Building a DIY laser modem

Reading Time: 2 minutes Arduino Team — August 8th, 2022 All digital communication ultimately comes down to transmitting ones and zeroes, but there are many ways to achieve that. One can encode that binary data as modulation in a radio signal or simply pulse electricity through a wire. But one of the most interesting methods is optical. Flashing a…… Building a DIY laser modem weiterlesen

This high-precision AC meter handles inductive loads

Reading Time: 2 minutes Arduino Team — August 5th, 2022 AC (alternating current) meters are useful tools for measuring power draw. One might use an AC meter to monitor the power consumption of their devices and appliances with the goal of lowering their energy bill. Makers in particular can benefit from AC meters to learn about the power consumption…… This high-precision AC meter handles inductive loads weiterlesen

Centimeter-scale lawn mower positioning without GPS RTK

Reading Time: 2 minutes Arduino Team — July 27th, 2022 GPS is perfect for navigating roads, because that doesn’t require much precision. But GPS is only accurate to several meters, which means that it is unsuitable for applications that require more precise positioning. GPS RTK (real-time kinematic) systems can achieve much greater accuracy, but they are complex and require…… Centimeter-scale lawn mower positioning without GPS RTK weiterlesen

A DIY thermally actuated deformable mirror

Reading Time: 2 minutes Arduino Team — July 25th, 2022 In typical applications, the optimal mirror is as flat as possible. The flatter the mirror, the less optical distortion it imparts onto the reflected “image.” Distortion isn’t often desirable, so precision mirror manufacturers take great pains to manufacture ultra-flat mirrors. But distortion is sometimes a good thing, such as…… A DIY thermally actuated deformable mirror weiterlesen

Reviving a vintage secondary split-flap clock with Arduino

Reading Time: 2 minutes Arduino Team — July 25th, 2022 In the world of computing, many interfaces utilize a primary/secondary model of asymmetric communication, in which a primary host device controls one or more secondary client devices. This model is, for example, common among PATA and SATA hard drive arrangements. It is also common in clock networks, with a…… Reviving a vintage secondary split-flap clock with Arduino weiterlesen

Get connected to your Nano with the Screw Terminal Adapter

Reading Time: 3 minutes The brand new Nano Screw Terminal Adapter turns up the speed on your prototyping efforts by giving you a fast, reliable way to hook up your boards. This awesome add-on is exactly what seasoned makers have been crying out for, and is now available from the Arduino Store. Let’s take a look at this mini…… Get connected to your Nano with the Screw Terminal Adapter weiterlesen

A PDA-style mini pocket computer

Reading Time: 2 minutes Arduino Team — July 13th, 2022 For a time in the late 1990s and early 2000s, PDAs (personal digital assistants) were quite popular. But smartphones made PDAs obsolete, as even early models had far more functionality. Many of today’s microcontrollers have performance similar to early PDAs and Volos took advantage of that to build an…… A PDA-style mini pocket computer weiterlesen

This small device helps test thousands of old PS/2 keyboards

Reading Time: 2 minutes Arduino Team — July 12th, 2022 Some vintage computer keyboards, especially units like the IBM Model M, are still quite desirable. Usually they’re popular among mechanical keyboard or retro computing enthusiasts who want period-correct hardware. YouTuber Midwest Cyberpunk had thousands of these old keyboards and needed a way to test them. So he built this…… This small device helps test thousands of old PS/2 keyboards weiterlesen

This small Space Invaders game runs on an Arduino Nano with a salvaged CRT display

Reading Time: 2 minutes Arduino Team — July 6th, 2022 Rob Cai over on Instructables has created his own version of the classic video game Space Invaders using an Arduino Nano. However, unlike most other projects that would typically incorporate some kind of LCD or OLED screen, he chose to use a small black and white cathode ray tube (CRT) display recovered from…… This small Space Invaders game runs on an Arduino Nano with a salvaged CRT display weiterlesen

This RGB wedding dress mimics Princess Aurora’s from Sleeping Beauty

Reading Time: 2 minutes Arduino Team — June 17th, 2022 Inspired by his Christmas tree’s RGB lights, Brett Haddoak had the idea to turn his now-wife Rachelle’s wedding dress into something out of the classic children’s movie Sleeping Beauty by embedding a series of RGB LED strips that would elegantly illuminate it just like Princess Aurora’s. At first, Haddoak chose to simply take…… This RGB wedding dress mimics Princess Aurora’s from Sleeping Beauty weiterlesen

Graffiti robot paints like a human

Reading Time: 2 minutes Arduino Team — June 9th, 2022 Robots are capable of far more precise and accurate motion than humans are. That is great when you want a robot to assemble a PCB or perform heart surgery. But it’s a problem when you want robots do something creative — they’re just too perfect. The lack of human-introduced…… Graffiti robot paints like a human weiterlesen

