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.
Instead of purchasing a new or reconditioned iPhone Scotty from Strange Parts decided to build his own. If he was in any other country this would have been near impossible but he was in China. There are lots of repair and recycling facilities that were able to sell him the bits and pieces that he needed. At 6:15 you can see Scotty purchase the display and digitizer from
Grobenn25 built an interactive LED handrail system using an Arduino that monitors a large array of infrared sensors to detect what step the user is on. Based on the current detection pattern the stairs will light the LEDs under the handrail appropriately. During the production he looked at many different types of systems and settled on this overkill system. The sensors are changing their detection parameters constantly so that
Steve Marriott wanted to have some automated outdoor lights. They will be controlled by an Arduino that will monitor some PIR sensors to see what is going on and turn lights on based on activity. A few tictac boxes were used to mount the outdoor electronics in. The project changed over time based on community help. The end result is a a completely automated lighting system that looks
Louis Rossmann shows how he walks through a Macbook Backlight Repair. As usual the scale of the repair is tiny and work under the microscope is needed. Some tiny jumpers and a steady soldering hand come to the rescue.
w2aew demonstrates the use of decoupling and filter cap usage. We have all seen large electrolytic caps and tons of small capacitors near chips on most circuit boards. Why are they used and without them what does the circuit look like. The live demonstration on the scope with the test PCB does a great job in demonstrating the difference with capacitor placement and operating without capacitors.
