The 433 MHz spectrum is a little bit of an oddball.Outside of the US, it’s an open playground for devices that adhere to the power restrictions and other guidelines about best practices. IoT devices operate here, as well as security systems and, of course, remote controls. And, using a few off-the-shelf parts [hesam.moshiri] shows us […]
RF REMOTE MADE EASY Continue Reading
For as popular as the Arduino platform is, it’s not without its problems. Among those is the fact that most practical debugging is often done by placing various print statements throughout the code and watching for them in the serial monitor. There’s not really a great way of placing breakpoints or stepping through code, either. But this
A USABLE ARDUINO DEBUGGING TOOL Continue Reading
[Nick Poole] does a lot of custom work with vacuum tubes — so much so that he builds his own vacuum tubes of various shapes, sizes, and functions right on his own workbench. While the theory of vacuum tubes is pretty straightforward, at least to those of us who haven’t only been exposed to semiconductors,
VACUUM CHAMBER GETS AUTOMATION Continue Reading
Back in the 486 days, it was common to see a “Turbo” button on the front panel of many PCs, which was used to toggle between the CPU’s maximum speed and a slower clock rate that was sometimes necessary for compatibility with older software. Usually an LED would light up to show you were running
OLED DISPLAY LETS VINTAGE PC ENGAGE TURBO MODE IN STYLE Continue Reading
There was a point in time, excruciatingly brief, in which desktop computers often had a large “TURBO” button on their front panel. Some even featured an LED display that would indicate the current CPU frequency, providing visual conformation that your machine had leaped to a blistering 66 MHz. The 486 that [someyob] is restoring had
486 GETS ANIMATED TURBO BUTTON THANKS TO ARDUINO Continue Reading
Every finished product stands at the end of a long line of prototypes, and Sony have recently shared an interview and images of their PlayStation VR2 prototypes. Many of the prototypes focus on a specific functionality, and readers who are not familiar with building things might find it a bit wild to see just how big
BEHOLD A GALLERY OF SONY’S PS VR2 PROTOTYPES Continue Reading
When you think of an MMU — a memory management unit — you probably think of a modern 32-bit computer. But [Jeff Truck] has a surprise. His new RCA 1802 computer has bank switching, allowing the plucky little processor to address 256K of RAM. This isn’t just the usual bank-switching design, either. The machine has several unique
OLD STYLE 1802 COMPUTER HAS MMU Continue Reading
If you are building Internet of Things (IoT) projects, the ability to receive real-time alerts is a game-changer. Arduino, a prominent player in the IoT space, has introduced a new feature to its cloud platform that allows users to set up triggers and notifications. This feature is designed to enhance the efficiency of IoT projects by
Arduino real-time alerts for your IoT projects with Arduino Cloud Continue Reading
We always love to see projects where you can build your own lab equipment so [CompactDIY’s] homemade seismograph caught our eye. The design uses an Arduino with an accelerometer and builds on one of their earlier projects. You can see a video of the device below. The principle is simple. A hobby servo controls a pen and
SHAKE, RATTLE, ROLL, WITH YOUR OWN SEISMOGRAPH Continue Reading
As much as some people on the Internet might like to think — no, Apple did not come up with the idea of the smart watch. Even if you ignore the calculator watches that we imagine a full 60% of Hackaday readers wore at one time or another in their lives, the Timex Datalink was
MODERN SOFTWARE BRINGS BACK THE TIMEX DATALINK Continue Reading
