

Already done!
LoRa is a low power radio communication protocol that is very useful for warehouse and farming equipment, among many other things. I currently use ESP32s for GPIO, LoRa, and Wifi, and occasionally FPGAs for various tasks. But ad-hoc testing and diagnosis can be a pain for these devices, requiring multiple different dongles, power adapters, and converters.
If I can consolidate 75% of that gear into a single, handheld device, it will easily pay for itself in productivity gains.

To add to this as someone who has seen behind the curtain of how much of this tech is set up, lights are a common hiding place for cameras. Exit signs, parking lot lights, motion sensor lights, and the like. These are unfortunately also very difficult to detect by design, since they are expected to consume electricity, are almost always closed circuit with data wires parallel to the power wires, are practically impossible to observe in low light, and generate some heat even without any included surveillance equipment.