Simple usage example of MQTTS library

Dependencies:   EthernetInterface MQTTS NTPClient SDFileSystem mbed-rtos mbed wolfSSL

Fork of HelloMQTT by MQTT

MQTT is light weight protocol for M2M, IoT. MQTTS adds TLS(SSL) security layer into the MQTT. This program shows simple usage example of MQTTS library.

Connect information has to be stored in SD file "connectInfo.txt", with following lines in it.

  • Host Name
  • User Name
  • Password
  • Client ID
  • Topic

The program asks following information on the terminal

  • Port Number to be connected. If the port is >8000 it assumes MQTTS.
  • Message to be published
  • Certificate file name, if MQTTS. Input file name on SD card. Simply Return key force it to no server verification. The program set up the realtime clock by NTP for certificate verification.

This program was tested with FRDM-K64F, against Sango MQTT server by Shiguredo. https://sango.shiguredo.jp/

References:

Files at this revision

API Documentation at this revision

Comitter:
wolfSSL
Date:
Sat Aug 01 20:50:27 2015 +0000
Parent:
19:3bf315cb74b4
Commit message:
Added QoS2

Changed in this revision

main.cpp Show annotated file Show diff for this revision Revisions of this file
diff -r 3bf315cb74b4 -r 0404c7f31c69 main.cpp
--- a/main.cpp	Mon Jul 27 01:38:23 2015 +0000
+++ b/main.cpp	Sat Aug 01 20:50:27 2015 +0000
@@ -23,7 +23,7 @@
  system libraries.
 
 */
-
+#define MQTTCLIENT_QOS2 1
 #include "MQTTEthernet.h"
 #include "MQTTClient.h"
 
@@ -181,9 +181,9 @@
     while (arrivedcount < 2)
         client.yield(100);
 
-#if 0 /* QoS 2 not tested */
+#if 1 /* QoS 2 not tested */
 // QoS 2
-    sprintf(buf, "\"%s\",  QoS 2 message from app version %f\n", version);
+    sprintf(buf, "\"%s\",  QoS 2 message from app version %f\n", msg, version);
     message.qos = MQTT::QOS2;
     message.payloadlen = strlen(buf)+1;
     rc = client.publish(topic, message);
@@ -193,7 +193,7 @@
 
 // n * QoS 2
     for (int i = 1; i <= 10; ++i) {
-        sprintf(buf, "\"%s\", QoS 2 message number %d from app version %f\n", i, version);
+        sprintf(buf, "\"%s\", QoS 2 message number %d from app version %f\n",msg,  i, version);
         message.qos = MQTT::QOS2;
         message.payloadlen = strlen(buf)+1;
         rc = client.publish(topic, message);