Which connection is better: fiber optic + WiFi or copper cable + Ethernet cable?

My landlord had a fiber optic connection box installed in my apartment. The problem: The connection is inconveniently located behind a door in the hallway, which would require drilling a very unsightly hole in the corner to run an Ethernet cable all the way to my PC and then across the apartment. That would be…

Interference with Ws2812b LED strips when multiple control wires are in one cable?

Hi, I have a small project where I control 2 LED strips separately with 2 ESP32 C3. I transmit the control line for each strip using a CAT-7 cable approximately 10 m long. I use a level converter for amplification. If I route the control lines over 2 individual cables, everything works perfectly. However, to…

Problem with external hard drive. Backup not possible. What to do?

My external hard drive probably won't last much longer. However, it contains important files, and I can't copy them to my desktop. Whenever I try to copy it to the desktop, it loads quickly at first and then suddenly it is so slow that the transfer should take several hours. I'm desperate and don't know…