Conflict when using with pn532. about arduinowebsockets

[Links2004]

the WebSocketsClient only needs network no serial, SPI or any IO ports.

most likely the loop is blocked to long by the PN532 lib, and as a result the network connection timesout.

I recomand to check how often your loop is run.

[amichael04]

This issue puzzled me for a while. In the end it seems that calling if (NfcAdapter.tagPresent()) was blocking the thread too long.

To solve this issue, you need to utilise both ESP32 cores. This link was very useful for what I needed. I simply called websocket.loop() in one task and my readNFC() function in another.

NOTE: You MUST set the websocket task to have the priority tskIDLE_PRIORITY. Otherwise, your ESP will hit a boot loop due to it blocking freeRTOS tasks.