HelloMQTT over TLS.

Dependencies:   MQTT

Fork of HelloMQTT by Osamu Koizumi

HelloMQTT over TLS

This program is a fork of HelloMQTT. Added TLS capability by using TLSSocket library. Tested on K64F.

This sample program connects to iot.eclipse.org:8883 by default. Verifies server identification. Subscribes a certain topic. Then publishes three messages with different QoSs, i.e. QoS0, QoS1, and QoS2.

Warning

Some brokers do not accept QoS2 and/or QoS1 message. For example, AWS IoT Message Broker doesn't accept QoS2. In such broker, this program doesn't work as is. Change QoS level.

Output from console

HelloMQTT: version is 0.70

Opening network interface...
Network interface opened successfully.

Connecting to host iot.eclipse.org:8883 ...
Connection established.

MQTT client is trying to connect the server ...
Client connected.

Client is trying to subscribe a topic "mbed-test".
Client has subscribed a topic "mbed-test".

Client publishes messages ...
Publishing message QoS 0.
QoS 0 message published.
! Message arrived: qos 0, retained 0, dup 0, packetid 6257
! Payload Hello World!  QoS 0 message from app version 0.700000

Publishing message QoS 1.
QoS 1 message published.
! Message arrived: qos 1, retained 0, dup 0, packetid 1
! Payload Hello World!  QoS 1 message from app version 0.700000

Publishing message QoS 2.
QoS 2 message published.
! Message arrived: qos 2, retained 0, dup 0, packetid 2
! Payload Hello World!  QoS 2 message from app version 0.700000

Version 0.70: finish 3 msgs

Known Issues

On K64F, when serial baud rate is changed from 9600 to 115200, program fails.

Files at this revision

API Documentation at this revision

Comitter:
Osamu Koizumi
Date:
Fri Jun 15 00:34:21 2018 +0900
Parent:
42:c88d777f2e00
Commit message:
Updated TLSSocket library.

Changed in this revision

TLSSocket.lib Show annotated file Show diff for this revision Revisions of this file
--- a/TLSSocket.lib	Wed Jun 13 14:42:00 2018 +0900
+++ b/TLSSocket.lib	Fri Jun 15 00:34:21 2018 +0900
@@ -1,1 +1,1 @@
-https://github.com/coisme/TLSSocket/#c4f675b809d69680a18d1cb94f90646a1b415d19
+https://github.com/coisme/TLSSocket/#dd86c396c58a12f049b2bc0d62f4bd97aa2cd5d6