Probably the most interesting facets of amateur radio in 2021 lie in the realm of digital modes. Using the limitless possibilities of software defined radios has freed digital radio communication …read more (https://hackaday.com/2021/09/25/the-simplest-ft8-transceiver-youll-ever-build/)

COVID Green Pass Validator with Raspberry Pi
https://hackaday.com/2021/09/25/covid-green-pass-validator-with-raspberry-pi/

It seems like every nation is dealing with the plague a little differently. In June, the EU instated a COVID Green Pass which comes in the form of a paper …read more (https://hackaday.com/2021/09/25/covid-green-pass-validator-with-raspberry-pi/)

Reinforced Concrete: Versatile At Any Size?
https://hackaday.com/2021/09/26/reinforced-concrete-versatile-at-any-size/

In our community we’re no strangers to making things, and there are plenty among us who devote their efforts to modelmaking. It’s uncommon, though, for a scale model of something …read more (https://hackaday.com/2021/09/26/reinforced-concrete-versatile-at-any-size/)

Elderly Remote Keeps Things Simple
https://hackaday.com/2021/09/26/elderly-remote-keeps-things-simple/

If you are lucky, you’ve never experienced the heartbreak of watching a loved one lose their ability to do simple tasks. However, as hackers, we have the ability to customize …read more (https://hackaday.com/2021/09/26/elderly-remote-keeps-things-simple/)

FPGA Retrocomputer: Return To Moncky
https://hackaday.com/2021/09/26/fpga-retrocomputer-return-to-moncky/

Part of the reason that retrocomputers are still so popular despite their obsolescence is that it’s possible to understand the entire inner workings of a computer like this, from the …read more (https://hackaday.com/2021/09/26/fpga-retrocomputer-return-to-moncky/)

How To Get Into Computer Game Development In 1982
https://hackaday.com/2021/09/26/how-to-get-into-computer-game-development-in-1982/

If you are a follower of retrocomputing, perhaps you caught the interactive Black Mirror episode Bandersnatch when it came out on Netflix. Its portrayal of a young British bedroom coder …read more (https://hackaday.com/2021/09/26/how-to-get-into-computer-game-development-in-1982/)

Arduino Orchestra Plays The Planets Suite
https://hackaday.com/2021/09/26/arduino-orchestra-plays-the-planets-suite/

We’ve seen a great many Arduino synthesizer projects over the years. We love to see a single Arduino bleeping out some monophonic notes. From there, many hackers catch the bug …read more (https://hackaday.com/2021/09/26/arduino-orchestra-plays-the-planets-suite/)