I have an ESP32 controlling my irrigation, outside on the wall in a plastic enclosure which has over the last few days started dropping off WiFi several times a day. It drops off for a few seconds and then comes back.
This behaviour coincides with me having migrated my HA to Proxmox and a slightly unusual heatwave here with temperatures going over 30 degC and not going down much at night.
I am not sure either of these would be causing this especially the move to Proxmox.
Also the WiFi signal is reported by the board as -77dB so not great.
I was thinking I could get a board with a socket for an external antenna but I can’t find one. Does anyone know if such a thing exists?