Celebrate mRNA Vaccine With This Badge That Blinks the Nucleotide Code
https://hackaday.com/2021/08/24/celebrate-mrna-vaccine-with-this-badge-that-blinks-the-nucleotide-code/

To celebrate getting his second vaccine dose [Paul Klinger] combined two of our favorite things — blinking lights and wearable tech — to create an awesome mRNA vaccine badge. The …read more (https://hackaday.com/2021/08/24/celebrate-mrna-vaccine-with-this-badge-that-blinks-the-nucleotide-code/)

SQLite on the Web: absurd-sql
https://hackaday.com/2021/08/24/sqlite-on-the-web-absurd-sql/

Love it or hate it, the capabilities of your modern web browser continuously grow in strange and wild ways. The ability for web apps to work offline requires a persistent …read more (https://hackaday.com/2021/08/24/sqlite-on-the-web-absurd-sql/)

Compact Sensor Keeps You Safe by Watching CO2 Levels
https://hackaday.com/2021/08/24/compact-sensor-keeps-you-safe-by-watching-co2-levels/

Remember when work meetings were just a bunch of people filling up a small, poorly ventilated room with their exhaled breath? Back in the good old days, all you had …read more (https://hackaday.com/2021/08/24/compact-sensor-keeps-you-safe-by-watching-co2-levels/)

Eavesdropping by LED
https://hackaday.com/2021/08/25/eavesdropping-by-led/

If you ever get the feeling someone is watching you, maybe they are listening, too. At least they might be listening to what’s coming over your computer speakers thanks to …read more (https://hackaday.com/2021/08/25/eavesdropping-by-led/)

Deceptively Simple Process Turns Bottles into Filament
https://hackaday.com/2021/08/25/deceptively-simple-process-turns-bottles-into-filament/

If you know that most soda bottles are made from PET plastic, you’ve probably thought about how you could make filament from them and have an endless supply of cheap …read more (https://hackaday.com/2021/08/25/deceptively-simple-process-turns-bottles-into-filament/)

Keebin’ with Kristina: the One with the Index Typewriters
https://hackaday.com/2021/08/25/keebin-with-kristina-the-one-with-the-index-typewriters/

You may have noticed that I neglected to write an introductory paragraph for the last one of these — I was just too excited to get into the keyboards and …read more (https://hackaday.com/2021/08/25/keebin-with-kristina-the-one-with-the-index-typewriters/)

Pedal Operated Cable Cam For Hands Free Video
https://hackaday.com/2021/08/25/pedal-operated-cable-cam-for-hands-free-video/