IoTKitV3 / Mbed OS MQTTPublish

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Dependencies:   QEI MFRC522 HTS221 IoTKit BMP180 MQTT

Fork of MQTTPublish by smd.iotkit2.ch

main.cpp@25:5e982d03e7d1, 2018-09-09 (annotated)

Committer:
marcel1691
Date:
Sun Sep 09 11:56:38 2018 +0000
Revision:
25:5e982d03e7d1
Parent:
24:d2f0599798a1
Child:
26:cf9cf40c63ea
Abgestimmt mit lernkube

Who changed what in which revision?

UserRevisionLine numberNew contents of line
stefan1691 18:53d83febbe0a 1 /** MQTT Publish von Sensordaten */
stefan1691 17:719bb7709c80 2 #include "mbed.h"
marcel1691 21:4693a8b2a665 3 #include "HTS221Sensor.h"
marcel1691 20:88b9edbdf125 4 #include "easy-connect.h"
marcel1691 20:88b9edbdf125 5 #include "MQTTNetwork.h"
marcel1691 20:88b9edbdf125 6 #include "MQTTmbed.h"
icraggs 2:638c854c0695 7 #include "MQTTClient.h"
marcel1691 21:4693a8b2a665 8 #include "OLEDDisplay.h"
icraggs 2:638c854c0695 9
marcel1691 21:4693a8b2a665 10 static DevI2C devI2c(PTE0,PTE1);
marcel1691 21:4693a8b2a665 11 static HTS221Sensor hum_temp(&devI2c);
marcel1691 21:4693a8b2a665 12 AnalogIn hallSensor( PTC0 );
marcel1691 20:88b9edbdf125 13
stefan1691 18:53d83febbe0a 14 // Topic's
marcel1691 21:4693a8b2a665 15 char* topicTEMP = "iotkit/sensor";
marcel1691 21:4693a8b2a665 16 char* topicALERT = "iotkit/alert";
stefan1691 17:719bb7709c80 17 // MQTT Brocker
marcel1691 25:5e982d03e7d1 18 char* hostname = "192.168.3.10";
marcel1691 20:88b9edbdf125 19 int port = 31883;
stefan1691 17:719bb7709c80 20 // MQTT Message
stefan1691 17:719bb7709c80 21 MQTT::Message message;
stefan1691 17:719bb7709c80 22 // I/O Buffer
stefan1691 17:719bb7709c80 23 char buf[100];
marcel1691 24:d2f0599798a1 24
marcel1691 24:d2f0599798a1 25 // Klassifikation
marcel1691 24:d2f0599798a1 26 char cls[3][10] = { "low", "middle", "high" };
marcel1691 24:d2f0599798a1 27 int type = 0;
marcel1691 24:d2f0599798a1 28
stefan1691 17:719bb7709c80 29 // UI
marcel1691 21:4693a8b2a665 30 OLEDDisplay oled( PTE26, PTE0, PTE1);
marcel1691 20:88b9edbdf125 31 DigitalOut led1( D10 );
marcel1691 22:b671b01d00f9 32 DigitalOut alert( D13 );
icraggs 2:638c854c0695 33
stefan1691 17:719bb7709c80 34 /** Hilfsfunktion zum Publizieren auf MQTT Broker */
marcel1691 21:4693a8b2a665 35 void publish( MQTTNetwork &mqttNetwork, MQTT::Client<MQTTNetwork, Countdown> &client, char* topic )
stefan1691 17:719bb7709c80 36 {
marcel1691 21:4693a8b2a665 37 led1 = 1;
marcel1691 21:4693a8b2a665 38 printf("Connecting to %s:%d\r\n", hostname, port);
marcel1691 21:4693a8b2a665 39
marcel1691 20:88b9edbdf125 40 int rc = mqttNetwork.connect(hostname, port);
marcel1691 20:88b9edbdf125 41 if (rc != 0)
marcel1691 21:4693a8b2a665 42 printf("rc from TCP connect is %d\r\n", rc);
stefan1691 17:719bb7709c80 43
stefan1691 17:719bb7709c80 44 MQTTPacket_connectData data = MQTTPacket_connectData_initializer;
icraggs 6:e4c690c45021 45 data.MQTTVersion = 3;
icraggs 8:a3e3113054a1 46 data.clientID.cstring = "mbed-sample";
icraggs 12:086a9314e8a5 47 data.username.cstring = "testuser";
icraggs 12:086a9314e8a5 48 data.password.cstring = "testpassword";
marcel1691 20:88b9edbdf125 49 if ((rc = client.connect(data)) != 0)
marcel1691 21:4693a8b2a665 50 printf("rc from MQTT connect is %d\r\n", rc);
icraggs 2:638c854c0695 51
marcel1691 20:88b9edbdf125 52 MQTT::Message message;
marcel1691 20:88b9edbdf125 53
marcel1691 21:4693a8b2a665 54 oled.cursor( 2, 0 );
marcel1691 21:4693a8b2a665 55 oled.printf( "Topi: %s\n", topic );
marcel1691 21:4693a8b2a665 56 oled.cursor( 3, 0 );
marcel1691 21:4693a8b2a665 57 oled.printf( "Push: %s\n", buf );
icraggs 2:638c854c0695 58 message.qos = MQTT::QOS0;
icraggs 2:638c854c0695 59 message.retained = false;
