Azure IoT Hub - MQTT - Printable Version

Azure IoT Hub - MQTT - Printable Version

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+--- Thread: Azure IoT Hub - MQTT (/showthread.php?tid=1793)

Pages: 1 2

Azure IoT Hub - MQTT - FatMax - 17.12.2018

I'm trying to push data up to Azure IoT Hub and having some difficulties with the examples I've found on the forum and openrb.com so far.

Does anyone have an example for connecting to Azure IoT Hub with MQTT?

RE: Azure IoT Hub - MQTT - FatMax - 21.12.2018

So no-one has successfully managed a connection towards Azure IoT Hub with LM/SL via MQTT?

I've tried this:

http://openrb.com/mqtt-client/#codesyntax_1

But it doesn't give me any feedback what's wrong, nothing in error log. I'm also doubting it's running at all, as log in between code that should be executed doesn't give results. In Microsofts cloud there are no indications of a connection.

RE: Azure IoT Hub - MQTT - admin - 21.12.2018

Can you send client id, MQTT username and password via PM? Info on username/password format: https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-mqtt-support

RE: Azure IoT Hub - MQTT - FatMax - 10.01.2019

PM sent

RE: Azure IoT Hub - MQTT - admin - 10.01.2019

Thanks!

First, you need to update MQTT library packages:

New CPU:
https://dl.openrb.com/pkg/libmosquitto_1.4.15-1_imx6.ipk
https://dl.openrb.com/pkg/luamosquitto_0.3-2_imx6.ipk

Old CPU:
https://dl.openrb.com/pkg/libmosquitto_1.4.15-1_mxs.ipk
https://dl.openrb.com/pkg/luamosquitto_0.3-2_mxs.ipk

Here's a minimal example that you can use, don't forget to change device_id, broker, username and password parameters. You also need to upload azure.crt via FTP (using ftp username, upload to root directory). Certificate file contents: https://gist.github.com/jsopenrb/5873b203787ece0b1f12d5d6b950151f

Code:
device_id = 'DEV_TEST'

broker = 'DEV.azure-devices.net'

port = 8883

username = 'DEV.azure-devices.net/DEV_TEST'

password = 'SharedAccessSignature ...'

mqtt = require('mosquitto')

client = mqtt.new(device_id)

client.ON_CONNECT = function(...)

  log('ON_CONNECT', ...)

  client:publish('devices/' .. device_id .. '/messages/events/', '{id=456}')

end

client.ON_PUBLISH = function(...)

  log('ON_PUBLISH', ...)

end

client.ON_LOG = function(...)

  log('ON_LOG', ...)

end

client.ON_DISCONNECT = function(...)

  log('ON_DISCONNECT', ...)

end

client:version_set(mqtt.PROTOCOL_V311)

client:tls_set('/home/ftp/azure.crt')

client:login_set(username, password)

client:connect(broker, port)

while true do

  res, err, code = client:loop()

  if not res then

    log('loop error', res, err, code)

    os.sleep(1)

  end

end

RE: Azure IoT Hub - MQTT - FatMax - 10.01.2019

Wow, brilliant!

Thanks.

Sent one more PM.

RE: Azure IoT Hub - MQTT - FatMax - 11.01.2019

I have tested this and it works just as expected.

Thank you again for your kind help.

RE: Azure IoT Hub - MQTT - Duvan2127 - 04.02.2019

Thanks for the info

Can you give me information about how to load the azure.crt file?

Thank you

RE: Azure IoT Hub - MQTT - admin - 04.02.2019

Enable FTP server in System Config, then use ftp account and upload azure.crt to top level directory. Script has correct path set already.

RE: Azure IoT Hub - MQTT - Duvan2127 - 04.02.2019

(04.02.2019, 14:50)admin Wrote: Enable FTP server in System Config, then use ftp account and upload azure.crt to top level directory. Script has correct path set already.

regards

Sorry for the inconvenience. I can not load the azure.crt file in the directory

RE: Azure IoT Hub - MQTT - admin - 05.02.2019

You can save crt file via a script, run once.

