If you want to keep something at a certain temperature, say a block of aluminum, you’ll need a thermocouple and some sort of heating element. While you could turn a heater on and off abruptly in a sequence appropriately known as “bang-bang,” a more refined method can be used called PID, or proportional-integral-derivative control. This […]
Why livecasting from Arduino Education About a month ago we started livecasting from Arduino’s YouTube channel. This is something I had been willing to do for quite some time, but I never figured out the way to make room in my agenda to fit the planning required to make it happen. Technology has changed a […]
Digital music—which gives us access to a virtually unlimited amount of media at our fingertips—is an amazing innovation. On the other hand, if you get nostalgic for something a bit more tangible, this “Victrola for the 21st century” may just fill that gap. The device, by maker “castvee8,” plays digital music with the help of an […]
If you need to know the forecast, generally you can look outside, listen to a weather report, or take advantage of the wide range of online services available. For something local to your dwelling place, however, this 3D-printed weather measurement device gives a great way to see what’s going on. The system features a 3D-printed […]
As seen here, although you might consider your oscilloscope and other test equipment to be pretty neat, you most likely don’t have anything nearly as cool as the scanning electron microscope that was dragged out of a shed at Benjamin Blundell’s local hackerspace. The small detail is that it doesn’t currently work. They’ve been able […]
Graffiti with spray paint is generally impolite and illegal, but as hacker “Reven” shows in his write-up, you can get a very similar effect with long exposure photography and carefully-timed LEDs. Instead of blindly moving a light point about to make this effect, he built his own handheld light painter using an Arduino Uno and […]
Wile we know on some level that prices adjust to market conditions, with Amazon now owning Whole Foods, one could perhaps see a day when this happens electronically and instantaneously. To get a preview of what this might look like, maker “msbirfday” decided to create a random price generator based on an Arduino Uno and […]
If you ever find yourself needing someone to talk to and can’t find a confidant—or perhaps even a pet—then the Eve chatbot by Debashish Buragohain will happily fill in. This little robot uses Google Voice Recognition on an Android phone to listen to what you say and convert it to text, then pipes it over […]
Walking robots can be a lot of fun, but many people would logically think that they need CNC equipment or a 3D printer to make this sort of bot. Creator “Raz85,” however, shows that this isn’t actually required, and built a quadruped using a structure comprised entirely out of corrugated cardboard. Each of the four […]
A keyboard and mouse is a great user interface system for general computing tasks, but in other situations knobs, sliders, and lights would certainly be more fun. If you enjoy making digital music, then you should check out this low-cost, Arduino-based MIDI controller by Músico Nerd. The Traktorino gives you access to a plethora of knobs […]
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