Michael Baker / Cellular_HelloMQTT

Demo program for UBLOX cell modem using Nucleo-L073RZ

Dependencies:   C027_Support MQTT mbed-dev

Fork of Cellular_HelloMQTT by u-blox

main.cpp@19:dd4354386c96, 2017-01-27 (annotated)

Committer:
michaelVisimid
Date:
Fri Jan 27 00:14:30 2017 +0000
Revision:
19:dd4354386c96
Parent:
17:8a0680427384 
Switch to mbed-dev because the pre-compilied mbed libs do not work right.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
icraggs 1:a1d5c7a6acbc 1 /*******************************************************************************
icraggs 1:a1d5c7a6acbc 2 * Copyright (c) 2014 IBM Corp.
icraggs 1:a1d5c7a6acbc 3 *
icraggs 1:a1d5c7a6acbc 4 * All rights reserved. This program and the accompanying materials
icraggs 1:a1d5c7a6acbc 5 * are made available under the terms of the Eclipse Public License v1.0
icraggs 1:a1d5c7a6acbc 6 * and Eclipse Distribution License v1.0 which accompany this distribution.
icraggs 1:a1d5c7a6acbc 7 *
icraggs 1:a1d5c7a6acbc 8 * The Eclipse Public License is available at
icraggs 1:a1d5c7a6acbc 9 * http://www.eclipse.org/legal/epl-v10.html
icraggs 1:a1d5c7a6acbc 10 * and the Eclipse Distribution License is available at
icraggs 1:a1d5c7a6acbc 11 * http://www.eclipse.org/org/documents/edl-v10.php.
icraggs 1:a1d5c7a6acbc 12 *
icraggs 1:a1d5c7a6acbc 13 * Contributors:
icraggs 1:a1d5c7a6acbc 14 * Ian Craggs - initial API and implementation and/or initial documentation
icraggs 1:a1d5c7a6acbc 15 *******************************************************************************/
icraggs 2:638c854c0695 16
icraggs 2:638c854c0695 17 /**
icraggs 2:638c854c0695 18 This is a sample program to illustrate the use of the MQTT Client library
icraggs 2:638c854c0695 19 on the mbed platform. The Client class requires two classes which mediate
icraggs 2:638c854c0695 20 access to system interfaces for networking and timing. As long as these two
icraggs 2:638c854c0695 21 classes provide the required public programming interfaces, it does not matter
icraggs 2:638c854c0695 22 what facilities they use underneath. In this program, they use the mbed
icraggs 2:638c854c0695 23 system libraries.
icraggs 2:638c854c0695 24
icraggs 2:638c854c0695 25 */
icraggs 0:0cae29831d01 26 #include "mbed.h"
mazgch 8:b32c94be6522 27
mazgch 12:0ec1916059b5 28 //------------------------------------------------------------------------------------
mazgch 12:0ec1916059b5 29 // You need to configure these cellular modem / SIM parameters.
mazgch 12:0ec1916059b5 30 // These parameters are ignored for LISA-C200 variants and can be left NULL.
mazgch 12:0ec1916059b5 31 //------------------------------------------------------------------------------------
mazgch 12:0ec1916059b5 32 #include "MDM.h"
mazgch 12:0ec1916059b5 33 //! Set your secret SIM pin here (e.g. "1234"). Check your SIM manual.
mazgch 12:0ec1916059b5 34 #define SIMPIN NULL
michaelVisimid 17:8a0680427384 35 /*! The APN of your network operator SIM, sometimes it is "internet" check your
michaelVisimid 17:8a0680427384 36 contract with the network operator. You can also try to look-up your settings in
