Re: [paho-dev] MQTT and AT COMMANDS

["James Sutton1" <james.sutton@xxxxxxxxxx>]

Hi Michell,

 

Every mobile module is slightly different and the AT commands may vary slightly, I recommend taking a look at the AT command documentation for the specific module (I had a look at the Quectel website, but it looks like you need to be a distributor to get documentation).

 

What you basically need to do though is use the AT commands to open a TCP socket to the server, you can then send data over serial which will be sent to the broker.

 

This example here might help: https://vsblogs.wordpress.com/2013/11/28/tcp-connection-over-gprs-using-sim900-and-at-commands/

 

In order to do this, you'll probably need to create a bespoke Network class that you provide to the MqttClient that can manage the conversion between send and receive to the relevant combination of AT commands / Serial support. Ian Craggs has written a good blog post that explains this in a bit more detail here: http://modelbasedtesting.co.uk/?p=131

 

Kind regards,

 

James Sutton
Software Engineer - IoT Foundation - MQTT Open Source Projects
Ops Team - Wimbledon Project

Phone: 01962 815438 | Extension: x372454 E-mail: james.sutton@xxxxxxxxxx Personal Website: www.jsutton.co.uk Find me on:	Hursley Park Hursley, SO212JN United Kingdom

 

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----- Original message -----
From: Michell Castaño <mcastano@xxxxxxxxxxxx>
Sent by: paho-dev-bounces@xxxxxxxxxxx
To: Mike Tran <miketran@xxxxxxxxxx>
Cc: paho-dev@xxxxxxxxxxx, paho-dev-request@xxxxxxxxxxx
Subject: [paho-dev] MQTT and AT COMMANDS
Date: Tue, Oct 4, 2016 11:02 PM
 

Hi, Mike 

Hi Group

 

Best Regards

 

I've a questions about the way of connect, publish and subscript with the MQTT Embedded Library with a Quectel Module (AT COMMANDS) and an Atmega Microcontroller. Do you have any idea about it?.

 

Thanks for all,

Greetings from Colombia.

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