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
