Open Hardware/Modding/Retro: Raspberry Pi, Arduino, and More
-
Jeff Geerling ☛ CaribouLite SDR HAT for SDR on a Raspberry Pi
CaribouLite SDR HAT for SDR on a Raspberry Pi
A couple years ago, after I heard about the CaribouLite on CrowdSupply, I pre-ordered one.
I've dabbled in SDR with an RTL-SDR v3 for a few years, even using one with nrsc5 to listen to baseball games OTA because of silly MLB blackout restrictions.
[...]
So the CaribouLite's hackable FPGA, the open source firmware, and it's much better frequency range (30 MHz up to 6 GHz) combined with TX capabilities to make it enticing.
Well, I received my CaribouLite back in March... of 2023. And it was sitting in my 'RF' box since then. I decided to pull it out and plug it into a Pi to see how it works or if it's worth the extra $100 I spent on it over another RTL-SDR v3!
-
Tom's Hardware ☛ Maker builds their own pocket sequencer using a Raspberry Pi Pico 2
Arnov Sharma is using a Raspberry Pi Pico to power his custom pocket-sized sequencer that uses 25 buttons and custom features.
-
Tom's Hardware ☛ Student builds open-source laptop in 6 months — uses 4K AMOLED screen and has 7h battery life
Student Byran Huang builds a fully open-source laptop in six months as part of his senior school project.
-
Louie Mantia ☛ Super Pokémon
Making use of Ken Sugimori illustrations, I recomposed the emblems found on the Japanese box and label art, including the wacky Revue font wrapped around the circle. While the real Japanese labels had solid color backgrounds, I used the zig-zag split from the box design, with the bottom-left yellow corner repurposed as a little Poké Ball, for a small splash of color in that spot, something that can unify all titles. The bottom-right features a small link cable glyph. With a Pokémon logo accented differently per game, applied to a color cartridge shell, this really feels ideal to me.
-
Doug Brown ☛ The invalid 68030 instruction that accidentally allowed the Mac Classic II to successfully boot up
This is the story of how Apple made a mistake in the ROM of the Macintosh Classic II that probably should have prevented it from booting, but instead, miraculously, its Motorola MC68030 CPU accidentally prevented a crash and saved the day by executing an undefined instruction.
-
Arduino ☛ The future of making, Made in India: Introducing the Arduino UNO Ek R4
We are proud to announce the Made-in-India UNO Ek R4! Available exclusively in India in both WiFi and Minima variants, it is born to meet the needs of the country’s growing maker and innovation ecosystem, by combining all the powerful features of the UNO R4 with the benefits of local manufacturing, enhanced availability, and dedicated support for Indian users.
-
Sebastian Mihai ☛ seb80 - my custom computer based on the Z80 CPU
Welcome to the section dedicated to seb80, my custom computer based on the Z80 processor and built using 7400-series TTL ICs.
I designed and built seb80 from basic components (CPU, RAM, ROM, etc.), to learn about how computers work, at a more fundamental (organization, architecture, interfacing) level.
-
Digital Camera World ☛ Ever wondered how instant cameras work? It’s both incredibly complicated and remarkably simple
Polaroid became so synonymous with the instant camera that it became a genericized trademark, and despite the original company folding in 2001 and being resurrected in 2017, people still refer to instant cameras and prints as ‘Polaroids’ today.