Comms: WiFi Configuration

[mitra42]

How to get the WiFi configured - ?

I've seen several libraries ... https://github.com/Juerd/ESP-WiFiSettings - looks ok - WiFi portal if can't connect to previous can collect other variables (e.g. MQTT) - also see OTA example here https://github.com/tabahi/ESP-Wifi-Config - not as sophisticated as Juerd's uses local memory rather than SPIFF https://github.com/snakeye/WifiConfig - simple, builds UI with javascript but note it MIGHT require net connectivity to fetch those dependencies ? Either may do what is needed in terms of a captive portal, but that may not be the right solution for field deployment

Note some examples at https://github.com/snakeye/WifiConfig/blob/master/src/WiFiConfig.cpp of WiFi parms to EEPROM

[mitra42]

Design thinking ..... (independent of looking at what others have done)

• [x] If device has been configured it should try and connect to prior WiFi & MQTT while also offering config options
• [ ] See #48

Config options

• [ ] See #49
• [x] It should offer a WiFi page, this should allow setting WiFi SSID & passwd & MQTT host (& node id?)
• [ ] See #50

More thoughts

• [x] Should combine this with setting ID of the node
• [x] Start with Juerd's library - if its too heavyweight then strip down for a later version

[mitra42]

First attempts with Juerd's library

• POC
  • [x] Test example from ESP-WiFiSettings on ESP8266
  • [x] test edited example on ESP32
  • [x] Submit fixes to example to library ESP-WiFiSettings
  • [ ] See #48
  • [x] Open issue regarding language settings at compile time
  • [x] Copy/adapt to new system_wifi.cpp
  • [x] Test minimal
  • [x] Add mqtt config
  • [x] Try with ESP32
  • [x] Move WiFi from system_mqtt to system_wifi
  • [x] Check other WiFi issues posted
  • [x] Make sure can reconnect e.g. if WiFi off temporarily
  • [x] Obtain client id and pass to MQTT and poss WiFi client
• [ ] MVP
  • [ ] See #42 - especially Indonesian
  • [ ] Add link to html portal (maybe presume on same machine as mqtt on known port) and allow configuration
  • [ ] Consider after #41
  • [ ] Probably some of the items in previous comment.
• [ ] More
  • [x] Think about displaying retained topics simply (blind topic:value) or clever (e.g. bars) via some javascript (probably by forking library)

[mitra42]

Made the WiFi portal time out - it only does this if it has enough information to attempt a connect, in which case after (configurable) 2 minutes it will reset and try wifi again.

Tested a bit - e.g. turn off WiFi - watch portal come on - turn WiFi back on, see portal timeout and reconnect to WiFi.

Note - its dumb, there is no data etc being collected while WiFi is down.

[mitra42]

Closing as most done, and the rest have their own issues