Code:
crt = [[-----BEGIN CERTIFICATE-----

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-----END CERTIFICATE-----

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-----END CERTIFICATE-----

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Johw1+qRzT65ysCQblrGXnRl11z+o+I=

-----END CERTIFICATE-----]]

io.writefile('/home/ftp/azure.crt', crt)

RE: Azure IoT Hub - MQTT - Duvan2127 - 05.02.2019

regards

You can help me with the information required to send data to iot hub de azure. I'm using a logicmachine5 reactor to monitor variables related to electrical energy, I need to send and monitor them in the cloud.

Thank you

(05.02.2019, 07:38)administración Wrote: Puede guardar el archivo crt a través de un script, ejecútelo una vez.

Code:
crt = [[-----BEGIN CERTIFICATE----- MIIDdzCCAl+gAwIBAgIEAgAAuTANBgkqhkiG9w0BAQUFADBaMQswCQYDVQQGEwJJ RTESMBAGA1UEChMJQmFsdGltb3JlMRMwEQYDVQQLEwpDeWJlclRydXN0MSIwIAYD VQQDExlCYWx0aW1vcmUgQ3liZXJUcnVzdCBSb290MB4XDTAwMDUxMjE4NDYwMFoX DTI1MDUxMjIzNTkwMFowWjELMAkGA1UEBhMCSUUxEjAQBgNVBAoTCUJhbHRpbW9y ZTETMBEGA1UECxMKQ3liZXJUcnVzdDEiMCAGA1UEAxMZQmFsdGltb3JlIEN5YmVy VHJ1c3QgUm9vdDCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAKMEuyKr mD1X6CZymrV51Cni4eiVgLGw41uOKymaZN+hXe2wCQVt2yguzmKiYv60iNoS6zjr IZ3AQSsBUnuId9Mcj8e6uYi1agnnc+gRQKfRzMpijS3ljwumUNKoUMMo6vWrJYeK mpYcqWe4PwzV9/lSEy/CG9VwcPCPwBLKBsua4dnKM3p31vjsufFoREJIE9LAwqSu XmD+tqYF/LTdB1kC1FkYmGP1pWPgkAx9XbIGevOF6uvUA65ehD5f/xXtabz5OTZy dc93Uk3zyZAsuT3lySNTPx8kmCFcB5kpvcY67Oduhjprl3RjM71oGDHweI12v/ye jl0qhqdNkNwnGjkCAwEAAaNFMEMwHQYDVR0OBBYEFOWdWTCCR1jMrPoIVDaGezq1 BE3wMBIGA1UdEwEB/wQIMAYBAf8CAQMwDgYDVR0PAQH/BAQDAgEGMA0GCSqGSIb3 DQEBBQUAA4IBAQCFDF2O5G9RaEIFoN27TyclhAO992T9Ldcw46QQF+vaKSm2eT92 9hkTI7gQCvlYpNRhcL0EYWoSihfVCr3FvDB81ukMJY2GQE/szKN+OMY3EU/t3Wgx jkzSswF07r51XgdIGn9w/xZchMB5hbgF/X++ZRGjD8ACtPhSNzkE1akxehi/oCr0 Epn3o0WC4zxe9Z2etciefC7IpJ5OCBRLbf1wbWsaY71k5h+3zvDyny67G7fyUIhz ksLi4xaNmjICq44Y3ekQEe5+NauQrz4wlHrQMz2nZQ/1/I6eYs9HRCwBXbsdtTLS R9I4LtD+gdwyah617jzV/OeBHRnDJELqYzmp -----END CERTIFICATE----- -----BEGIN CERTIFICATE----- MIIDrzCCApegAwIBAgIQCDvgVpBCRrGhdWrJWZHHSjANBgkqhkiG9w0BAQUFADBh MQswCQYDVQQGEwJVUzEVMBMGA1UEChMMRGlnaUNlcnQgSW5jMRkwFwYDVQQLExB3 d3cuZGlnaWNlcnQuY29tMSAwHgYDVQQDExdEaWdpQ2VydCBHbG9iYWwgUm9vdCBD QTAeFw0wNjExMTAwMDAwMDBaFw0zMTExMTAwMDAwMDBaMGExCzAJBgNVBAYTAlVT MRUwEwYDVQQKEwxEaWdpQ2VydCBJbmMxGTAXBgNVBAsTEHd3dy5kaWdpY2VydC5j b20xIDAeBgNVBAMTF0RpZ2lDZXJ0IEdsb2JhbCBSb290IENBMIIBIjANBgkqhkiG 