The hardware was assembled by connecting the Arduino UNO R4 WiFi, the PZEM 004T, the current transformer, and the OLED ...

If you've ever seen an Ethernet port on a monitor, you may have wondered what it was doing there. If you own one such monitor ...

It’s always nice to simulate a project before soldering a board together. Tools like QUCS run locally and work quite well for ...

I needed to verify that a newly installed LoRaWAN gateway was working correctly, so I built a simple and portable testing device. In this video, I show you the two DIY LoRa devices I used from ...

Flash Bee is an easy-to-make DIY handheld lightning detector based on an ESP32-C3 board, a round display, and AMS AS3935 ...

Director of National Intelligence Tulsi Gabbard and Acting Commander of US Cyber Command William Hartman testify before the Senate intelligence committee — Oliver Contreras US intelligence concluded ...

WhatsApp Desktop app is a must-have for anyone who wants to be productive instead of constantly checking their phones when using a computer. It makes life so much easier, so when folks complain about ...

Bluetooth is baked into just about everything these days, from wireless earbuds and fitness trackers to laptops, cars, and smart home devices. In 2025 alone, there were an estimated 5.3 billion ...

The sensationalized images of serial killers presented in both the news and entertainment media suggest that they either have a debilitating mental illness, such as psychosis, or they are brilliant ...

Whether you're engaged in pixel-perfect creative work, lightning-fast gaming, or just a very long spreadsheet, you deserve a good monitor at a good price to do it on. I’m the deputy managing editor of ...