Osamu Koizumi
HelloMQTT over TLS.
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.
Diff: MQTT.lib
- Revision:
- 8:a3e3113054a1
- Parent:
- 7:3de634f2d40c
- Child:
- 9:5beb8609e9f7
--- a/MQTT.lib Sun May 11 19:17:05 2014 +0000 +++ b/MQTT.lib Tue May 20 15:08:05 2014 +0000 @@ -1,1 +1,1 @@ -http://mbed.org/teams/mqtt/code/MQTT/#8b2abe9bd814 \ No newline at end of file +http://mbed.org/teams/mqtt/code/MQTT/#a4e3a97dabe3