mazgch 12:0ec1916059b5 37 google: https://www.google.de/search?q=APN+list */
michaelVisimid 17:8a0680427384 38 #define APN "epc.tmobile.com"
mazgch 12:0ec1916059b5 39 //! Set the user name for your APN, or NULL if not needed
mazgch 8:b32c94be6522 40 #define USERNAME NULL
mazgch 12:0ec1916059b5 41 //! Set the password for your APN, or NULL if not needed
michaelVisimid 17:8a0680427384 42 #define PASSWORD NULL
mazgch 12:0ec1916059b5 43 //------------------------------------------------------------------------------------
icraggs 2:638c854c0695 44
mazgch 14:d495a85ed55b 45 #include "MQTTSocket.h"
icraggs 2:638c854c0695 46 #include "MQTTClient.h"
michaelVisimid 17:8a0680427384 47 DigitalOut myled(LED1);
icraggs 2:638c854c0695 48
icraggs 2:638c854c0695 49 int arrivedcount = 0;
mazgch 14:d495a85ed55b 50
mazgch 14:d495a85ed55b 51 void messageArrived(MQTT::MessageData& md)
icraggs 2:638c854c0695 52 {
mazgch 14:d495a85ed55b 53 MQTT::Message &message = md.message;
michaelVisimid 17:8a0680427384 54 printf("Message arrived: qos %d, retained %d, dup %d, packetid %d\r\n", message.qos, message.retained, message.dup, message.id);
michaelVisimid 17:8a0680427384 55 printf("Payload %.*s\r", message.payloadlen, (char*)message.payload);
icraggs 2:638c854c0695 56 ++arrivedcount;
icraggs 2:638c854c0695 57 }
mazgch 14:d495a85ed55b 58
mazgch 14:d495a85ed55b 59
icraggs 2:638c854c0695 60 int main(int argc, char* argv[])
icraggs 2:638c854c0695 61 {
michaelVisimid 17:8a0680427384 62
michaelVisimid 17:8a0680427384 63 printf("start\r\n");
michaelVisimid 17:8a0680427384 64 MDMSerial mdm(PC_10,PC_11);
mazgch 12:0ec1916059b5 65 //mdm.setDebug(4); // enable this for debugging issues
michaelVisimid 17:8a0680427384 66 printf("attempting to connect to network\r\n");
michaelVisimid 17:8a0680427384 67 if (!mdm.connect(SIMPIN, APN,USERNAME,PASSWORD)){
michaelVisimid 17:8a0680427384 68 printf("no connect\r\n");
michaelVisimid 17:8a0680427384 69 while(1) {
michaelVisimid 17:8a0680427384 70 myled = 1;
michaelVisimid 17:8a0680427384 71 wait(0.25);
michaelVisimid 17:8a0680427384 72 myled = 0;
michaelVisimid 17:8a0680427384 73 wait(0.25);
michaelVisimid 17:8a0680427384 74 }
michaelVisimid 17:8a0680427384 75 }
mazgch 14:d495a85ed55b 76
mazgch 14:d495a85ed55b 77 MQTTSocket ipstack = MQTTSocket();
mazgch 14:d495a85ed55b 78 float version = 0.47;
michaelVisimid 17:8a0680427384 79 char* topic = "HelloWorld";
mazgch 10:6f1c3b718b9c 80
michaelVisimid 17:8a0680427384 81 printf("Version is %f\r\n", version);
mazgch 10:6f1c3b718b9c 82
mazgch 14:d495a85ed55b 83 MQTT::Client<MQTTSocket, Countdown> client = MQTT::Client<MQTTSocket, Countdown>(ipstack);
mazgch 10:6f1c3b718b9c 84
mazgch 10:6f1c3b718b9c 85 char* hostname = "m2m.eclipse.org";
mazgch 10:6f1c3b718b9c 86 int port = 1883;
michaelVisimid 17:8a0680427384 87 printf("Connecting to %s:%d\r\n", hostname, port);
mazgch 10:6f1c3b718b9c 88 int rc = ipstack.connect(hostname, port);
mazgch 10:6f1c3b718b9c 89 if (rc != 0)
michaelVisimid 17:8a0680427384 90 printf("rc from TCP connect is %d\r\n", rc);
mazgch 10:6f1c3b718b9c 91
mazgch 10:6f1c3b718b9c 92 MQTTPacket_connectData data = MQTTPacket_connectData_initializer;
