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I have just done a test:
Uploaded the code un altered from https://randomnerdtutorials.com/alexa-e ... more-53313
Connected a LED and resistor to GPIO14 (D5)
Found devices on the echo (Phillips lamps)
LED was already on
Told echo to turn lamp 2 on and LED goes off
Turn lamp off and LED comes on

I think it is always better to get the code working and then add or remove code as you have a good starting point.

Still, no joy. That code runs fine but the println statements are not triggering in the state machine.

I’ve just done the same but removed the rf functionality. I can’t get alexa to register the lamps.

Of course, I started with this, maybe removing the rf code, I wonder if I’ve removed something essential....

Bonzo wrote:I have just done a test:
Uploaded the code un altered from https://randomnerdtutorials.com/alexa-e ... more-53313
Connected a LED and resistor to GPIO14 (D5)
Found devices on the echo (Phillips lamps)
LED was already on
Told echo to turn lamp 2 on and LED goes off
Turn lamp off and LED comes on

I think it is always better to get the code working and then add or remove code as you have a good starting point.

My echo is new and all I have added to it is a Sinric skill which I used for the other Alexa code.

I have found two devices with this code; both "Royal Philips Electronics smart device". I had other fauxmo code I tried last weekend which didn't find a device. This code gave me a compile error but that was down to an old version of fauxmo and obviously that is not your problem as you can compile and upload your code.

This the output I am getting from the serial monitor:

[MAIN] Free heap: 49584 bytes
[MAIN] Free heap: 49080 bytes
[MAIN] Free heap: 49080 bytes
[MAIN] Device #1 (lamp two) state: ON value: 255
RELAY 2 switched by Alexa
[MAIN] Free heap: 49080 bytes
[MAIN] Device #1 (lamp two) state: OFF value: 255
RELAY 2 switched by Alexa
[MAIN] Free heap: 49080 bytes
[MAIN] Free heap: 49080 bytes
[MAIN] Free heap: 49080 bytes

I assume the registering of the lamps is not hardware dependant as I only have one LED connected. I am afraid I can not help further and just wanted to let you know the code will work All very frustrating.