Gudon Kremer
A toy hacker, tech violinist, computer graphics fan, childminder, and the organizer of Toyhack Club.
"Spresense e-Violin" is a handmade electric violin controlled by Sony's Spresense. This is a brand new, built-from-scratch version of our previous remodeled e-violin. A new feature is lots of LEDs and the ultraviolet LED control that illuminates the bow hair, dyed with fluorescent liquid.
Making tips:
Previous version:
"Narabel Panel" is a transparent acrylic panels toy for infants. It supports learning of colors and numbers in enjoyable manner. The idea came from nursery teacher's daily experience.
This work tried crowdfunding on 2020 February and made immediate success at the very first day!
ELEKIT sells a cute toy grasshopper with solar panels. I used a door vibration sensor, a temperature/humidity sensor, acceleration sensor, and human detection sensor. Also I added a song module taken from Eric Carl’s ‘The Very Quiet Cricket’. This one sends the atmosphere information with BLE and controls home appliances with ECHONET Lite. This development was fun.
This was awarded by the first ELEKIT Contest。
第1回「エレキット くらしハックコンテスト」技術賞受賞作品
“Doubutsu Sentai Zyuohger (JP HP)”‘s transformation item “Zyuoh Changer” is shaped like a cellphone. Therefore we added a real phone ability by Twilio, Raspberry pi, 3G SIM, and Lightblue Bean. It took as long as 3 months to create this. It was a hard work (After published this article, I realized Qiita is not the place to announce this sort of case study.)
Kamen Rider Fourze Driver (Belt) remodeling for better feeling of Henshin
There are some LEGO-connectable microcomputer board cases publicly available. The black box in the photo is one of my favorite Raspberry Pi cases. However, there are almost no LEGO cases for batteries!
Therefore, we created a mobile battery case for “Cheero IoT” which is popular for geeks.
You can get one at Toyhack Shop @ DMM.akiba!
We are big fans of micro:bit & LEGO. We tried to harness these two worlds by 3D printed cases for micro:bit itself and its battery board (MI:power by Kitronik) and battery box (Switch science’s dry battery case). You can buy one from our Toyhack Shop @ DMM.akiba, if you live in Japan. The installation video:
GR-LYCHEE is a cute Arduino-compatible ARM Cortex-A RZ/A1LU board with a nice camera module, produce by Renesus. You can get one here. Our model is intended to be the best case of the board when used as a camera, which can contain an easy-to-get dry battery case and an LCD display, as well as a low-cost universal prototyping board sold at Akizuki denshi.On top of the case is the LEGO-compatible attachments, which you can play with.
You can get one at our DMM shop!
With this case, we won the first prize at GR-LYCHEE DESIGN CONTEST 2018.
This is an IT-powered picture story show that automatically controls lights, fan, etc. on the progress of the story. The audience can also give feedback to the system by making handclap or any noise.
Demonstrated at :
2018.8.4-5 @ Maker Faire Tokyo 2018
2018.8.14 @ Kuraki Nagata Nursery School
In summer 2018, Kuraki Nagata Nursery School held an event for children to experience an adventure with fairies.
The finale of the event was to watch fairies fly off to the sky from the door.
Demonstrated at :
2018.7.13 @ Kuraki Nagata Nursery School
2018.8.4-5 @ Maker Faire Tokyo 2018
