Connecting Tasmota to IBM cloud

[sush0408]

I was trying to connect Tasmota to IBM IOT platform but the problem is IBM cloud MQTT address is quite long and get snipped off from last.

Actual host address: "XXXXXX.messaging.internetofthings.ibmcloud.com"

after entering this into MQTT configuration the address gets wrong
"XXXXXX.messaging.internetofthings.ibmcloud.com" which is due to 32 char limitation of host address in tasmota firmware.

Is there any workaround to get it working or if anyone has ever connected Tasmota to IBM cloud please help!!

Regards Sushil

[ionciubotaru]

In settings.h try to change this line char mqtt_host[33]; to a greater value. Upload the new sketch, then send reset 2 via serial or web console, then try to connect to IBM cloud.

[sush0408]

Getting an Error in IBM Logs:

Closed connection from 14.139.194.12. The topic is not valid: iot-2/evt/status/fmt/json/LWT The topic does not match an allowed rule

[yozmag]

I'm having the same issue, did you solved it?

[lobradov]

So, that means you managed to connect but you have some other issue?

On Jan 28, 2018, at 10:35, Sushil Kumar Singh notifications@github.com wrote:

Getting an Error in IBM Logs:

Closed connection from 14.139.194.12. The topic is not valid: iot-2/evt/status/fmt/json/LWT The topic does not match an allowed rule

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[yozmag]

I just replaced the domain with the ipaddress, but the issue with the topic is very difficult IBM requires strict topic rules, like: Event topic format: iot-2/evt/event_id/fmt/format_string

define PUBLISH_TOPIC "iot-2/evt/status/fmt/json"

define SUBSCRIBE_TOPIC "iot-2/cmd/+/fmt/json"

Where the event_id specifies the event name that is shown in Watson IoT Platform, and format_string is the format of the event, such as JSON. Message format: JSON Watson IoT Platform supports several formats, such as JSON and text. From https://github.com/ibm-watson-iot/device-arduino/blob/master/samples/ESP8266MqttSecure/ESP8266MqttSecure.ino There is a an exemple String payload = "{\"d\":{\"myName\":\"ESP8266.Test5\",\"counter\":"; I don’t think this is doable with tasmota.

[miklik72]

I have the same problem with long hostname for IBM IoT Watson. It have 45 characters. When I increased char array to 50, Tasmota was not running in ESP and restarted by watchdog.

char mqtt_host[50]; // 1E9

update: I solvet long hostname by using CNAME with own domain.

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[stale[bot]]

This issue will be auto-closed because there hasn't been any activity for a few months. Feel free to open a new one if you still experience this problem.