Category Archives: Electronics

New Book: 10 LED Projects for Geeks

We just got our author copies of 10 LED Projects for Geeks! Our friend John Baichtal shepherded this book into the world as its editor, getting contributions from a great set of folks.

The book, published by No Starch Press, turned out beautifully. It has good pictures, clear drawings, and bright colors.

It brings a few of our classic projects onto the printed page, including LED-lit Sea Urchins, Electric Origami, the Dark Detecting LED, and Edge-lit Cards. Thank you, John, for letting us be a part of this!

Bay Area Maker Faire 2018

For this year’s Bay Area Maker Faire we are excited to be collaborating with Eric Schlaepfer and Ken Shirriff. We’ll be bringing decapped chips like the MOS 6502, the 555 timer and 741 op-amp along with microscopes to let visitors see what’s inside of famous and interesting integrated circuits. We’ll also be bringing large scale reference models, including the MOnSter 6502.

Maker Faire is May 18-20 at the San Mateo Expo Center. If you’re looking for us at Maker Faire, our exhibitor number is 65553 and our project name is Uncovering the Silicon. We look forward to seeing lots of you there!

Electronics Flea Market: Now in Sunnyvale

Pile o' instruments

We’ve written about the Silicon Valley Electronics Flea Market many times before. Make that many, many, many, many, many, many, many, many times before. It’s a great source of inspiration, beautiful objects and interesting conversations.

We’re writing about it now because it has moved locations! The April 14th flea market will be at the parking lot of the Sunnyvale Fry’s. We’ll hope to see you all there this weekend!

Presidents Day @ The Tech

On Monday, February 19, we’ll be celebrating Presidents Day at The Tech Museum in San Jose.

Spend your Presidents Day with us! We’re bringing you even more hands-on science fun than usual. You’ll build straw rockets and design colorful climbing robots. We’re also teaming up with Kickstarter to give you a sneak peek at some new tech.

The hours are 10:00 a.m. – 5:00 p.m. and we’ll be bringing the MOnSter 6502 and demonstrating how microprocessors work with our giant version of the classic MOS 6502.

Callie’s Crown

Callie's Crown

Last year while attending FIRST robotics competitions with the Firebots, I had the privilege of serving as a judge at both the Central Valley Regional and the Sacramento Regional. Judging gives an opportunity to get to know the folks involved in the competition, whether they’re students, mentors, or other volunteers like you. I’ve judged and volunteered at a few events now, and one of the great things to see is the way that the community builds and nurtures itself.

Neopixel Tiara by Callie

One of the students I met in past years, Callie, had graduated from her team, but keeps coming back as a volunteer. Callie was refereeing at both events, and shines brightly as a role model. Literally. She built an LED tiara and programmed it to light in the event colors of red, white, and blue.

Neopixel Tiara by Callie

She let me take a few pictures of it. It is made with Adafruit Flora Neopixels, a Gemma controller and a small LiPo battery.

Callie and her crown

She’s a student at UC Davis, and is a truly wonderful role model for the high school students at the events. While you don’t necessarily need an LED tiara to shine as a role model, Adafruit does have a tutorial so that you can make one, too.

Using the WaterColorBot to teach programming

Water color painting titled Ocean Woman
JR has been volunteering in a high school programming class and wrote up a thoughtful post about his experiences using the WaterColorBot in the classroom. He wrote a Python library that allows users to directly control a WaterColorBot by writing Python code.

To be honest, this library is a pretty insane way to control the bot. It’s needlessly low-level: you’re manually controlling the brush’s position, you’ve got to remember to wash and re-ink the brush every so often, etc. If your main goal is to just get the bot to paint a pretty picture, there are lots of better ways to go about it.

As a teaching aid, though, it’s been a total success, because it lets students flex their burgeoning Python skills and actually make a real thing in the process! We’ve been blown away by the stuff our students have created.

He has also documented and shared his code on github.

Happy Halloween!

Paintings of skulls made by WaterColorBot

I also thought you might enjoy seeing the design we were running today in the classroom…

Spencer Yonker sent in these skull paintings made by WaterColorBot in the classroom.

Halloween!

And we had a customer stop in the shop to show off his red velvet skull, with added flickering LED eyes.

Thanks to both of you for sharing your Halloween spirit with us! And Happy Halloween!

AYAB v0.90 is here!

AYAB (all yarns are beautiful) Logo

The All Yarns Are Beautiful project has just released a new version of the AYAB software, v0.90!

It’s a bugfix-release, that means it fixes mostly known issues and no additional features are introduced. This is necessary to get more stability in the software and to have solid foundation for future developments.

If you’re using our AYAB Interface, we’d encourage you to upgrade. If you want to contribute to this project that brings new life to old Brother knitting machines, head over to the announcement to read more.