9w0BAQEFAAOCAQ8AMIIBCgKCAQEA4jvhEXLeqKTTo1eqUKKPC3eQyaKl7hLOllsB CSDMAZOnTjC3U/dDxGkAV53ijSLdhwZAAIEJzs4bg7/fzTtxRuLWZscFs3YnFo97 nh6Vfe63SKMI2tavegw5BmV/Sl0fvBf4q77uKNd0f3p4mVmFaG5cIzJLv07A6Fpt 43C/dxC//AH2hdmoRBBYMql1GNXRor5H4idq9Joz+EkIYIvUX7Q6hL+hqkpMfT7P T19sdl6gSzeRntwi5m3OFBqOasv+zbMUZBfHWymeMr/y7vrTC0LUq7dBMtoM1O/4 gdW7jVg/tRvoSSiicNoxBN33shbyTApOB6jtSj1etX+jkMOvJwIDAQABo2MwYTAO BgNVHQ8BAf8EBAMCAYYwDwYDVR0TAQH/BAUwAwEB/zAdBgNVHQ4EFgQUA95QNVbR TLtm8KPiGxvDl7I90VUwHwYDVR0jBBgwFoAUA95QNVbRTLtm8KPiGxvDl7I90VUw DQYJKoZIhvcNAQEFBQADggEBAMucN6pIExIK+t1EnE9SsPTfrgT1eXkIoyQY/Esr hMAtudXH/vTBH1jLuG2cenTnmCmrEbXjcKChzUyImZOMkXDiqw8cvpOp/2PV5Adg 06O/nVsJ8dWO41P0jmP6P6fbtGbfYmbW0W5BjfIttep3Sp+dWOIrWcBAI+0tKIJF PnlUkiaY4IBIqDfv8NZ5YBberOgOzW6sRBc4L0na4UU+Krk2U886UAb3LujEV0ls YSEY1QSteDwsOoBrp+uvFRTp2InBuThs4pFsiv9kuXclVzDAGySj4dzp30d8tbQk CAUw7C29C79Fv1C5qfPrmAESrciIxpg0X40KPMbp1ZWVbd4= -----END CERTIFICATE----- -----BEGIN CERTIFICATE----- MIIEMzCCAxugAwIBAgIDCYPzMA0GCSqGSIb3DQEBCwUAME0xCzAJBgNVBAYTAkRF MRUwEwYDVQQKDAxELVRydXN0IEdtYkgxJzAlBgNVBAMMHkQtVFJVU1QgUm9vdCBD bGFzcyAzIENBIDIgMjAwOTAeFw0wOTExMDUwODM1NThaFw0yOTExMDUwODM1NTha ME0xCzAJBgNVBAYTAkRFMRUwEwYDVQQKDAxELVRydXN0IEdtYkgxJzAlBgNVBAMM HkQtVFJVU1QgUm9vdCBDbGFzcyAzIENBIDIgMjAwOTCCASIwDQYJKoZIhvcNAQEB BQADggEPADCCAQoCggEBANOySs96R+91myP6Oi/WUEWJNTrGa9v+2wBoqOADER03 UAifTUpolDWzU9GUY6cgVq/eUXjsKj3zSEhQPgrfRlWLJ23DEE0NkVJD2IfgXU42 tSHKXzlABF9bfsyjxiupQB7ZNoTWSPOSHjRGICTBpFGOShrvUD9pXRl/RcPHAY9R ySPocq60vFYJfxLLHLGvKZAKyVXMD9O0Gu1HNVpK7ZxzBCHQqr0ME7UAyiZsxGsM lFqVlNpQmvH/pStmMaTJOKDfHR+4CS7zp+hnUquVH+BGPtikw8paxTGA6Eian5Rp /hnd2HN8gcqW3o7tszIFZYQ05ub9VxC1X3a/L7AQDcUCAwEAAaOCARowggEWMA8G A1UdEwEB/wQFMAMBAf8wHQYDVR0OBBYEFP3aFMSfMN4hvR5COfyrYyNJ4PGEMA4G A1UdDwEB/wQEAwIBBjCB0wYDVR0fBIHLMIHIMIGAoH6gfIZ6bGRhcDovL2RpcmVj dG9yeS5kLXRydXN0Lm5ldC9DTj1ELVRSVVNUJTIwUm9vdCUyMENsYXNzJTIwMyUy MENBJTIwMiUyMDIwMDksTz1ELVRydXN0JTIwR21iSCxDPURFP2NlcnRpZmljYXRl cmV2b2NhdGlvbmxpc3QwQ6BBoD+GPWh0dHA6Ly93d3cuZC10cnVzdC5uZXQvY3Js L2QtdHJ1c3Rfcm9vdF9jbGFzc18zX2NhXzJfMjAwOS5jcmwwDQYJKoZIhvcNAQEL BQADggEBAH+X2zDI36ScfSF6gHDOFBJpiBSVYEQBrLLpME+bUMJm2H6NMLVwMeni acfzcNsgFYbQDfC+rAF1hM5+n02/t2A7nPPKHeJeaNijnZflQGDSNiH+0LS4F9p0 o3/U37CYAqxva2ssJSRyoWXuJVrl5jLn8t+rSfrzkGkj2wTZ51xY/GXUl77M/C4K zCUqNQT4YJEVdT1B/yMfGchs64JTBKbkTCJNjYy6zltz7GRUUG3RnFX7acM2w4y8 PIWmawomDeCTmGCufsYkl4phX5GOZpIJhzbNi5stPvZR1FDUWSi9g/LMKHtThm3Y Johw1+qRzT65ysCQblrGXnRl11z+o+I= -----END CERTIFICATE-----]] io.writefile('/home/ftp/azure.crt', crt)

