Why a WiFi hotspot?
- for a sensor or a collection of sensors in a remote location (see Aquaponics project)
- setup a honeypot WiFi network to assess the skillset of hackers in your neighborhood.
The following link provides instructions on setting up a WiFi hotspot using the RPi 3.
On the RPi 4 the setup instructions found in this link gave the best results.
The Heifer International Aquaponics project is used as the example use case.
Background on Heifer International.
Background on Aquaponics.