This is example for openHAB with MQTT
Dependencies: DHT MQTT WIZnetInterface mbed
Fork of w7500-paho-mqtt by
main.cpp@17:d07286cd2088, 2016-02-24 (annotated)
- Committer:
- kaizen
- Date:
- Wed Feb 24 00:00:20 2016 +0000
- Revision:
- 17:d07286cd2088
- Parent:
- 16:3bd1b60a8a21
changed interval
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
justinkim | 8:f837e0d255e8 | 1 | #include "mbed.h" |
bangbh | 9:21574e058141 | 2 | #include "DHT.h" |
bangbh | 9:21574e058141 | 3 | #include "MQTTEthernet.h" |
bangbh | 9:21574e058141 | 4 | #include "MQTTClient.h" |
justinkim | 8:f837e0d255e8 | 5 | |
justinkim | 8:f837e0d255e8 | 6 | #define ECHO_SERVER_PORT 7 |
justinkim | 8:f837e0d255e8 | 7 | |
bangbh | 9:21574e058141 | 8 | #include "mbed.h" |
bangbh | 9:21574e058141 | 9 | |
bangbh | 9:21574e058141 | 10 | int arrivedcount = 0; |
kaizen | 16:3bd1b60a8a21 | 11 | DigitalOut sw1(D9); |
kaizen | 16:3bd1b60a8a21 | 12 | DigitalOut sw2(D10); |
kaizen | 16:3bd1b60a8a21 | 13 | DigitalOut sw3(D11); |
bangbh | 9:21574e058141 | 14 | |
kaizen | 16:3bd1b60a8a21 | 15 | |
kaizen | 16:3bd1b60a8a21 | 16 | void sw1_messageArrived(MQTT::MessageData& md) |
justinkim | 8:f837e0d255e8 | 17 | { |
bangbh | 9:21574e058141 | 18 | MQTT::Message &message = md.message; |
kaizen | 16:3bd1b60a8a21 | 19 | printf("Message arrived: qos %d, retained %d, dup %d, packetid %d\r\n", message.qos, message.retained, message.dup, message.id); |
kaizen | 16:3bd1b60a8a21 | 20 | |
kaizen | 16:3bd1b60a8a21 | 21 | if( strncmp((char*)message.payload,"1",message.payloadlen) == 0 ){ |
kaizen | 16:3bd1b60a8a21 | 22 | sw1 = 1; |
kaizen | 16:3bd1b60a8a21 | 23 | } else{ |
kaizen | 16:3bd1b60a8a21 | 24 | sw1 = 0; |
kaizen | 16:3bd1b60a8a21 | 25 | } |
kaizen | 16:3bd1b60a8a21 | 26 | } |
kaizen | 16:3bd1b60a8a21 | 27 | |
kaizen | 16:3bd1b60a8a21 | 28 | void sw2_messageArrived(MQTT::MessageData& md) |
kaizen | 16:3bd1b60a8a21 | 29 | { |
kaizen | 16:3bd1b60a8a21 | 30 | MQTT::Message &message = md.message; |
kaizen | 16:3bd1b60a8a21 | 31 | printf("Message arrived: qos %d, retained %d, dup %d, packetid %d\r\n", message.qos, message.retained, message.dup, message.id); |
kaizen | 16:3bd1b60a8a21 | 32 | if( strncmp((char*)message.payload,"1",message.payloadlen) == 0 ){ |
kaizen | 16:3bd1b60a8a21 | 33 | sw2 = 1; |
kaizen | 16:3bd1b60a8a21 | 34 | } else{ |
kaizen | 16:3bd1b60a8a21 | 35 | sw2 = 0; |
kaizen | 16:3bd1b60a8a21 | 36 | } |
kaizen | 16:3bd1b60a8a21 | 37 | } |
kaizen | 16:3bd1b60a8a21 | 38 | |
kaizen | 16:3bd1b60a8a21 | 39 | void sw3_messageArrived(MQTT::MessageData& md) |
kaizen | 16:3bd1b60a8a21 | 40 | { |
kaizen | 16:3bd1b60a8a21 | 41 | MQTT::Message &message = md.message; |
kaizen | 16:3bd1b60a8a21 | 42 | printf("Message arrived: qos %d, retained %d, dup %d, packetid %d\r\n", message.qos, message.retained, message.dup, message.id); |