Gracias por la info

RE: Azure IoT Hub - MQTT - admin - 07.02.2019

Here'se a scheduled script that forms a JSON-encoded string with object values and then pushes them to Azure, then disconnects:

Code:
require('json')

data = json.encode({

  obj1 = grp.getvalue('32/1/1'),

  obj2 = grp.getvalue('32/1/2'),

})

device_id = 'DEV_TEST'

broker = 'DEV.azure-devices.net'

port = 8883

username = 'DEV.azure-devices.net/DEV_TEST'

password = 'SharedAccessSignature ...'

mqtt = require('mosquitto')

client = mqtt.new(device_id)

running = true

client.ON_CONNECT = function(stat, code, err)

  if stat then

    client:publish('devices/' .. device_id .. '/messages/events/', data)

  else

    log('mqtt connect error', err, code)

  end

  client:disconnect()

  running = false

end

client:version_set(mqtt.PROTOCOL_V311)

client:tls_set('/home/ftp/azure.crt')

client:login_set(username, password)

res, err = client:connect(broker, port)

if not res then

  log('mqtt initial connect error', err)

  running = false

end

if res then

  while running do

    res, err, code = client:loop()

    if not res then

      if running then

        log('mqtt loop error', err, code)

      end

      break

    end

  end

else

  log('mqtt connection failed', err)

end

RE: Azure IoT Hub - MQTT - Duvan2127 - 15.02.2019

(07.02.2019, 09:04)administración Wrote: Here'se a scheduled script that forms a JSON-encoded string with object values and then pushes them to Azure, then disconnects:

