Checks connectivity for multiple WiFi networks every x minutes.
- Reading network credentials from csv file
- Checking connectivity for every wi-fi network
- Reporting via WhatsApp message
- HTML encode spaces in names of bad networks before sending to WA
- Don't report network every time it's bad - only when it went from good to bad (and from bad to good)
- Add disconnect function and call it after successful connects
- Web server page for editing nets.csv (turning on and off checking wifi networks)
- Add one or two retries to check if a problem with some wifi is temporary
- Logging changes in network statuses (current time needed)
- Can this device "steal" power from the router (step down converter 12V->5V)?
- Can this device reset router via transistor or relay?