force wifi scanning #46
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seems to work fine! i added it to our boilerplate project, soon it will make it into switch aswell... i will close your pr at that point. |
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The user Buger Dread has given good advice in the MakerBits group regarding the instability of the Wifi connection of an ESP32.
https://t.me/makerbits/20423
By default, the ESP32 scans for access points numerically. The first one is taken. However, the first one does not have to be good.
There is an extended command WiFi.setScanMethod for the ESP32 which forces a scan of all APs before an AP is selected.
https://github.com/espressif/arduino-esp32/blob/master/libraries/WiFi/src/WiFiSTA.cpp#L230
This must be done before the actual call WiFi.begin.
I tested the code change on a bitcoinSwitch and it worked.