michaelVisimid 17:8a0680427384 93 data.MQTTVersion = 4;
michaelVisimid 17:8a0680427384 94 data.clientID.cstring = "MQTT_Test";
michaelVisimid 17:8a0680427384 95 if ((rc = client.connect(data)) != 0)
michaelVisimid 17:8a0680427384 96 printf("rc from MQTT connect is %d\n", rc);
mazgch 10:6f1c3b718b9c 97
michaelVisimid 17:8a0680427384 98 if ((rc = client.subscribe(topic, MQTT::QOS0, messageArrived)) != 0)
michaelVisimid 17:8a0680427384 99 printf("rc from MQTT subscribe is %d\r\n", rc);
mazgch 14:d495a85ed55b 100
mazgch 10:6f1c3b718b9c 101 MQTT::Message message;
mazgch 14:d495a85ed55b 102
mazgch 10:6f1c3b718b9c 103 // QoS 0
mazgch 10:6f1c3b718b9c 104 char buf[100];
michaelVisimid 17:8a0680427384 105 sprintf(buf, "Hello World! QoS 0 message from app version %f\r\n", version);
mazgch 10:6f1c3b718b9c 106 message.qos = MQTT::QOS0;
mazgch 10:6f1c3b718b9c 107 message.retained = false;
mazgch 10:6f1c3b718b9c 108 message.dup = false;
mazgch 10:6f1c3b718b9c 109 message.payload = (void*)buf;
mazgch 10:6f1c3b718b9c 110 message.payloadlen = strlen(buf)+1;
michaelVisimid 17:8a0680427384 111 rc = client.publish(topic, message);
mazgch 10:6f1c3b718b9c 112 while (arrivedcount == 0)
mazgch 10:6f1c3b718b9c 113 client.yield(100);
mazgch 8:b32c94be6522 114
mazgch 10:6f1c3b718b9c 115 // QoS 1
michaelVisimid 17:8a0680427384 116 sprintf(buf, "Hello World! QoS 1 message from app version %f\r\n", version);
mazgch 10:6f1c3b718b9c 117 message.qos = MQTT::QOS1;
mazgch 10:6f1c3b718b9c 118 message.payloadlen = strlen(buf)+1;
michaelVisimid 17:8a0680427384 119 rc = client.publish(topic, message);
mazgch 10:6f1c3b718b9c 120 while (arrivedcount == 1)
mazgch 10:6f1c3b718b9c 121 client.yield(100);
michaelVisimid 17:8a0680427384 122 /*
mazgch 10:6f1c3b718b9c 123 // QoS 2
michaelVisimid 17:8a0680427384 124 //todo configure server for QoS2
michaelVisimid 17:8a0680427384 125 sprintf(buf, "Hello World! QoS 2 message from app version %f\r\n", version);
mazgch 10:6f1c3b718b9c 126 message.qos = MQTT::QOS2;
mazgch 10:6f1c3b718b9c 127 message.payloadlen = strlen(buf)+1;
michaelVisimid 17:8a0680427384 128 rc = client.publish(topic, message);
mazgch 10:6f1c3b718b9c 129 while (arrivedcount == 2)
mazgch 10:6f1c3b718b9c 130 client.yield(100);
michaelVisimid 17:8a0680427384 131 */
mazgch 14:d495a85ed55b 132 if ((rc = client.unsubscribe(topic)) != 0)
michaelVisimid 17:8a0680427384 133 printf("rc from unsubscribe was %d\r\n", rc);
mazgch 10:6f1c3b718b9c 134
mazgch 14:d495a85ed55b 135 if ((rc = client.disconnect()) != 0)
michaelVisimid 17:8a0680427384 136 printf("rc from disconnect was %d\r\n", rc);
mazgch 14:d495a85ed55b 137
mazgch 14:d495a85ed55b 138 ipstack.disconnect();
mazgch 10:6f1c3b718b9c 139 mdm.disconnect();
mazgch 8:b32c94be6522 140 mdm.powerOff();
icraggs 2:638c854c0695 141
michaelVisimid 17:8a0680427384 142 printf("Version %.2f: finish %d msgs\r\n", version, arrivedcount);
michaelVisimid 17:8a0680427384 143 printf("Finishing with %d messages received\r\n", arrivedcount);
icraggs 2:638c854c0695 144
mazgch 14:d495a85ed55b 145 return 0;
michaelVisimid 17:8a0680427384 146 }
michaelVisimid 17:8a0680427384 147