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Rssi 6410/22/2023 It would be interesting if we can detect anything that is related to bad antenna matching, bad RF performance etc.Ģ.) Is there a possibility to debug/diagnose the link to the WiFi router in order to narrow down this problem? The WiFi-Network worked well with several smartphones of the local technicians.ġ.) Is there a possibility to diagnose the RF frontend with ESP32 internal functions, e.g. We have the option though to reprogram the device remotely via a raspberry pi with reverse SSH. The problems are hard to debug for us, because they only happen in the field and we also lack RF test equipment. We have several ideas why this could be (problems with the chip-antenna, placement of the device near metal/EMI sources, signal too strong and saturation RX-Stage, etc.). The internet connection is good and the ESP32 is in close vicinity to the router (hence the good RSSI). At some facilities we noticed very poor connection quality (ESP32 takes long to obtain IP, HTTP(S) requests timeout etc., sometimes connection fails altogether) despite having a good RSSI ( -9 to -20 mostly). We are working on a product (custom PCB, plain ESP32 IC) which does data logging in some remote electrical cabinets.
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