From what I can see and tested, the available communication modes of the power meters are as follows. This was tested on the latest firmware version (ATVi.75.98.68@MX1290).
|Plain text||Secure TLS|
|MQTT||MQTT - Yes||MQTTS - No|
|HTTP||HTTP - yes||HTTPS - only port 443|
So the only secure way to send data to a server on the internet is by using a raw TLS TCP socket. This is a custom protocol, so one will need to write your own server software.
Please add support for MQTTS and HTTPS so that we can use standard server software like Mosquitto, Apache, NGINX, etc. to send data securely via the internet.
PS: someone mentioned they got HTTPS working, but I was not able to do that - https://imeter.club/topic/471
- I stumbled upon a "hidden settings" document that mentions HTTPS will automatically be used if the port is 443 - and only 443.
Please refer to https://www.iammeter.com/newsshow/blog-fw-features#http-or-https
If you use https ,it only supports the port of 433 now.