While wireless communications are unquestionably useful in projects, common wireless protocols such as WiFi and Bluetooth peter out after only a number of meters, which is annoying when your project …read more (https://hackaday.com/2022/01/21/casually-chirping-into-the-world-of-lorawan/)

Pen Plotter from PCB Panels
https://hackaday.com/2022/01/21/pen-plotter-from-pcb-panels/

Image from the project page.
" data-image-caption="" data-medium-file="https://hackaday.com/wp-content/uploads/2022/01/pen-feature.png?w=400" data-large-file="https://hackaday.com/wp-content/uploads/2022/01/pen-feature.png?w=800">Hacker [12344321A] has built a clever open-source pen plotter having a frame made from odd-shaped PCB panels (Chinese). It holds an ordinary drafting pen and draws on a small writing …read more (https://hackaday.com/2022/01/21/pen-plotter-from-pcb-panels/)

Apollo Comms Flight Hardware Deep Dive
https://hackaday.com/2022/01/21/apollo-comms-flight-hardware-deep-dive/

from Marc’s YouTube channel
" data-image-caption="" data-medium-file="https://hackaday.com/wp-content/uploads/2022/01/usb-feature.jpg?w=400" data-large-file="https://hackaday.com/wp-content/uploads/2022/01/usb-feature.jpg?w=800">You no doubt recall the incredible Apollo Guidance Computer (AGC) reverse engineering and restoration project featured on the CuriousMarc YouTube channel a few years ago. Well, [Marc] and the team …read more (https://hackaday.com/2022/01/21/apollo-comms-flight-hardware-deep-dive/)

Robot Nerf Alarm Blasts You Awake With Foam
https://hackaday.com/2022/01/21/robot-nerf-alarm-blasts-you-awake-with-foam/

Waking up is hard; sometimes you need more than a little chiming alarm to get you out of bed. When [Vinnie Satriale] started unconsciously switching his alarms off, he went …read more (https://hackaday.com/2022/01/21/robot-nerf-alarm-blasts-you-awake-with-foam/)

Directional Antenna 3-Way
https://hackaday.com/2022/01/21/directional-antenna-3-way/

If you read old antenna books, you’ll probably see the idea of phased vertical antennas. These use certain lengths of coax to control the phase of a signal going to …read more (https://hackaday.com/2022/01/21/directional-antenna-3-way/)

Sending Pics To Grandma, No Smartphone Needed
https://hackaday.com/2022/01/21/sending-pics-to-grandma-no-smartphone-needed/

When it comes to keeping in touch with the grandparents, a lack of familiarity with modern technology can get in the way. [palmerabollo] wanted to share photos with his grandmother, …read more (https://hackaday.com/2022/01/21/sending-pics-to-grandma-no-smartphone-needed/)

Detecting Alpha Particles Using Copper Wire And High Voltage
https://hackaday.com/2022/01/22/detecting-alpha-particles-using-copper-wire-and-high-voltage/

If you want to measure radioactivity, nothing really beats a Geiger counter: compact, rugged, and reasonably easy to use, they’re by far the most commonly used tool to detect ionizing …read more (https://hackaday.com/2022/01/22/detecting-alpha-particles-using-copper-wire-and-high-voltage/)