Measuring LED Flicker, With Phototransistor and Audio App
https://hackaday.com/2021/09/01/measuring-led-flicker-with-phototransistor-and-audio-app/

No one likes a flickering light source, but lighting is often dependent on the quality of a building’s main AC power. Light intensity has a close relation to the supply …read more (https://hackaday.com/2021/09/01/measuring-led-flicker-with-phototransistor-and-audio-app/)

Detect Lightning Strikes with an Arduino
https://hackaday.com/2021/09/01/detect-lightning-strikes-with-an-arduino/

Lightning is a powerful and seemingly mysterious force of nature, capable of releasing huge amounts of energy over relatively short times and striking almost at random. Lightning obeys the laws …read more (https://hackaday.com/2021/09/01/detect-lightning-strikes-with-an-arduino/)

Upgrade Board Adds GPIO Pins To Your Replica PDP-11
https://hackaday.com/2021/09/01/upgrade-board-adds-gpio-pins-to-your-replica-pdp-11/

Like many Hackaday readers, [Steven Stallion] has had his eyes on the replica PDP-11 created by [Oscar Vermeulen] for some time now, and this summer he finally got the opportunity …read more (https://hackaday.com/2021/09/01/upgrade-board-adds-gpio-pins-to-your-replica-pdp-11/)

Neat Little Airboat Built From Old Drone Parts
https://hackaday.com/2021/09/02/neat-little-airboat-built-from-old-drone-parts/

Multirotor drones tend to need quality and well-matched parts in order to stay balanced and in the air. However, crash enough drones and you might find you’ve got plenty of …read more (https://hackaday.com/2021/09/02/neat-little-airboat-built-from-old-drone-parts/)

Google Maps, Now On The NES
https://hackaday.com/2021/09/02/google-maps-now-on-the-nes/

Many years ago, Google created one of its famous April Fools jokes suggesting it would make an 8-bit version of Google Maps for the original Nintendo Entertainment System. [ciciplusplus] decided …read more (https://hackaday.com/2021/09/02/google-maps-now-on-the-nes/)

Pining for a De-Googled Smartphone
https://hackaday.com/2021/09/02/pining-for-a-de-googled-smartphone/

Last summer in the first swings of the global pandemic, sitting at home finally able to tackle some of my electronics projects now that I wasn’t wasting three hours a …read more (https://hackaday.com/2021/09/02/pining-for-a-de-googled-smartphone/)

Perusing the People’s Computing Company
https://hackaday.com/2021/09/02/perusing-the-peoples-computing-company/