Gsm (Sim800) blynk connection issue

Need Help With My Project
1

I tried to use sim800 example on blynk and I am getting this issue. it seems it’s failing when trying to connect blynk.here is log. I also tried 8080 port. result is same. also I tried on local server and result same. can anyone had same issue ?

[9584] 
    ___  __          __
   / _ )/ /_ _____  / /__
  / _  / / // / _ \/  '_/
 /____/_/\_, /_//_/_/\_\
        /___/ v0.5.3 on Arduino

  Give Blynk a Github star! => https://github.com/blynkkk/blynk-library

[9592] Modem init...
[10817] Connecting to network...
[17499] Network: AVEA
[17499] Connecting to internet ...
[24263] Connected to GPRS
[24325] Connecting to blynk-cloud.com:80
[30235] Connecting to blynk-cloud.com:80
[36116] Connecting to blynk-cloud.com:80
[38978] Connecting to blynk-cloud.com:80
2

Well, for me it works very good. Can you check with another SIM? Preferably different operator.

3

which version of library and server ? I can connect my server with http client but I can’t connect my server from blynk. I don’t think due to operator but I will test when I found another operator sim.

4

Library 0.5.1,
TinyGSM 0.3.2,
Server 0.38.2 (and earlier)

5

ok i will try with your library version and let you know.

6

ok it seems problem about baud rate. 9600 isn’t enough for reliable commands. I changed sim module baud to 115200 and it seems problem solved

edit: if module power down but mcc still power up, blynk can’t handle connection again. is it just for me or did you tried that @marvin7 ?

7

Perhaps… Personally never tried baudrate that low.

8

Sorry,but I don’t get this scenario… If module is down, then what kind of connection handling you have in mind?

9

for example main mcu is esp8266 and gsm is sim800. mcu can’t connect again if gsm connection down.

10

If GSM/GPRS connection fails, it reconnects. On reboot of MCU I do have a power cycle of GSM modem programmed. But this all needs to be handled by code. Without handling reconnect only occurs when disconnected from server (in case of DDNS, for example)