1+ hour, 59+ min ago (290+ words) [[Piers] explains his code]Here's a fun rabbit hole to run down if you don't already have the RP2040/RP2350 PIO feather in your cap: how to serve data without CPU intervention using PIO and "read more [[Piers] explains his code]Here's a fun rabbit hole to run down if you don't already have the RP2040/RP2350 PIO feather in your cap: how to serve data without CPU intervention using PIO and DMA on the RP2350. If you don't know much about the RP2040 or RP2350 here's the basic run down: the original Raspberry Pi Pico was released in 2021 with the RP2040 at its heart, with the RP2350 making its debut in 2024 with the Pico 2. Both microcontrollers include a feature known as Programmed I/O (PIO), which lets you configure tiny state machines and other facilities (shift registers, scratch registers, FIFO buffers, etc) to process simple I/O logic,…...

4+ hour, 59+ min ago (364+ words) [Jerry Seinfeld dressed up as a honey bee promoting his film Bee Movie.]Jerry Seinfeld dressed up as a honey bee promoting his film Bee Movie. " data-image-caption="" data-medium-file="https://hackaday.com/wp-content/uploads/2025/11/Jerry-Bee2.png?w=400" data-large-file="https://hackaday.com/wp-content/uploads/2025/11/Jerry-Bee2.png?w=800" />The modern office environment has shifted in recent years. Employees are routinely asked to collaborate with co-workers half way around the globe and be camera ready, or whatever passes for "read more [Jerry Seinfeld dressed up as a honey bee promoting his film Bee Movie.]Jerry Seinfeld dressed up as a honey bee promoting his film Bee Movie. [halovideo_detail]The Halo Studio was a collaboration between HP and Dreamworks that was used during the production of Bee Movie. Studio heads at Dreamworks thought it necessary to install the HP teleconferencing solution inside the New York office of Jerry Seinfeld, the writer of the film, as to allow him to avoid…...

7+ hour, 59+ min ago (295+ words) Few of us keep big old cathode ray tubes in the house anymore, but we can still appreciate the form factor of the classic TV. Indeed, the Tinytron from [t0mg] "read more Few of us keep big old cathode ray tubes in the house anymore, but we can still appreciate the form factor of the classic TV. Indeed, the Tinytron from [t0mg] is a neat little tchotchke in this vein " a miniature TV that you could just about fit on a keyring. [t0mg] wanted this project to be quick and easy to put together. It starts with an ESP32-S3-LCD-1.69 from Waveshare. It's an all-in-one dev module which combines the microcontroller with a small screen right out of the box. You just have to solder a single six pin header to hook it up with an SD card reader and battery, and you're done with…...

1+ day, 23+ hour ago (92+ words) These days, everyone's got a million different devices that can take a passable photo. That's not special anymore. A camera that'draws what it sees, though? That's kind of fun. That's "read more If you've ever wanted to take Polaroids that looked like sketches when you're out on the go, this is a great way to do it. We've featured some other great plotter builds before, too, just few that are as compact and portable as this one. Video after the break. [I Built the World's First Sketch Camera]...

2+ day, 16+ hour ago (266+ words) The Sharp PC-G801 was an impressive little pocket computer when it debuted in 1988. However, in the year 2025, a Z80-compatible machine with just 8 kB of RAM is hardly "read more The Sharp PC-G801 was an impressive little pocket computer when it debuted in 1988. However, in the year 2025, a Z80-compatible machine with just 8 kB of RAM is hardly much to get excited about. [shiura] decided to take one of these old machines and upgrade it into something more modern and useful. The build maintains the best parts of the Sharp design " namely, the case and the keypad. The original circuit board has been entirely ripped out, and a custom PCB was designed to interface with the membrane keypad and host the new internals. [shiura] landed on the Raspberry Pi Zero 2W to run the show. It's a capable machine that runs Linux rather…...

3+ day, 22+ hour ago (258+ words) If you've got an old black and white TV, it's probably not useful for much. There are precious few analog broadcasters left in the world and black and white isn't "read more If you've got an old black and white TV, it's probably not useful for much. There are precious few analog broadcasters left in the world and black and white isn't that fun to watch, anyway. However, with a little work, you could repurpose that old tube as a clock, as [mircemk] demonstrates. The build is based around an Arduino Nano R3. This isn't a particularly powerful microcontroller board, but it's good enough to run the classic TVOut library. This library lets you generate composite video on an Atmel AVR microcontroller with an absolute minimum of supporting circuitry. [mircemk] paired the Arduino with a DS3231 real-time clock, and whipped up code…...

4+ day, 1+ hour ago (355+ words) Save a bunch of files on a good ol" magnetic hard drive, leave it in a box, and they"ll probably still be there a couple of decades later. The lubricants "read more Save a bunch of files on a good ol" magnetic hard drive, leave it in a box, and they"ll probably still be there a couple of decades later. The lubricants might have all solidified and the heads jammed in place, but if you can get things moving, you"ll still have your data. As explained over at [XDA Developers], though, SSDs can"t really offer the same longevity. It all comes down to power. SSDs are considered non-volatile storage'in that they hold on to data even when power is removed. However, they can only do so for a rather limited amount of time. This is because…...

4+ day, 4+ hour ago (349+ words) When it comes to PCs, Westerners are most most familiar with x86/x64 processors from Intel and AMD, with Apple Silicon taking up a significant market share, too. However, in China, "read more When it comes to PCs, Westerners are most most familiar with x86/x64 processors from Intel and AMD, with Apple Silicon taking up a significant market share, too. However, in China, a relatively new CPU architecture is on the rise. A fabless semiconductor company called Loongson has been producing chips with its LoongArch architecture since 2021. These chips remain rare outside China, but some in the West have been benchmarking them. [Daniel Lemire] has recently blogged about the performance of the Loongson 3A6000, which debuted in late 2023. The chip was put through a range of simple benchmarking tests, involving float processing and string transcoding operations. [Daniel] compared it to the Intel Xeon Gold…...

4+ day, 12+ hour ago (340+ words) [The box of the Busch Electronic Digital-Technik 2075]In a recent video, [Jason Jacques] demos the Busch Electronic Digital-Technik 2075 which was released in West Germany in the 1970s. The Digital-Technik 2075 comes with a few components including "read more [The box of the Busch Electronic Digital-Technik 2075]In a recent video, [Jason Jacques] demos the Busch Electronic Digital-Technik 2075 which was released in West Germany in the 1970s. The Digital-Technik 2075 comes with a few components including a battery holder and 9 V battery, a push button, two 1 K resistors, a red LED, a 100 nF ceramic capacitor, a 100 "F electrolytic capacitor, a quad NAND gate IC, and a counter module which includes an IC and a 7-segment display. The kit also comes with wires, plugs, a breadboard, and a tool for extracting modules. The Digital-Technik 2075 doesn't use the spring terminals we see in other project labs of the…...

6+ day, 10+ hour ago (941+ words) Some people are not merely satisfied with functionality, or even just good looks. These persnickety snoots (I am one of them) seek something elegant, a true marriage of form and function. Image by [YANG SHU] via Hackaday.IOShould such a person be in the market for a macro pad (or "macropad" if you prefer), that snoot should look no further than [YANG SHU]"s 8-key programmable stream deck-like device. The main goal here was the perfect fusion of display and feel. I"m not sure that an FDM-printed, DIY macro pad can look any better than this one does. But looks are only half the story, of course. There"s also feel, and of course, functionality. Yes those are (hot-swappable) mechanical key switches, and they are powered by an ESP32-S2. Drawn on the 3.5" LCD are icons and text for each switch,…...