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February 16 2020

06:58

Mike and Key ARC Swap Meet March 7th, 2020

The 39th annual Mike and Key ARC Swap Meet will take place on Saturday, March 7th, 2020 at the Washington State Fairgrounds in Puyallup.

This is one of my favorite ham radio events in the Seattle area and I’ll be there again this year, hopefully with a seller’s table (still waiting on confirmation).

January 14 2020

18:24

Rescue Shield Kits (PCBs + components) are back in stock!


I sold out of Rescue Shield kits just after the holidays. Fortunately, new PCBs and components arrived last week. Hooray for no back-ordered components this time! What used to be the norm is now the exception. (Technically, green LEDs did ship a week later than the rest, but as I was still busy soldering boards it didn’t affect the overall lead time to produce kits.)

I’m happy to announce that kits are back in stock now.

You can order one on the Rescue Shield kit page.

January 07 2020

22:32

Rescue Shield Bare PCBs are back in stock!

Rescue Shield PCBs are back in stock! You can place an order on the AVR HV Rescue Shield kit page.

December 24 2019

17:48

Happy Holidays!

Episode 472(!) of The Amp Hour (Keyzermas Vacation) just went live.

In it, we discuss wireless charging, Solidworks vs. Fusion 360, why it’s a good idea to have ALL the tools available and not just pick one, and the importance of having more than the minimum number of pieces of flair.

Happy Holidays from MightyOhm!

PS: Kits are in stock but will resume shipping after the holidays!

October 01 2019

23:33

August 10 2019

22:55

August 07 2019

23:19

Geiger Counter Workshops at Chaos Camp 2019 #CCCAMP2019

If you are one of the lucky people that has somehow procured a ticket for Chaos Camp 2019 on August 21-25, 2019 outside of Berlin, I’ll be leading two Geiger Counter workshops over the course of the week.

If you’re at Camp, stop by and say hello! I’ll be spending most of the week in the Hardware Hacking Area.

See you at Camp!

23:03

Free Shipping Thru August 15th

To celebrate eight years since the release of my Geiger counter kit, for the next eight days you can purchase a kit with free economy shipping!

Featured Kits:

MightyOhm Geiger Counter

HV Rescue Shield

While supplies last. Be sure to select economy shipping at checkout (Priority Mail included for US customers). Offer expires at midnight pacific time on August 15th, 2019.

June 14 2019

17:19

Teardown 2019 is Happening in Portland June 21-23 (Next Weekend!)

Teardown 2019 will take place in Portland, Oregon on June 21-23 (next weekend!) Tickets are still available.

I hope to see folks there and I should have a few Geiger kits on hand.

June 10 2019

22:34

A Look Back at the First Maker Faire

I’m a little bit late posting this, but as most folks are now aware, Maker Media is struggling. Make Magazine and the Maker Faire were major sources of inspiration for me in the mid 2000s when I created MightyOhm. I owe a lot to the folks behind Maker Media and the makers who inspired me in those early years.

EMSL and Ben Krasnow have been posting early Maker Faire photos and I wanted to contribute some of mine as well.

Scroll down for photos of the first ever Maker Faire, held in San Mateo way back in 2006!

There were robots. There was LEGO. There was fire. Fire has always been an important ingredient of the Maker Faire, and some of the early years burned the brightest (maybe too bright, if you ask the asphalt in one of the parking lots). There was also a firetruck. That made fire. Obviously. Steampunk wasn’t a thing yet, but the ingredients were there. There were Mythbusters. I remember feeling a lot of local pride that Mythbusters (the show) was filmed in and around San Francisco, my home at the time. Speaking of San Francisco, there were vehicles designed to hack San Francisco’s plentiful and well-located commercial parking spots. Telstar’s truck had the corresponding article from Make Magazine posted in the window. This was more common in the early days, as many of the folks exhibiting at the Faire had also appeared in the magazine. There was GRL, and throwies. Lots of throwies. There was the SS Alpha Fox and other vehicles and projects from local artists such as the Flaming Lotus Girls (maybe not 2006, but certainly later) and the Crucible. Arduino wasn’t a thing yet (it existed but very few people had heard of it), so there were other microcontroller platforms on display, such as the Make controller… … and TinyOS Toys. There were weird cars… … and electric scooters, made before the availability of cheap LiPo cells. There were steam-powered analog computers… … and a robot giraffe that became a symbol of the Maker Faire…
… and amazing 3d sculptures, before 3D printing was a thing. There were robots that drew on eggs, before there were Eggbots. And there were lots of Makers, including yours truly, who would go on to exhibit in subsequent years.

