Smartwatches can keep us informed of incoming information at a glance, but responding still takes the use of another hand, potentially occupied by other tasks. Researchers at Dartmouth College are trying to change that with their new WrisText system. The device divides the outside of a Ticwatch 2 into six sections of letters, selected by […]
Dolphins are not only amazing swimmers and extremely intelligent, but can also navigate their surroundings using echolocation. While extremely useful in murky water, Andrew Thaler decided to make a device that would enable him to observe his (normally dry) environment with a similar distance-indicating audio setup. While he first considered using an ultrasonic sensor, he eventually […]
Even if you don’t have access to fancy tools like a 3D printer or CNC router, that doesn’t mean you can’t make something interesting. James, using only a “hot glue gun, some scissors, and a screwdriver,” was able to construct a rudimentary drawing robot that marks paper with a sharpie. Two CD drives were creatively modified […]
As spotted on Reddit, maker “tkuhn” of Electron Dust decided to create a machine “with the sole goal of keeping a ping pong ball bouncing for as long as possible.” To accomplish this, he turned to audio feedback using the time difference between when four electret microphones sense the sound of the bouncing ball. Audio processing […]
Making a custom arcade cabinet has become something of a rite of passage for aspiring hackers. As seen here, maker Rodrigo decided to add an extra bit of “flair” to his build (Portuguese), with buttons that light up under Arduino power. As demonstrated in the video below, the button lights slowly fade out after being […]
There are many ways to modify analog and digital electrical signals, but things get a bit more complicated—or at least specialized—when working with coaxial signal transmission. To this end, Kerry D. Wong found an unused attenuator evaluation board in his “miscellaneous PCB bin,” and decided to give it a new life using an Arduino. The […]
Programmable LEDs are amazing pieces of hardware, allowing hackers to add a rainbow of colors to projects at reasonable prices. Troubleshooting these devices, however, can be a pain, so Devon Bray developed the “BlinkBox” to help with this task. The resulting Arduino-based tester can work with multiple types of LEDs, and is able to cycle through […]
If you love electronics as well as plants, what better way to combine the two than with a smart hydroponic system? Students at the Juan de Lanuza School decided to do just that, creating a portable hydroponic assembly that’s automatically controlled with the help of an Arduino Mega. The system uses six lengths of PVC […]
Years ago, engineer and photographer Harold “Doc” Edgerton figured out how to “bend time” by pulsing a strobe light at the nearly the same speed as droplets of water, making them appear to move in slow motion, freeze, or even more backwards. Today, Nick Lim of jolliFactory has created the same effect, controlled by an […]
After Instructables user R0RSHACH’s son won a place at the World Scout Jamboree in 2019, the maker decided to create a fairground-style game for fundraising. The resulting device is akin to a Whack-a-Mole or Batak game that can be found at high-end gyms, and features eight large light-up buttons per player on a wooden frame. When activated, […]
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