wemos d1 unstable about esp-rfid HOT 3 OPEN

Something I recalled from one of the other posted issues was about wifi fallback causing delays.

I was testing with it in AP mode but now that I've configured it to connect to my wifi it does seem a lot more stable

from esp-rfid.

@plex3r we've had similar issues as have others, our in service unit uses a nodemcu and we have test platforms on another nodemcu and on the mark 1 ESPRFID board... all give very poor performance in AP mode and in fallback mode either running really slow or causing reboots from the watchdog. Our normal in use machine works tolerably well (though again not without issues) when running in client mode. In order to keep the wifi for the RFID separate from the normal hackspace user wifi we have a RasPi setup as an AP and MQTT broker that the nodemcu connects to in client mode.

I noted a comment yesterday by @croggero in #615 that refers to #604 that might offer clues as to the problems that might be worth investigating
ooo-xxx

from esp-rfid.