Bigclive shows us what is inside a Arbra Dynamite Exploder.  The unit is completely powered by the turn handle. It is actually quite nice since it will indicate that the circuit resistance is when the handle is spun. The max firing voltage is around 1000 volts. To fire you simply press the fire button as turning the handle while pressing the fire button. When the fire voltage is reached the
Jeremy Cook built this walking robot using a bunch of custom cut Polycarbonate for legs and gears. The brain is Arduino based and GoPro camera in the head. The motors are controlled via a few off the shelf H-Bridge modules. Controlling the robot is done via bluetooth. Lots of time and thought went into this robot creation and it shows. It looks great walking around the beach .
Rachel Dipirro and Jonathan Lo made an interesting Talking Multimeter Project for their Cornell University ECE 4760 Final Project. The multimeter is built around a PIC32MX250F128B. This is not a robust product that will be replacing your desktop multimeter since the range is not that great. For example it can just read resistance between 0 and 50K and voltage up to 10 volts. This range is fine for
Tiny Circuits have made a playable Tiny Arcade Cabinet kit. The environment is a tiny custom Arduino system. It is stackable and of course very small. “The Tiny Arcade lets you relive the golden age of video games with an arcade cabinet that fits in the palm of your hand.  Originally launched on Kickstarter! Beautiful, vibrant full color OLED screen  Games are free and open source – play
Make has a great article that goes over what things to consider when wanting to manufacturer your hardware product. They bring up that the case often one of the largest costs of the product due to needing to make molds. There is the area between low and high volume manufacturing where using an off the shelf case would be cheapest but at some point getting a custom case
There are lots of POV displays out there, lots have multi color LEDs that can display some impressive images. Gelstronic has built this 3D POV Display that has lots of tech going on. The addressable LEDs are setup in strips of varying heights. When spun this allows the display to create 3D images in color. A Parallax Propeller microcontroller powers the main display while an Arduino Pro Mini
This Antenna filled with Acorns certainly would not be operating properly. Looks like a squirrel had found the best hiding spot ever. I wonder how long it took for 300 pounds of acorns to be jammed into the antenna? I bet if you had a look at the efficiency of the antenna it was taking a gradual nose dive as more and more nuts were stored inside.
