In the early 1200s, Fibonacci introduced a series of numbers that now bear his name, starting with 0, then 1, and continuing on as the sum of the two preceding numbers. This gives values of 0, 1, 1, 2, 3, 5, 8, and so on, and after being prompted by a friend, “TecnoProfesor” decided to […]
Nearly any car comes with the proper dashboard to get you from point A to point B, but what if you want something all your own displaying important stats? While there aren’t a lot of technical details on the Arduino-based builds, these MX5 Miata JDM-style TFT cockpits by Jroobi are sure to inspire. The first […]
How we see colors is an interesting concept, and as a conversation starter about the physics of color and sound, maker Marcin Poblocki created his own ‘Color Instrument.’ Poblocki’s device rotates a wheel of colors around under a TCS3200/TCS230 sensor via a continuous rotation-modded SG90 servo motor. An Arduino Nano then spits out the tone […]
Inventor Artist Darcy Whyte wanted a drawing robot that was light enough to carry around, and could quickly produce drawings. Naturally, he turned to an Arduino Uno, along with a CNC shield and a trio of A4988 stepper drivers. These control a NEMA 8 and two NEMA17 stepper motors in a gantry-style artistic setup. The […]
Most pools feature a powered pump system to help filter out debris, but what if your water level gets too low? Pumps designed for ‘wet’ operation generally don’t work well when water isn’t present, so Luc Brun came up with an innovative monitoring solution. His setup uses an Arduino Nano and an ACS712 sensor to […]
Skittles candies come in various vibrant colors. While they may be a tasty treat, JohnO3 had another idea: to create an amazing automated display for the little circles. His device, dubbed the “Skittle Pixel8r,” uses an Arduino Mega to pull a dispensing funnel between one of 46 channels, covered on one side with a piece […]
After constructing a regen (regenerative) radio receiver several years ago, Michael LeBlanc decided to upgrade to a direct conversion receiver in order to gain some performance improvements as well as support AM and SSB signals between 160m and 20m. His build is based on Ashhar Farhan’s DC40 design available here, along with a couple modifications by […]
Robotic arms can be interesting, as are robots that roll around—especially on a semi-exotic Mecanum wheel setup. Dejan Nedelkovski’s latest How To Mechatronics build, however, combines both into one package. This project actually starts out in a previous post, where he constructs the moving base with Mecanum wheels, enabling it to slide and rotate in […]
The future envisioned in the original Star Trek included, among other things, a shipboard sickbay with electronic monitors strangely reminiscent of the machines that medical personnel use today. To recreate a functional mini-replica of these displays, YouTuber Xtronical turned to a 2.8” TFT screen, a breadboard, and an Arduino Nano—noting that an Uno would also work. […]
What if you were to neglect a robot’s mechanical design entirely and instead construct it out of unusual materials like random sticks? Researchers from the University of Tokyo and Preferred Networks have done just that. To accomplish this feat, the engineers first scanned and weighed the branches, then used deep reinforcement learning to teach the […]
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