Raspberry Pi boards have gotten expensive, so I've been looking for cheaper alternatives. I found one in a tiny ESP32-S3 board.
This custom Wi-Fi router works off-grid with Starlink and can control my solar power station. Here's how I went about it.
What counts as portable is somewhat a matter of opinion, especially over the years. [Helge Fykse] has a portable spy radio of Swedish origin. For its time, it was considered very portable, crammed ...