Check out the Electric Scooter MK-1 Build Log, Dane from transistor-man.com has done some cold weather testing and it looks like it works quite well! “The electrical layout for the MK 1 scooter is fairly straightforward. Everything starts from the 12S 4p cylindrical battery module. A Cooper Bussman 120A circuit breaker sits between the battery and the rest of the scooter. Note that, while there are a number of
This Infrared Eye-Tracking Computer Mouse uses some interesting methods of creating a eye controlled computer mouse. The intent is the you would be able to ditch the desk mouse and simply put on a pair of glasses. The system would be a self contained battery operated system that doesn’t have you tethered to your computer with a cable. “We have a pair of 3-D printed glasses with plastic lenses.
The Spherebot would be a great way to design some unique Christmas Tree Ornaments. “Our Spherebot is made of two stepper motors and a servomotor; as mentioned, a motor serves to rotate the ball on the axis, while the second motor allows to move the marker around the circumference of the sphere. The servomotor is used to raise and lower the pen. To allow anyone to easily edit the
 If you are a guitar player and like tinkering with electronics this Open Guitar Pedal will probably be of interest. “The shield has three parts: The Input Stage or Preamp: Amplifies the guitar input signal and sends it to the Arduino microcontroller to be processed. Arduino Board: It does all the Digital Signal Processing (DSP) modifying the signal and adding the effect (delay, echo, distortion, volume…). The Output Stage:
In the average year I need to change 5 or 6 sets of locks. My usual practice is to purchase an inexpensive lock from the local hardware store and simply toss out the original lock and install a new one. This is normally cheaper and faster than having the locks re-keyed. The old lock can also be used in less secure locations if desired. I was thinking it might
When you walk through a factory full of automated machines that are doing repetitive tasks you will usually see a large metal electrical cabinet beside each machine. Inside that box will most likely be a PLC that is controlling the machine by monitoring inputs and controlling motors and valves. This all sounds fine until you look at the price of this equipment, $10 or $20K will get you a
Parallax just completed their Hack the Halls Contest. Ben Kenobi made a project called How the Grinch Stole Christmas, the user aims a laser at a Christmas scene and shoots things up. Sensors detect if a hit was made and gives the player some feedback. Looks like fun! “Materials – I picked up a few cheap Christmas decorations at the dollar store and walmart as well as cotton balls,
