No code showing how to send data to ThingSpeak MQTT server without Wifi

[v-c]

I saw this repo is linked from here: https://hackaday.io/project/167550-esp8266-publish-data-to-thingspeak-without-wi-fi

However, there is no code example showing how to send data over GPRS to ThingSpeak. Please add the code for this.

[IOT-MCU]

Hi， Update complete.

[dawidjar97]

Hi, when I try to use "AT+MQTTCONN" I always get "+CME ERROR: 53
". I tried every examples from this repo and hackaday project and always same issue.
Here is example AT command: AT+MQTTCONN="www.mqtt-dashboard.com",1883,"12345",120,0
Am I doing something wrong?

[vmencin]

Hi, I have the same problem as dawidjar97.
My AT command is: AT+MQTTCONN="mqtt.thingspeak.com",1883,"Channel ID",120,0,"UserID","Write API Key"
Tried almost everything with upper line but no success.
At+CSQ (Signal Quality) is above 20. I have mobile SIM card.

[sadamyne]

Hi, have you tryied to ping something to check if you are logged to the network?

[vmencin]

How can I ping with ESP-12S-A9-A9G-GPRS-Node-v1.0?
Is there a simple example to check if one is connected?
I have no problem uploading data to Thingspeak via WiFi but not via GPRS!.

[sadamyne]

AT+PING="xx.xx.xx.xx"