[Larry Bank]’s Arduino library to print text and graphics on BLE (Bluetooth Low Energy) thermal printers has some excellent features, and makes sending wireless print jobs to a number of …read more (https://hackaday.com/2021/09/21/mini-wireless-thermal-printers-get-arduino-library-and-macos-app/)

Cooking Up a Batch of Homebrew Welding Gas
https://hackaday.com/2021/09/21/cooking-up-a-batch-of-homebrew-welding-gas/

You know the feeling — you’re making good progress on a weekend project, you’re really in the groove, things are going right. Right up until you run out of That …read more (https://hackaday.com/2021/09/21/cooking-up-a-batch-of-homebrew-welding-gas/)

Spooky Coffin Bell Spooks Passers By on Halloween
https://hackaday.com/2021/09/21/spooky-coffin-bell-spooks-passers-by-on-halloween/

Being buried alive isn’t fun, we imagine. Fear of it led to the development of various safety coffin ideas in the 18th and 19th centuries, and [Glen Akins] wonderful Halloween …read more (https://hackaday.com/2021/09/21/spooky-coffin-bell-spooks-passers-by-on-halloween/)

Retro TV Shows off Family Memories with Raspberry Pi
https://hackaday.com/2021/09/21/retro-tv-shows-off-family-memories-with-raspberry-pi/

Fascinated by the look and feel of vintage electronics, [Democracity] decided to turn an old Sony Micro TV into a digital picture frame that would cycle through old family photos …read more (https://hackaday.com/2021/09/21/retro-tv-shows-off-family-memories-with-raspberry-pi/)

Is there a Simpler Aircraft Than This Electric Paramotor?
https://hackaday.com/2021/09/22/is-there-a-simpler-aircraft-than-this-electric-paramotor/

The dream of taking to the air has probably ensnared more than a few of us, but for most it remains elusive as the safety, regulatory, and training frameworks surrounding …read more (https://hackaday.com/2021/09/22/is-there-a-simpler-aircraft-than-this-electric-paramotor/)

Building a Custom Linux Single Board Computer Just To Play Spotify
https://hackaday.com/2021/09/22/building-a-custom-linux-single-board-computer-just-to-play-spotify/

If you want to hook up an existing stereo or amplifier to Spotify, there’s a fair few options on the market. You can even just order a Raspberry Pi and …read more (https://hackaday.com/2021/09/22/building-a-custom-linux-single-board-computer-just-to-play-spotify/)

Astro Pi Mk II, the New Raspberry Pi Hardware Headed to the Space Station
https://hackaday.com/2021/09/22/astro-pi-mk-ii-the-new-raspberry-pi-hardware-for-the-international-space-station/

Back in 2015, European Space Agency (ESA) astronaut Tim Peake brought a pair of specially equipped Raspberry Pi computers, nicknamed Izzy and Ed, onto the International Space Station and invited …read more (https://hackaday.com/2021/09/22/astro-pi-mk-ii-the-new-raspberry-pi-hardware-for-the-international-space-station/)

Home Automation Terminal With Cyberpunk Style
https://hackaday.com/2021/09/22/home-automation-terminal-with-cyberpunk-style/