Thank you so much for your support

The KooLru Library (https://github.com/KooLru/MySensors/tree/LGT8F) worked. It would be nice to have it included in the normal MySensors Library

@sebastieng Thanks for letting us and future readers know. -OSD

I like the joke : ) I'll try to keep it simple. Most of my sensors are just reporting temperature and humidity. Since I can assign them to a room in home assistant. They don't need anything fancy.

@mfalkvidd Yes, I understand that 253 is the software limit. I was wondering about the hardware limit. For example, my Asus router has a software limit of 253 devices. But when I get 20-25 WiFi devices trying to connect, the network goes haywire. (pun intended ) I am quite convinced that this is a hardware limitation of the router because the router has to carry some information about each connection. If the gateway is dumb, that is, carries no information about any connection, then it could truly have 253 connections. After a bit of contemplation, I realize that the name, gateway, implies this. If that is the case, it is good news for the DiY'er in that this very inexpensive and cheap hardware could stand in for a LoRaWAN, again, with a number of compromises.

You write "...clicking is heard..." Is that a single click or a click click click ...? After getting the LOW signal, wait a period of time and if it's still low, send the message that there is a flame. Likewise for a HIGH signal. Perhaps instead of a relay, an opto-isolator?

@jaydenlord Probably you do. If you leave the EN floating, electrical noise could cause it to enable or disable randomly. Some enable pin require a HIGH, some LOW. Connect it to VCC to see if it works more consistently. If it doesn't detect, connect it to GND. If one of these works, then the part wasn't designed to be in a default state of enable. Let us know your results (I found this video OSD