DPS using MQTT direct method

Question

DPS using MQTT direct method

Akhil joy 21

Hai,

I'm using MQTTBox for testing the device to cloud connection. I have registered on Azure. I try to establish a connection to the cloud using MQTTBox. But Connection error is shown on there.

Host =iothubhostname

username={iothubhostname}/RIOD_GREECE_TEST1/api-version=2016-11-14

client id=RIOD_GREECE_TEST1

password =SAS token generated using "visual studio code"(using shared access policies)

it has been saying connection error

is the parameters are correct?

is there is any other method for generating a password? with example?

António Sérgio Azevedo 7,671 Reputation points Microsoft Employee Moderator

2020-08-11T05:11:30.4+00:00

Thanks for your question @Akhil joy . Let me setup MQTTBox on my Windows machine to test it.
In the meantime I can notice that your username may be incorrect. As described here "Using the MQTT protocol directly (as a device)":
QuantumCache 20,681 Reputation points Moderator

2020-08-19T01:22:12.91+00:00

Hello @Akhil joy , Just checking back, could you please let us know if you need further help in this matter.
QuantumCache 20,681 Reputation points Moderator

2020-08-27T00:48:26.057+00:00

Hello @Akhil joy , Just checking back, could you please let us know if you need further help in this matter.Please accept the below helpful response as 'Answer', which will be helpful to others as well with similar question, so that we can close this thread.
QuantumCache 20,681 Reputation points Moderator

2020-09-01T02:23:05.46+00:00

Hello @Akhil joy , Please accept helpful responses as 'Answer', which will be helpful to others as well with similar question.

1 answer

Your answer

António Sérgio Azevedo 7,671 Reputation points Microsoft Employee Moderator

2020-08-11T05:11:30.4+00:00

Thanks for your question @Akhil joy . Let me setup MQTTBox on my Windows machine to test it.
In the meantime I can notice that your username may be incorrect. As described here "Using the MQTT protocol directly (as a device)":
QuantumCache 20,681 Reputation points Moderator

2020-08-19T01:22:12.91+00:00

Hello @Akhil joy , Just checking back, could you please let us know if you need further help in this matter.
QuantumCache 20,681 Reputation points Moderator

2020-08-27T00:48:26.057+00:00

Hello @Akhil joy , Just checking back, could you please let us know if you need further help in this matter.Please accept the below helpful response as 'Answer', which will be helpful to others as well with similar question, so that we can close this thread.
QuantumCache 20,681 Reputation points Moderator

2020-09-01T02:23:05.46+00:00

Hello @Akhil joy , Please accept helpful responses as 'Answer', which will be helpful to others as well with similar question.

Answer 1

QuantumCache 20,681 Moderator

Hello @Akhil joy , Thanks for reaching out to us!

Here is my MQTTbox connection how I am connecting to IoTHub and sending messages..

Please verify your IoT Hub Host name and use only one MQTTbox connection at a time.

The right host should be the fully qualified name: sabiothub.azure-devices.net

• MQTT Connection Name - This is any name that you want to give the connection, only visible in MQTTBox.
• MQTT Client ID - This is the Azure IoT Device name from above.
• Host - This is the Azure IoT Hub URI, and we will need to modify this a little bit. The entire connection string should look like:
{IoT Hub Name}.azure-devices.net/$iothub/websocket
Or
{IoT Hub Name}.azure-devices.net
• Username - is the FQDN name of the IoT Device, with some additional information. It should look like the following:
{IoT Hub Name}.azure-devices.net/{Device Name}/?api-version=2018-06-30
• Password - is the SAS token that was generated from above.
Example: SharedAccessSignature sr=sabiothub.azure-devices.net%2Fdevices%2Freadyiotedgevm&sig=%Fo4Gty07ww%3D&se=1598
• Append timestamp to MQTT client id -This should be set to "No".
• SSL/TLS Version - This should be set to Auto.
• Will - QoS - This should be set to 1
• SSL/TSL Certificate Type - This should be set to CA signed server certificate.

I have included the image which gives all details on MQTTBox.

Connection Over:

Sending messages from MQTTBox to cloud:

QuantumCache 20,681 Reputation points Moderator

2020-08-13T20:27:51.473+00:00

Hello @Akhil joy ,Just checking back, could you please let us know if you need further help in this matter.
QuantumCache 20,681 Reputation points Moderator

2020-08-14T04:29:52.313+00:00

Hello @Akhil joy , Here is another way to generate the SAS token via Azure Device Explorer tool:

We can quickly make use of the Device Explorer tool. Make use of SetupDeviceExplorer.msi located at the bottom of the page.

Open the tool, Update with your IoT Hub Connection string

Go to the Management tab, select your Device from the list, and click the SAS Token button.

Pop up window opens and then select your device + number of days of validity, and then click Generate button.
QuantumCache 20,681 Reputation points Moderator

2020-08-17T18:43:30.113+00:00

Hello @Akhil joy , Just checking back, could you please let us know if you need further help in this matter.
QuantumCache 20,681 Reputation points Moderator

2020-08-20T05:28:47.773+00:00

Hello @Akhil joy , Just checking back, could you please let us know if you need further help in this matter. Please accept helpful responses as 'Answer', which will be helpful to others as well with similar question.
Goddeti Dhanasekhara Reddy 20 Reputation points

2023-05-31T09:43:40.7666667+00:00

Hi, can i use this same process to connect MQTT Box to Azure IoT Central

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DPS using MQTT direct method

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