4DCu.be
a blog about programming, gaming, technology, ...
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Using my Kindle PW3 as a Dashboard for Home Assistant
An old Kindle, once jailbroken and running KUAL, can be repurposed as a dashboard for just about anything. I’ve actually done this before - though right now, I don’t really need those stats anymore. It would be nice, however, to show some real-time data from my Home Assistant setup on...
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Building a Custom Deej Volume Mixer with an RP2040 Pro Micro
Looking for a DIY hardware volume mixer to control individual app volumes effortlessly? Whether you’re a gamer, streamer, or audio enthusiast, manually adjusting software volume sliders can be frustrating. That’s where Deej, an open-source USB volume mixer, comes in. This guide will show you how I’ve built a Deej volume...
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Building a custom GMT watch
With several custom watches under my belt, I felt ready to tackle a more advanced build. This project combines three new elements: building a GMT watch using the NH34 movement, upgrading the crystal, and customizing the date wheel. While these modifications require a few additional tools and introduce some new...
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DIY mechanical watches on a budget
I recently embarked on a watch-building journey, inspired by a YouTube video from Elliot Coll, where he demonstrated how to build custom watches using affordable parts. With the rise of accessible components from platforms like AliExpress, it’s now easier than ever to create unique, high-quality timepieces without breaking the bank....
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Making a stand-alone air quality monitor from our upgraded IKEA Vindriktning
Monitoring the air quality in spaces where you spend a lot of time can be a game-changer for your well-being and productivity. However, the air quality monitor built-in a previous post is tightly linked with Home Assistant (HA), which might limit its use in environments like offices, workshops, garages, and...
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Smart Air Quality Monitoring using an IKEA Vindriktning with ESP8266 & BME680
Effective insulation is key in modern homes, offering comfort and energy efficiency. However, it often comes with a need for better ventilation to maintain a healthy air quality. In this guide, we’re focusing on an innovative, cost-effective way to enhance your home’s air quality using some clever technology. We’ll show...
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How to Upgrade Your Nintendo 3DS with USB-C Charging
Are you tired of fumbling with your Nintendo 3DS charging cable? Do you wish you could use a modern, reversible USB Type-C connector instead? With a few common tools and a little know-how, you can add a USB Type-C port to your Nintendo 3DS charging cradle in no time! In...