My own take on the classic bristlebot, with a 3D printed battery holder.
These little buggers move around thanks to the vibrations from the motor.
To give a workshop.
The vibrations from the motor make the bot move around, by bending the hairs of the toothbrush backwards, the bot moves forward (kind of :D).
1 vibration motor
1 CR2032 battery
1 3D printed battery holder (found here)
Instructions on how to put them together:
step 1: cut the head of a toothbrush
step 2: print the battery holder
step 3: attach the vibration motor to the battery holder and put the 2 leads into the holder block so the battery can touch it.
step 4: hotglue the holder to the toothbrush head
step 5: cut (if needed) the toothbrush hairs to length and bend them backwards so the bristlebot will go forward instead of in circles.
step 6: decorate and race!
Finished, thinking about making a racetrack for them.
Arcaduino is an open-source (code available on completion of the project) device to bring the arcade feeling to your home. Powered by an arduino leonardo, the arcaduino features a joystick, 6 top buttons, 2 side buttons (for pinball), and 2 front buttons (start/select/credit/…?). The arcaduino features up to 4 profiles, so you can play against friends if you have a second arcaduino, or setup 4 presets for games you like to play alone.
All keys can be programmed to be any keystroke you want it to be, and the joystick can be toggled to be a mouse controller, so you can play mouse-driven games as well.
The main idea is to package it, so you can order the complete partslist and build it yourself. You also can download the code (when the project is finished), and alter it any way you see fit.
The complete history is on the project’s website. but in short: It evolved from a custom game, to a storage container mod, to a standalone device.
The buttons and joystick connect to an arduino leonardo, which will pass the input on to the computer as a HID device (keyboard/mouse).
The arduino holds up to 4 presets, which can have different key bindings (for multiplayer support/presets for games).
The toggle switch switches the function of the joystick from keyboard output to mouse control, so you can play those mouse driven games as well.
prototype finished and working.
Next step: make lasercut design for the housing, lasercut it, and if testing is successfull: start making packages.
It’s a game for children, you get a bundle with 5 tasks/puzzles, each of them gives you 1 digit, when you collected the 5 digits, you can defuse the bomb. If you did something wrong, the bomb will ‘explode’.
The design was made to be used by speelplein zowiezo. a youth working organisation. The request was made by hackerspace Brixel in Hasselt to create something fun and tech’ish for kids.
The bomb itself consists of an arduino, LCD display, piezo buzzer and a keypad. The participant first enters his/her bundle number they got assigned, and then enter the code, if the code is correct, music will play and the display will show ‘bomb defused’. If not the correct code, the buzzer will play another tune, and the display will say ‘bomb exploded’.
The code can be obtained from solving the puzzles in the bundles, for now, these consist of morse code, vinegere table ciphers, and other kids friendly puzzles that teach crypto.
I’m proud to present: the tweeting coffee pot version 2.0!
What is it?
A coffee pot that sends out a tweet when the coffee is finished.
The idea was born after I read the story of the invention of the webcam. However, I wanted to give it a modern twist. see: I’m LAZY, and I don’t want to check every so often to check if there is coffee… I want to be notified! and since my twitter feed is open most of the time, it seemed like a good idea to let the coffee pot send out a tweet when it’s ready.
Quite simple actually: with an arduino + ethernet shield, and only 2 wires. The wires go into the reservoir of the coffee maker and the arduino checks if there is conductivity between the two wires. If there is: there is still water in the pot, and the coffee is not yet ready. if there is no more conductivity, the coffee is ready to be served.