use it.

PicoBuck Hookup Guide V12

February 18, 2016

The PicoBuck board is a high-efficiency three-channel constant-current LED driver.

Simblee Concepts

February 4, 2016

The Simblee module is a powerful but easy to use Bluetooth 4.0 device which allows you to create a GUI from directly within your Arduino code!

Simblee LilyPad Hookup Guide

February 4, 2016

The Simblee LilyPad lets you easily integrate Bluetooth Low Energy and mobile apps into your e-textiles projects.

Simblee Breakout Board Hookup Guide

February 4, 2016

This guide will help you understand your SparkFun Simblee Breakout Board.

FemtoBuck Constant Current LED Driver Hookup Guide V12

December 10, 2015

The FemtoBuck board is a high-efficiency, single-channel constant-current LED driver.

SparkFun Blocks for Intel® Edison - 9 Degrees of Freedom Block

August 19, 2015

A quick overview of the features of the 9 Degrees of Freedom Block.

SparkFun Blocks for Intel® Edison - Dual H-Bridge

July 17, 2015

A quick overview of the features of the Dual H-bridge Block.

SparkFun Blocks for Intel® Edison - PWM

June 22, 2015

A quick overview of the features of the PWM Block.

Experiment Guide for RedBot with Shadow Chassis

May 28, 2015

This Experiment Guide offers nine experiments to get you started with the SparkFun RedBot. This guide is designed for those familiar with our SparkFun Inventors Kit and want to take their robotics knowledge to the next level.

Assembly Guide for RedBot with Shadow Chassis

May 28, 2015

Assembly Guide for the RedBot Kit. This tutorial includes extra parts to follow to go along with the RedBot Inventor's Kit tutorial.

FreeSoC2 Introduction

May 14, 2015

The FreeSoC2 is an Arduino-compatible PSoC5LP-based development board, produced by SparkFun in collaboration with Jon Moeller (developer of the original FreeSoC) and Cypress Semiconductor.

Wake-on-Shake Hookup Guide

March 13, 2015

A basic hookup guide for getting started with the SparkFun Wake-on-Shake.

BC118 BLE Mate 2 Hookup Guide

January 15, 2015

Hooking up and using the BLE Mate 2, which uses the BC118 BLE module from BlueCreations.

Programming the Intel® Edison: Beyond the Arduino IDE

January 7, 2015

Intel's Edison module goes beyond being just another Arduino clone. Check this tutorial for advice on how to get the most out of your Edison by writing code in C++!

Sunny Buddy Solar Charger V13 Hookup Guide

October 13, 2014

How to hookup the Sunny Buddy: a solar-powered, MPPT (peak-power tracking), LiPo battery charger.

FTDI SmartBasic Hookup Guide

October 3, 2014

How to use an FTDI SmartBasic Board to program an Arduino and access another serial device over the hardware serial port, without unplugging anything!

MiniGen Hookup Guide

May 22, 2014

Using the MiniGen, SparkFun's Arduino Pro Mini signal generator shield

Understanding the BC127 Bluetooth Module

January 31, 2014

SparkFun has two boards using the BC127; here's what you need to know to use them.

Digital Logic

October 3, 2013

A primer on digital logic concepts in hardware and software.

MiniMoto DRV8830 Hookup Guide

September 19, 2013

MiniMoto is an I2C-based low-voltage DC motor driver.

Using GitHub to Share with SparkFun

August 19, 2013

A simple step-by-step tutorial to help you download files from SparkFun's GitHub site, make changes, and share the changes with SparkFun.


July 8, 2013

An introduction to I2C, one of the main embedded communications protocols in use today.

Leap Motion Teardown

June 27, 2013

Let's see what's inside the amazing new Leap Motion input device!

Programming the pcDuino

March 12, 2013

With great power comes great complexity. This tutorial will teach you some of the basic concepts needed to get the most out of programming your pcDuino.

pcDuino Hookup Guide

March 8, 2013

pcDuino is SparkFun's single-board hardware-hacker based mini PC. It comes with Linux pre-installed, has all the hardware functionality of an Arduino Uno, and can be programmed almost as easily as an Arduino!


February 7, 2013

Light is a useful tool for the electrical engineer. Understanding how light relates to electronics is a fundamental skill for many projects.

Connector Basics

January 18, 2013

Connectors are a major source of confusion for people just beginning electronics. The number of different options, terms, and names of connectors can make selecting one, or finding the one you need, daunting. This article will help you get a jump on the world of connectors.
  • Arduino boards take a noteable amount of time to boot before executing a command. Is it possible that somehow in that time, your board is rebooting? Disconnecting the USB, or connecting it, causes the board to reboot.

  • I used short lengths of USB cable for power and data, then broke the sockets off a string of lights, emptied the sockets, and glued the glass from a broken lamp to each socket. I then inserted the LED into the bottom of the socket. It was, to put it mildly, a LOT of work.

    I did spend some time trying to figure out how to use the existing wires, but in the end I decided it would be easier to replace the wires. it took probably about 16 hours to make all the lamps.

  • No, it will not work for the V2 chassis.

  • The three units on the PicoBuck are isolated, but cutting them apart probably won’t work, because the data and power pins aren’t separated on a per-channel basis. You won’t get your full 3W out of the LEDs with either of them; depending on the forward voltage, you’ll probably only get 1-2W.

  • Apologies; we’ll get that fixed.

  • We’ve deactivated the webcam. You can watch the existing stream above and scroll around to see tweets on the sidebar, but in the end, we decided that keeping the project up and running isn’t something we have time to spend on.

    I’ll update the blog post text to reflect that.

  • I’m afraid I don’t have an answer for that. I suspect multiple devices can connect at once, however, but you wouldn’t be able to stream multipoint audio. That’s just an educated guess.

    EDIT: If you go to the BC127 product webpage they mention multiple connections as a feature. So clearly, it’s possible; it may require a firmware upgrade, however.

  • it can be done but not with iOS. iOS doesn’t support serial port protocol. if you’re writing your own app, you can do it via BLE, but it’s not for the faint of heart.

  • What’s the open-circuit voltage, with no battery attached? That should be pretty close to 4.05V. If it’s not, you probably have a bad battery that’s dragging the voltage down. 2.1V is way low for even a depleted LiPo cell.

  • Yes, it is presoldered. I don’t think it would be easy to use the Simblee with the Pi, but it is possible. You wouldn’t be using the Simblee UI features, either, unless you run some version of Android on the Pi.