Image from project’s gallery on Hackaday.io
" data-image-caption="" data-medium-file="https://hackaday.com/wp-content/uploads/2023/07/rmqr-feature.png?w=400" data-large-file="https://hackaday.com/wp-content/uploads/2023/07/rmqr-feature.png?w=800">Recently [mit41301] wondered about increasing the data capacity of QR codes, and was able to successfully triple the number of bits using color. He chose the new rectangular micro QR …read more (https://hackaday.com/2023/07/28/color-can-triple-qr-code-capacity/)

Splitting 3D Prints Into Parts Can Add Strength
https://hackaday.com/2023/07/28/splitting-3d-prints-into-parts-can-add-strength/

One of the great things about 3D printers is their ability to make a single part all at once. Separating a part into multiple pieces is usually done to split …read more (https://hackaday.com/2023/07/28/splitting-3d-prints-into-parts-can-add-strength/)

The ESP32 Doesn’t Need Much
https://hackaday.com/2023/07/28/the-esp32-doesnt-need-much/

For those looking to add wireless connectivity to embedded projects or to build IoT devices, there is perhaps no more popular module than the ESP32. A dual-core option exists for …read more (https://hackaday.com/2023/07/28/the-esp32-doesnt-need-much/)

Understanding and Using Unicode
https://hackaday.com/2023/07/28/understanding-and-using-unicode/

Unicode logo from Wikimedia, with the text “is hard” added
" data-image-caption="" data-medium-file="https://hackaday.com/wp-content/uploads/2023/07/uni-feature.png?w=400" data-large-file="https://hackaday.com/wp-content/uploads/2023/07/uni-feature.png?w=800">Computer engineer [Marco Cilloni] realized a lot of developers today still have trouble dealing with Unicode in their programs, especially in the C/C++ world. He wrote an excellent guide that …read more (https://hackaday.com/2023/07/28/understanding-and-using-unicode/)

OLED Display Lets Vintage PC Engage Turbo Mode in Style
https://hackaday.com/2023/07/28/oled-display-lets-vintage-pc-engage-turbo-mode-in-style/

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 …read more (https://hackaday.com/2023/07/28/oled-display-lets-vintage-pc-engage-turbo-mode-in-style/)

A Game Boy Camera, Without The Game Boy
https://hackaday.com/2023/07/29/a-game-boy-camera-without-the-game-boy/

We all know the Nintendo Game Boy camera peripheral, and we’ve seen plenty of hacks for it on these pages over the years. We like [Raphael Boichot]’s camera then, as …read more (https://hackaday.com/2023/07/29/a-game-boy-camera-without-the-game-boy/)

The Right Equipment Makes a Difference for Digital Oscilloscope Music
https://hackaday.com/2023/07/29/the-right-equipment-makes-a-difference-for-digital-oscilloscope-music/

We all love our cheap digital oscilloscopes, and with good reason. But if there’s one place where analog scopes still shine, it’s anywhere you need X-Y mode. Digitally sampling the …read more (https://hackaday.com/2023/07/29/the-right-equipment-makes-a-difference-for-digital-oscilloscope-music/)

The Right Benchmark for GPT
https://hackaday.com/2023/07/29/the-right-benchmark-for-gpt/