Build for monitoring, buy for safety.

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

It's easy to build, too.

All products featured here are independently selected by our editors and writers. If you buy something through links on our site, Gizmodo may earn an affiliate commission. Reading time 5 minutes We ...

Don't settle for sluggish Wi-Fi. Learn what internet speed tests mean and how to troubleshoot and fix common issues. Joe Supan is a senior writer for CNET covering home technology, broadband, and ...

This project uses an ESP32 to connect to the internet, retrieve the current time from an NTP server, and send it via serial communication to an Arduino Mega board. This compiles the code and checks ...

Discover whether Ethernet vs Wi‑Fi gaming delivers the best low latency internet and most stable online gaming connection, plus tips to reduce lag, jitter, and packet loss. Pixabay, Irobertson ...

Microsoft has seemingly disabled phone call activation for Windows 11, and perhaps older versions as well, making it impossible to activate Windows without an Internet connection. This is an unwelcome ...

Beginner-friendly guide explaining how the internet works: how websites load, what a server is, and how data travels online, using simple terms for internet for beginners. Pixabay, WebTechExperts ...

Cierra was an associate writer for CNET's broadband team, covering all things home internet. She is a graduate of the University of North Carolina at Wilmington with a master's degree. Cierra is ...

We may receive a commission on purchases made from links. Using a Roku streaming device to watch movies and TV shows doesn't require much more than an internet connection. You won't need to pay for ...