In this video, I'm exploring the use of Mini PIR Sensors with ESP32 with both Arduino-based projects as well as making a movement sensor for Home Assistant by using ESPHome. The sensor is quite ...

Today I learned that WiFi and Bluetooth LE could NOT be used simultaneously on Arduino boards featuring the ESP32-based u-blox NINA-W102 wireless module, ...

In this video I'm building an Arduino Heart Rate Monitor that is housed in a toy handle in the style of the Star Trek Tricoder. The device uses the PulseSensor with an Arduino Pro Mini and an OLED ...

For those of us who weren't paying attention, over the last few years, scientists around the world have been one-upping each other in a bid to create the smallest QR code that can be reliably read.

As a very long-running Roblox game, it should be no surprise that using coupons in Heroes World is quite easy. Follow these instructions to do it: The most likely scenario for this specific game is ...

Just how small can a QR code be? Small enough that it can only be recognized with an electron microscope. A research team at TU Wien, working together with the data storage technology company Cerabyte ...

On December 3, the team secured a Guinness World Record for the world’s smallest QR code. Spanning just around 2 sq. micrometres, the code is about one-third the size of the previous record holder and ...

Researchers at TU Wien and Cerabyte created the world’s smallest QR code, measuring just 1.98 square micrometers. The record has been officially verified by Guinness World Records, making it 37% ...

On the lookout for the latest Project New World codes for Roblox? We have the complete list of updated and working codes that players can use to claim free goodies in the game. Project New World is ...

10th March 2026: We checked for new Robox promo codes. Roblox codes are typically a source of fun cosmetics for your character. If you want to make your avatar stand out with a new t-shirt, hat, ...