force wifi scanning #45
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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.setScanMethodfor 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.