Dale Dougherty and the staff behind Maker Media and the Maker Faire – THANK YOU for years of inspiration, laughs, friends, fun, and LOTS of tasty paella. You guys rock.

March 20 2019

17:09

this weekend: VCF @ Living Computers Museum in Seattle

This year’s Vintage Computer Festival is being held this weekend at the Living Computers Museum in Seattle. Full program is here.

The Connections Museum is also holding special hours for the festival. I highly recommend a visit.

February 19 2019

23:49

Mike & Key Swap Meet March 9th, 2019

The Mike & Key Electronics Show and Swap Meet is coming up fast! It will be held on Saturday, March 9th, 2019 at the Washington State Fairgrounds in Puyallup, WA. This is the premier electronics swap meet / flea market in WA state. I won’t have a table this year but I’ll still be there. I wouldn’t miss it!

See you at the show!

October 21 2018

16:38

Simple Pi Geiger Counter Display

Bill Ballard built this simple display for his MightyOhm Geiger Counter using a Pimoroni Scroll pHAT .

Construction details can be found here or you can read Bill’s article in Issue 67 of The MagPi magazine.

August 30 2018

15:39

MightyOhm Geiger Counter kit featured in the latest video by The Current Source

The Current Source recently released a video about radioactivity, Geiger counters, and Derek’s battle with Thyroid cancer.  (Great news, he’s now cancer free!)

Check out the Geiger Counter kit page for more information about the kit!

July 19 2018

01:33

Ten years of MightyOhm

On this day in 2008 I created my first post on a brand new website. The site looked a lot different back then, and it wasn’t until the following year that I shipped my first electronic kit, the HV Rescue Shield! Today marks ten years of MightyOhm.

01:33

Ten years of MightyOhm

On this day in 2008 I created my first post on a brand new website. The site looked a lot different back then, and it wasn’t until the following year that I shipped my first electronic kit, the HV Rescue Shield! Today marks ten years of MightyOhm.

June 28 2018

06:08

February 26 2018

19:09

Mike and Key ARC Flea Market, Sat. Mar 10, Puyallup, WA

The 37th annual Mike and Key ARC Electronics Show and Flea Market is just under two weeks away.

I have no affiliation with Mike and Key, but in my opinion this is the best electronics swap meet in the greater Seattle area. I go every year. (If you know of others, post in the comments!)

The Mike and Key flea market will take place on Saturday, March 10th at the Washington State Fairgrounds in Puyallup. Doors open at 9AM (earlier for sellers). I’m looking forward to meeting other PNW electronics and ham radio folks there. I have a seller table again this year so I should be pretty easy to find. I’ll be selling a few kits along with ham radio gear and miscellaneous electronics.

Mike and Key hosts ham radio exams during the swap meet, so if you’re interested in getting a ham radio license this is one opportunity. More details on the event flyer.

More info.

January 29 2018

18:43

Schrödinger’s Martini: Geiger Counter as mixologist

Photo: Lenore Edman

Josh Meyer and Jonathan Foote created this scintillating cocktail robot for Barbot 2013. They also exhibited it at the DNA Lounge Cocktail Robotics Grand Challenge last July.

A MightyOhm Geiger Counter samples radioactive decay from a martini glass that contains a small amount of uranium. If the number of clicks in a set period is even, the robot dispenses vermouth into the glass. If the count is odd, it dispenses gin, therefore creating a wet or dry martini based on the random process of radioactive decay.

18:43

Schrödinger’s Martini: Geiger Counter as mixologist

Photo: Lenore Edman

Josh Meyer and Jonathan Foote created this scintillating cocktail robot for Barbot 2013. They also exhibited it at the DNA Lounge Cocktail Robotics Grand Challenge last July.

A MightyOhm Geiger Counter samples radioactive decay from a martini glass that contains a small amount of uranium. If the number of clicks in a set period is even, the robot dispenses vermouth into the glass. If the count is odd, it dispenses gin, therefore creating a wet or dry martini based on the random process of radioactive decay.

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