This system continuously monitors water levels for seven houses

Reading Time: 2 minutes Arduino Team — June 8th, 2022 For the last 50 years, Ovidiu’s Romanian village has relied on a small water source located at a spring, but due to increased droughts, they have since been dependent on an additional well. So far, the process of switching on the pump to refill the main reservoir has been done…… This system continuously monitors water levels for seven houses weiterlesen

Continuously measure wind speed and direction with this EMT conduit-mounted station

Reading Time: 2 minutes Arduino Team — May 17th, 2022 It seems like DIY weather stations are everywhere, and while most can perform the basic functions of measuring temperature, humidity, and air pressure, the majority are still unable to determine wind speed and direction. In response, Austin Allen from Elation Sports Technologies LLC created his own system that uses an anemometer…… Continuously measure wind speed and direction with this EMT conduit-mounted station weiterlesen

Automatically make masking tape labels with this Arduino-powered machine

Reading Time: 2 minutes Arduino Team — May 12th, 2022 Masking tape makes for a great label as its weak adhesive does not tend to leave visible residue and names can be easily sketched onto its surface, albeit quite slowly. To expedite this process, Hackaday.io user michimartini decided to design and build a machine that writes labels automatically. The device is essentially…… Automatically make masking tape labels with this Arduino-powered machine weiterlesen

This special front door controller has several ways to unlock it

Reading Time: 2 minutes Arduino Team — May 11th, 2022 For YouTuber Jroobi, merely walking up to his front door, inserting a key into the lock and turning the handle was too simple, which led him come up with a very unique and high-tech design for a new type of lock. His idea was to combine several different kinds of verification/control…… This special front door controller has several ways to unlock it weiterlesen

This chocolate bunny screams when it’s eaten

Reading Time: 2 minutes This chocolate bunny screams when it’s eaten Arduino Team — April 19th, 2022 Bunnies made from chocolate are staples around springtime, and unlike actual rabbits, they don’t mind being consumed. But YouTuber Repeated Failure decided to introduce a little bit of macabre humor by causing the chocolate bunnies to begin screaming as they’re devoured. The first challenge was…… This chocolate bunny screams when it’s eaten weiterlesen

Experiment with ’80s graphics using this breadboard setup

Reading Time: 2 minutes Experiment with ’80s graphics using this breadboard setup Arduino Team — April 19th, 2022 Before standardized video cards came along, computer and video game console designers utilized video chips. Those simplified the design process and offloaded much of the work from the processor. Those video chips had hardcoded graphical building blocks and handled video generation.…… Experiment with ’80s graphics using this breadboard setup weiterlesen

This DIY coop controller makes caring for chickens a much easier task

Reading Time: 2 minutes Arduino Team — April 5th, 2022 Chickens, like most other livestock, require consistent care including access to fresh water, plenty of food, and space to roam around until sheltering throughout the night. For the hobbyist farmers who run the YouTube channel East x West Farms, they needed a simple way to automatically regulate their chicken coop…… This DIY coop controller makes caring for chickens a much easier task weiterlesen

RFID music player delivers vintage charm

Reading Time: 2 minutes Arduino Team — March 29th, 2022 By every objective measure, with the possible exception of durability, today’s technology is superior to that of the past. That is certainly true of music players, with modern devices having the ability to stream almost every song ever recorded and the capability to do so with high fidelity. But…… RFID music player delivers vintage charm weiterlesen

This special chessboard brings digital opponents into the physical world

Reading Time: 2 minutes Arduino Team — March 3rd, 2022 Chess still remains an extremely popular game but finding someone to play against can be a struggle, especially when it’s done in-person instead of through a screen. Greg06 on Instructables has created an automated chessboard that can not only tell where specific pieces are moved, but also play against a live human…… This special chessboard brings digital opponents into the physical world weiterlesen

Controlling any IR device with a remote and some hacking

Reading Time: 2 minutes Arduino Team — February 12th, 2022 All too often, people run into the issue of having many remotely controlled devices scattered around their house, with each requiring its own unique controller. The idea behind how they operate is simple: a single action corresponds to a number and pressing a button on the controller causes that…… Controlling any IR device with a remote and some hacking weiterlesen

ElectroVoxel robots reconfigure themselves using magnets

Reading Time: 2 minutes Arduino Team — February 8th, 2022 The ability to control magnetism is very powerful and acts as the basis for huge swaths of modern technology. Without electromagnetism, we likely would never have progressed into the digital age — we wouldn’t even have electric motors. Now engineers from MIT CSAIL are using electromagnetism for something new:…… ElectroVoxel robots reconfigure themselves using magnets weiterlesen