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MQTT Publish - Subscribe
Dependencies: EthernetInterface MQTT Servo mbed-rtos mbed
Fork of MQTTPublishSubcribe by
Diff: main.cpp
- Revision:
- 17:46dc5a8e143d
- Parent:
- 16:28d062c5522b
- Child:
- 18:a04f238cfc28
diff -r 28d062c5522b -r 46dc5a8e143d main.cpp --- a/main.cpp Mon Oct 06 11:42:25 2014 +0000 +++ b/main.cpp Mon Mar 16 14:50:54 2015 +0000 @@ -1,133 +1,61 @@ -/******************************************************************************* - * Copyright (c) 2014 IBM Corp. - * - * All rights reserved. This program and the accompanying materials - * are made available under the terms of the Eclipse Public License v1.0 - * and Eclipse Distribution License v1.0 which accompany this distribution. - * - * The Eclipse Public License is available at - * http://www.eclipse.org/legal/epl-v10.html - * and the Eclipse Distribution License is available at - * http://www.eclipse.org/org/documents/edl-v10.php. - * - * Contributors: - * Ian Craggs - initial API and implementation and/or initial documentation - *******************************************************************************/ - - /** - This is a sample program to illustrate the use of the MQTT Client library - on the mbed platform. The Client class requires two classes which mediate - access to system interfaces for networking and timing. As long as these two - classes provide the required public programming interfaces, it does not matter - what facilities they use underneath. In this program, they use the mbed - system libraries. - - */ - - -#include "C12832.h" -C12832 lcd(p5, p7, p6, p8, p11); - +/** MQTT Subscribe */ +#include "mbed.h" #include "MQTTEthernet.h" #include "MQTTClient.h" -int arrivedcount = 0; +// Topic's +char* topicLight = "mbed/k64f/iotkit/light"; +// MQTT Brocker +//char* hostname = "iot.eclipse.org"; +char* hostname = "192.168.178.70"; +int port = 1883; +// UI +DigitalOut led1( LED1 ); - -void messageArrived(MQTT::MessageData& md) +void messageArrived( MQTT::MessageData& md ) { MQTT::Message &message = md.message; - lcd.cls(); - lcd.locate(0,3); printf("Message arrived: qos %d, retained %d, dup %d, packetid %d\n", message.qos, message.retained, message.dup, message.id); - printf("Payload %.*s\n", message.payloadlen, (char*)message.payload); - ++arrivedcount; - lcd.puts((char*)message.payload); + printf("Payload %.*s\n", message.payloadlen, (char*) message.payload); } - -int main(int argc, char* argv[]) +int main() { + // Ethernet und MQTT initialisieren (muss in main erfolgen) MQTTEthernet ipstack = MQTTEthernet(); - float version = 0.47; - char* topic = "mbed-sample"; - - lcd.printf("Version is %f\n", version); - printf("Version is %f\n", version); - MQTT::Client<MQTTEthernet, Countdown> client = MQTT::Client<MQTTEthernet, Countdown>(ipstack); - char* hostname = "m2m.eclipse.org"; - int port = 1883; - lcd.printf("Connecting to %s:%d\n", hostname, port); + printf("Connecting to %s:%d\n", hostname, port); int rc = ipstack.connect(hostname, port); if (rc != 0) - lcd.printf("rc from TCP connect is %d\n", rc); + printf("rc from TCP connect is %d\n", rc); + // mit MQTT Broker verbinden MQTTPacket_connectData data = MQTTPacket_connectData_initializer; data.MQTTVersion = 3; data.clientID.cstring = "mbed-sample"; data.username.cstring = "testuser"; data.password.cstring = "testpassword"; - if ((rc = client.connect(data)) != 0) - lcd.printf("rc from MQTT connect is %d\n", rc); + rc = client.connect(data); + printf("rc from MQTT connect is %d\n", rc); - if ((rc = client.subscribe(topic, MQTT::QOS1, messageArrived)) != 0) - lcd.printf("rc from MQTT subscribe is %d\n", rc); - - MQTT::Message message; + rc = client.subscribe( topicLight, MQTT::QOS0, messageArrived ); + printf("rc from MQTT subscribe is %d\n", rc); - // QoS 0 - char buf[100]; - sprintf(buf, "Hello World! QoS 0 message from app version %f\n", version); - message.qos = MQTT::QOS0; - message.retained = false; - message.dup = false; - message.payload = (void*)buf; - message.payloadlen = strlen(buf)+1; - rc = client.publish(topic, message); - while (arrivedcount < 1) - client.yield(100); - - // QoS 1 - sprintf(buf, "Hello World! QoS 1 message from app version %f\n", version); - message.qos = MQTT::QOS1; - message.payloadlen = strlen(buf)+1; - rc = client.publish(topic, message); - while (arrivedcount < 2) - client.yield(100); - - // QoS 2 - sprintf(buf, "Hello World! QoS 2 message from app version %f\n", version); - message.qos = MQTT::QOS2; - message.payloadlen = strlen(buf)+1; - rc = client.publish(topic, message); - while (arrivedcount < 3) - client.yield(100); - - // n * QoS 2 - for (int i = 1; i <= 10; ++i) + while ( 1 ) { - sprintf(buf, "Hello World! QoS 2 message number %d from app version %f\n", i, version); - message.qos = MQTT::QOS2; - message.payloadlen = strlen(buf)+1; - rc = client.publish(topic, message); - while (arrivedcount < i + 3) - client.yield(100); + led1 = 0; + client.yield(1000); // MQTT Client darf empfangen + led1 = 1; + wait( 0.2 ); } - if ((rc = client.unsubscribe(topic)) != 0) + if ((rc = client.unsubscribe(topicLight)) != 0) printf("rc from unsubscribe was %d\n", rc); if ((rc = client.disconnect()) != 0) printf("rc from disconnect was %d\n", rc); ipstack.disconnect(); - - lcd.cls(); - lcd.locate(0,3); - lcd.printf("Version %.2f: finish %d msgs\n", version, arrivedcount); - printf("Finishing with %d messages received\n", arrivedcount); - return 0; }