Code:
require('json') data = json.encode({ obj1 = grp.getvalue('32/1/1'), obj2 = grp.getvalue('32/1/2'), }) device_id = 'DEV_TEST' broker = 'DEV.azure-devices.net' port = 8883 username = 'DEV.azure-devices.net/DEV_TEST' password = 'SharedAccessSignature ...' mqtt = require('mosquitto') client = mqtt.new(device_id) running = true client.ON_CONNECT = function(stat, code, err) if stat then client:publish('devices/' .. device_id .. '/messages/events/', data) else log('mqtt connect error', err, code) end client:disconnect() running = false end client:version_set(mqtt.PROTOCOL_V311) client:tls_set('/home/ftp/azure.crt') client:login_set(username, password) res, err = client:connect(broker, port) if not res then log('mqtt initial connect error', err) running = false end if res then while running do res, err, code = client:loop() if not res then if running then log('mqtt loop error', err, code) end break end end else log('mqtt connection failed', err) end

thanks for the info

With this code I could not connect to azureiotcentral.

apps.azureiotcentral.com

RE: Azure IoT Hub - MQTT - admin - 16.02.2019

You need specify correct device_id, broker, username and password parameters. Follow this guide: https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-mqtt-support

RE: Azure IoT Hub - MQTT - andrepneves@gmail.com - 25.02.2019

Hi,

I'm having trouble to connect to IoTCentral too. Is it possible to use this to IoTCentral or just with IoTHub?

RE: Azure IoT Hub - MQTT - edgars - 26.02.2019

Duvan2127 has contacted Microsoft support in this matter. Here is a reply from MS. Maybe Duvan2127 can provide further comments or tests done for this?

Step 1 : Get Connection string from the tool. It will give to Hub name
Example

C:\Users\anhashia\AppData\Roaming\npm\node_modules\dps-keygen\bin\windows>dps_cstr 0ne000475B9 mydevice ********************

...

Registration Information received from service: iotc-3d8d214e-281d-454a-9c7d-259fd8bb49ed.azure-devices.net!
Connection String:
HostName=iotc-3d8d214e-281d-454a-9c7d-259fd8bb49ed.azure-devices.net;DeviceId=mydevice;SharedAccessKey=**************

Once you have connection string, you can put in IoT SDK and you are good to go,
https://docs.microsoft.com/en-us/azure/iot-hub/quickstart-send-telemetry-node#send-simulated-telemetry

Step 2: Fill below paraments from Step 1 Example.

broker: iotc-3d8d214e-281d-454a-9c7d-259fd8bb49ed.azure-devices.net
port : 8883
device_id: mydevice
username: iotc-3d8d214e-281d-454a-9c7d-259fd8bb49ed.azure-devices.net/mydevice/api-version=2016-11-14
password: This you will need to generate https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-devguide-security#security-tokens. It has code snippet.

[Image: ms_iotcentral_reply.png]

Step #5, you need to write code to generate SAS token.

RE: Azure IoT Hub - MQTT - FatMax - 01.05.2019

The certificate we use here. Does it need to renewed at some point, or is it permanent the way it is?

RE: Azure IoT Hub - MQTT - admin - 02.05.2019

One of the certificates in the chain is valid until 2025, others even more. You view certificate info here by pasting certificate data: https://www.sslshopper.com/certificate-decoder.html

RE: Azure IoT Hub - MQTT - FatMax - 02.05.2019

Ok - thank you for the info.

Have you developed any update mechanism on your end that you would like to share, or should we just write one ourselves?