icraggs 2:638c854c0695 60 message.dup = false;
stefan1691 17:719bb7709c80 61 message.payload = (void*) buf;
icraggs 2:638c854c0695 62 message.payloadlen = strlen(buf)+1;
marcel1691 21:4693a8b2a665 63 client.publish( topic, message);
icraggs 2:638c854c0695 64
stefan1691 17:719bb7709c80 65 // Verbindung beenden, ansonsten ist nach 4x Schluss
marcel1691 20:88b9edbdf125 66 if ((rc = client.disconnect()) != 0)
marcel1691 21:4693a8b2a665 67 printf("rc from disconnect was %d\r\n", rc);
marcel1691 20:88b9edbdf125 68
marcel1691 20:88b9edbdf125 69 mqttNetwork.disconnect();
marcel1691 21:4693a8b2a665 70 led1 = 0;
icraggs 0:0cae29831d01 71 }
stefan1691 17:719bb7709c80 72
stefan1691 17:719bb7709c80 73 /** Hauptprogramm */
stefan1691 17:719bb7709c80 74 int main()
stefan1691 17:719bb7709c80 75 {
marcel1691 21:4693a8b2a665 76 uint8_t id;
marcel1691 21:4693a8b2a665 77 float temp, hum;
marcel1691 22:b671b01d00f9 78 alert = 0;
marcel1691 21:4693a8b2a665 79
marcel1691 21:4693a8b2a665 80 oled.clear();
marcel1691 21:4693a8b2a665 81 oled.printf( "MQTTPublish\r\n" );
marcel1691 21:4693a8b2a665 82 oled.printf( "host: %s:%s\r\n", hostname, port );
marcel1691 20:88b9edbdf125 83
marcel1691 20:88b9edbdf125 84 NetworkInterface* network = easy_connect(true);
marcel1691 20:88b9edbdf125 85 if (!network)
marcel1691 20:88b9edbdf125 86 return -1;
marcel1691 20:88b9edbdf125 87
marcel1691 20:88b9edbdf125 88 // TCP/IP und MQTT initialisieren (muss in main erfolgen)
marcel1691 20:88b9edbdf125 89 MQTTNetwork mqttNetwork(network);
marcel1691 20:88b9edbdf125 90 MQTT::Client<MQTTNetwork, Countdown> client(mqttNetwork);
marcel1691 21:4693a8b2a665 91
marcel1691 21:4693a8b2a665 92 /* Init all sensors with default params */
marcel1691 21:4693a8b2a665 93 hum_temp.init(NULL);
marcel1691 21:4693a8b2a665 94 hum_temp.enable();
stefan1691 17:719bb7709c80 95
stefan1691 17:719bb7709c80 96 while ( 1 )
stefan1691 17:719bb7709c80 97 {
marcel1691 21:4693a8b2a665 98 // Temperator und Luftfeuchtigkeit
marcel1691 21:4693a8b2a665 99 hum_temp.read_id(&id);
marcel1691 21:4693a8b2a665 100 hum_temp.get_temperature(&temp);
marcel1691 21:4693a8b2a665 101 hum_temp.get_humidity(&hum);
marcel1691 24:d2f0599798a1 102 if ( type == 0 )
marcel1691 24:d2f0599798a1 103 temp -= 5.0f;
marcel1691 24:d2f0599798a1 104 else if ( type == 2 )
marcel1691 24:d2f0599798a1 105 temp += 5.0f;
marcel1691 24:d2f0599798a1 106 sprintf( buf, "0x%X,%2.2f,%2.1f,%s", id, temp, hum, cls[type] );
marcel1691 24:d2f0599798a1 107 type++;
marcel1691 24:d2f0599798a1 108 if ( type > 2 )
marcel1691 24:d2f0599798a1 109 type = 0;
marcel1691 21:4693a8b2a665 110 publish( mqttNetwork, client, topicTEMP );
marcel1691 21:4693a8b2a665 111
marcel1691 21:4693a8b2a665 112 // alert Tuer offen
marcel1691 23:4d8f3061890e 113 printf( "Hall %4.4f, alert %d\n", hallSensor.read(), alert.read() );
marcel1691 21:4693a8b2a665 114 if ( hallSensor.read() > 0.6f )
marcel1691 21:4693a8b2a665 115 {
marcel1691 22:b671b01d00f9 116 // nur einmal Melden!, bis Reset
marcel1691 23:4d8f3061890e 117 if ( alert.read() == 0 )
marcel1691 22:b671b01d00f9 118 {
marcel1691 24:d2f0599798a1 119 sprintf( buf, "alert: hall" );
marcel1691 22:b671b01d00f9 120 message.payload = (void*) buf;
marcel1691 22:b671b01d00f9 121 message.payloadlen = strlen(buf)+1;
marcel1691 22:b671b01d00f9 122 publish( mqttNetwork, client, topicALERT );
marcel1691 22:b671b01d00f9 123 alert = 1;
marcel1691 22:b671b01d00f9 124 }
marcel1691 21:4693a8b2a665 125 }
marcel1691 22:b671b01d00f9 126 else
marcel1691 22:b671b01d00f9 127 alert = 0;
marcel1691 21:4693a8b2a665 128 wait ( 2.0f );
stefan1691 17:719bb7709c80 129 }
stefan1691 17:719bb7709c80 130 }