Hello everyone
I am working on the EC200U LTE module and connected to a server via a secure TLS connection and the WebSocket protocol. I set the module to buffer access mode. The problem I have encountered is that when I send data to the module via the server, the phrase +QSSLURC: “recv”,1 sometimes appears immediately and I read the data, sometimes it appears with a delay of a few minutes and very often it does not appear at all and I notice the data reception through the fast blinking of the Net Status LED. Also, sometimes neither +QSSLURC: “recv”,1 appears nor the Net Status LED blinks fast, in this case, if I send data from the server again, I receive the old data and the new data stuck together. The firmware version of the module is EC200AEUHAR01A21M16. I also tested the server via a Python program and it works correctly and the problems are in the module.
I would be grateful if you could guide me to solve the problem.
Regards
Mohammad
hi ，
Could you please tell me which model you are currently using, EC200U or EC200A? It is recommended that you first read the data in the buffer, and then send the data.
Sorry for my mistake. I meant EC200U and the version is EC200UEUAAR03A16M08
Do you mean when sending a packet, even if the input buffer is empty, I should read it again?
it doesn’t matter.
What I mean is to read the buffer completely first, and then send the data.