Hello, how to establish SSL connect to Telegram service to send a message in group chat with bot? I used
AT+CIPSTART=“SSL”,“api.telegram.org”,443 but it says error.
When i send just AT+CIPSTART=“TCP”,“api.telegram.org”,443 it says CONNECT, but when i am trying to send data to server it says “400 The plain HTTP request was sent to HTTPS port”, I used AT+CIPSSLCCONF=2 also (1 and 0) - the same answer in both cases.
So, i would appreciate if you could show me the whole process - every step with AT commands how to connect via HTPPS of strong SSL connection (certificate, key exchange , cipher spec and so on)?