Linux-Compatible Devices and Open Hardware/Modding/Retro/3-D Printing
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Devices/Embedded
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Linux Gizmos ☛ Pimoroni Interstate 75 W RP2350 Based Driver for HUB75 LED Matrices
The Interstate 75 W is a driver board designed for HUB75-style LED matrices and is powered by the RP2350 microcontroller. This board connects directly to HUB75 panels, offering a straightforward solution for creating LED displays for applications such as signage, data visualization, or interactive projects.
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CNX Software ☛ Credit card-sized quad relay board runs Tasmota firmware on ESP32 module (Crowdfunding)
The “ESP32 IoT Relay Board” is a credit card-sized ESP32 board with four small 250VAC/30VDC 7A relays that runs Tasmota open-source firmware and supports Alexa & Surveillance Giant Google Assistant for voice control. There are so many ESP32-based relay boards on the market that I don’t usually feel the need to cover new ones, but Igor Mileshin’s ESP32 IoT Relay Board is smaller than most so I thought it might be interesting to some.
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Linux Gizmos ☛ Polverine Leverages ESP32-S3 and Bosch Sensors for Air Quality Tracking
Crowd Supply recently featured Polverine, a mikroBUS-compatible environmental sensing board for real-time air quality monitoring. It detects pollution, gas leaks, and supports ventilation control. Its compact, low-power design makes it suitable for portable and wearable applications, with Bosch Sensortec’s BMV080 PM2.5 and BME690 gas sensors providing data over Wi-Fi and Bluetooth via the ESP32-S3-MINI-1 microcontroller.
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Open Hardware/Modding/Retro
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Andrew Hutchings ☛ Upgrading my 486 PC Build - LinuxJedi's /dev/null
You may remember my recent 486 PC build, I enjoyed doing it, but I had several issues with it. It also didn’t quite have everything I wanted in it. I ended up making huge changes. This post covers everything I have done to it since then.
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Hackaday ☛ Time Vs Money, 3D Printer Style
A few months ago, Hackaday’s own Al Williams convinced me to buy a couple of untested, returned-to-manufacturer 3D printers. Or rather, he convinced me to buy one, and the incredible success of the first printer spurred me on to the second. TL;DR: Lightning didn’t strike twice, but I’d still rate it as worth my time. This probably isn’t a good choice for your first printer, but if you’ve done the regular maintenance on your first printer already, I’d recommend it for your second or twelfth.
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Hackaday ☛ Could Non-Planar Infill Improve The Strength Of Your 3D Prints?
When you’re spitting out G-Code for a 3D print, you can pick all kinds of infill settings. You can choose the pattern, and the percentage… but the vast majority of slicers all have one thing in common. They all print layer by layer, infill and all. What if there was another way?
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