As spotted on Reddit, the Light Based Optical Productivity Enhancement System (LOPES) is an Arduino Nano Every-powered device that lights up depending on the tasks that you have left to complete. The Nano takes input from five copper touch sensor plates on the top, which enable you to add or remove jobs of different priorities.
Display is via addressable LEDs diffused by a tube, and importance is ranked as either green, yellow or red. As of now, it simply shows how much you have to do without specifics, however, its creator plans to eventually make an app to allow for further interface with a phone.
Sunrises can be beautiful, not to mention sunsets, but seeing both at one time would seem to be an impossibility. Dries Depoorter, however, has developed an installation that displays the two events as they happen on side-by-side screens, using footage sourced via unsecured CCTV cameras.
Depoorter’s “24h Sunrise/Sunset” project uses a pair of Raspberry Pi 3Bs to show the images, and send time and location data to an Arduino Nano Every over serial. The Nano Every then reveals this info on four VFD displays on the console, giving onlookers a frame of reference.
24h Sunrise/Sunset is on exhibit at the “Window of the World” art festival in St. Moritz, Switzerland until October 18th, 2020.
It’s generally not advisable to leave equipment running when unattended. As a safeguard against this possibility at hackerspaces and elsewhere, element14 Presents’ Dave Darko built a custom switch that requires users to intermittently push a button in order to produce additional ‘on’ time.
The trick here is that instead of having one keep-alive button, the unit has a matrix of 16 buttons that light up randomly to be pressed. The idea is to prevent someone from setting up a second device to simply poke the same key over and over.
The ‘unhackable’ switch, which resembles a MIDI sequencer input, runs on an Arduino Nano Every and uses a relay to directly control the power state. It’s demonstrated toward the end of the video below, where Darko plays a sort of simple button-based game to keep an LED fixture on.