Look what just arrived in the mail– Blinky AVR Earrings!
Not long ago, Rick posted on twitter about the ATtiny84 blinky earrings he had made, inspired by my voltage regulator earrings (which I now fasten on with the appropriate phillips screw).
Four blue LEDs blink in sequence, powered by a CR1220 battery. The board is traditional OSHPark purple, with an ISP header for convenient reprogramming. They’re lighter than they look and quite comfortable.
Thank you, Rick! I know what I’ll be wearing to Maker Faire!
My husband made something amazing for the eggers again! He programmed a pattern generator that enables you to create triangle or square-based patterns. The output is an svg file that can be plotted on an egg.
What a great way to play with the EggBot!
Vera wrote to us:
Having loads of fun with the wonderful EggBot! Some photos for you to enjoy.
She’s posted some beautiful eggs, drawn on with a variety of pens.
There’s a fun series of ping pong ball gifs.
She also has used clear glass ornaments with an almost stained-glass effect. There are many more photos on her site, so check them out!
Kellbot posted this video of the EggBot drawing the lovely Paisley Flower Egg design she has up on Thingiverse.
It turned out great!
Our friend Schuyler hooked up our Meggy Jr RGB hand-held video game platform up to control the WaterColorBot. He wrote on twitter:
I got the @EMSL Meggy Jr RGB working with the @MakerSylvia WaterColorBot. My code is here. https://github.com/docprofsky/meggyjr-cncserver.
The output looks great, too. Thanks for sharing your code, Schuyler!
Happy St. Patrick’s Day! Thanks to A.Z. for sharing these photos of ornaments decorated with shamrocks using the EggBot.
Photo by Scott Beale / Laughing Squid
We’re excited to be attending and helping to judge robots at RoboGames this year. This epic competition includes not just combat, but also sumo, soccer, firefighting, and so many more. The event is April 3-5 and tickets are on sale now. Evil Mad Scientist readers can get $5 off with coupon code EMSL.
This week’s What-if? from xkcd answers the question of why microwave ovens heat food unevenly, and links to our article Microwave Oven Diagnostics with Indian Snack Food.
For each of the last two years, we’ve released sets of “Download and Print” cards for Valentine’s day. The 2013 set had six equation-heavy cards, and the 2014 set was a set of six symbol-heavy cards. This year, we’re releasing six new cards, bringing the collection up to a total of 18 cards. This year’s new cards feature love, hearts, and arrows (but no bows or cupids):
For when your love is complex, but not whatsoever imaginary.
For that moment when you want to express that not only is the first derivative of your love positive, but so is the second.
(Just in case there was a danger of none of these being sufficiently cheesy.)
Not sure how we missed this one in last year’s set of symbols. Alternate caption: “You light up my life.”
And what better way to say “I love you,” than with the gift of a math problem?
You can download the full set here, which includes all 18 designs from the three years (a 765 kB .PDF document).
As usual, print them out on (or otherwise affix to) card stock, and [some steps omitted] enjoy the resulting lifelong romance.
Last January, I wrote about how to make your own traditional painted-leather “bomber” jacket, in a tutorial about how I made my Classic Lego Space Flight Jacket. Since then, several people have asked us for a future update post, to see how well it has aged after a year. And so, here we are. After a year of regular use, how well are those nifty flexible leather paints holding up?