kaizen | 16:3bd1b60a8a21 | 43 | if( strncmp((char*)message.payload,"1",message.payloadlen) == 0 ){ |
kaizen | 16:3bd1b60a8a21 | 44 | sw3 = 1; |
kaizen | 16:3bd1b60a8a21 | 45 | } else{ |
kaizen | 16:3bd1b60a8a21 | 46 | sw3 = 0; |
kaizen | 16:3bd1b60a8a21 | 47 | } |
bangbh | 9:21574e058141 | 48 | } |
bangbh | 9:21574e058141 | 49 | |
bangbh | 9:21574e058141 | 50 | void baud(int baudrate) { |
bangbh | 9:21574e058141 | 51 | Serial s(USBTX, USBRX); |
bangbh | 9:21574e058141 | 52 | s.baud(baudrate); |
bangbh | 9:21574e058141 | 53 | } |
bangbh | 9:21574e058141 | 54 | |
bangbh | 9:21574e058141 | 55 | int main (void) |
bangbh | 9:21574e058141 | 56 | { |
bangbh | 9:21574e058141 | 57 | DHT sensor(D4, DHT11); |
kaizen | 17:d07286cd2088 | 58 | DigitalOut myled(LED1); |
kaizen | 17:d07286cd2088 | 59 | |
kaizen | 16:3bd1b60a8a21 | 60 | sw1 = 0; sw2 = 0; sw3 = 0; |
bangbh | 9:21574e058141 | 61 | baud(115200); |
justinkim | 8:f837e0d255e8 | 62 | printf("Wait a second...\r\n"); |
kaizen | 16:3bd1b60a8a21 | 63 | |
kaizen | 17:d07286cd2088 | 64 | |
kaizen | 17:d07286cd2088 | 65 | myled = 0; |
kaizen | 17:d07286cd2088 | 66 | |
bangbh | 9:21574e058141 | 67 | MQTTEthernet ipstack = MQTTEthernet(); |
kaizen | 16:3bd1b60a8a21 | 68 | printf("IP Address : %s\r\n",ipstack.getEth().getIPAddress()); |
bangbh | 9:21574e058141 | 69 | MQTT::Client<MQTTEthernet, Countdown> client = MQTT::Client<MQTTEthernet, Countdown>(ipstack); |
bangbh | 9:21574e058141 | 70 | |
kaizen | 17:d07286cd2088 | 71 | char* hostname = "192.168.1.213"; |
kaizen | 17:d07286cd2088 | 72 | printf("connect to %s\r\n",hostname); |
bangbh | 9:21574e058141 | 73 | int port = 1883; |
bangbh | 9:21574e058141 | 74 | |
bangbh | 9:21574e058141 | 75 | int rc = ipstack.connect(hostname, port); |
bangbh | 9:21574e058141 | 76 | if (rc != 0) |
kaizen | 16:3bd1b60a8a21 | 77 | { |
bangbh | 9:21574e058141 | 78 | printf("rc from TCP connect is %d\n", rc); |
kaizen | 16:3bd1b60a8a21 | 79 | return 0; |
kaizen | 16:3bd1b60a8a21 | 80 | } |
kaizen | 16:3bd1b60a8a21 | 81 | printf("TCP connection is successful\r\n"); |
bangbh | 9:21574e058141 | 82 | |
bangbh | 15:d4604c47da41 | 83 | char MQTTClientID[30]; |
justinkim | 8:f837e0d255e8 | 84 | |
bangbh | 9:21574e058141 | 85 | MQTTPacket_connectData data = MQTTPacket_connectData_initializer; |
bangbh | 9:21574e058141 | 86 | data.MQTTVersion = 3; |
bangbh | 15:d4604c47da41 | 87 | sprintf(MQTTClientID,"WIZwiki-W7500-client-%d",rand()%1000); |
bangbh | 15:d4604c47da41 | 88 | data.clientID.cstring = MQTTClientID; |
kaizen | 16:3bd1b60a8a21 | 89 | data.username.cstring = ""; |
kaizen | 16:3bd1b60a8a21 | 90 | data.password.cstring = ""; |
kaizen | 16:3bd1b60a8a21 | 91 | |
kaizen | 16:3bd1b60a8a21 | 92 | if ((rc = client.connect(data)) != 0) |
kaizen | 16:3bd1b60a8a21 | 93 | { |
kaizen | 16:3bd1b60a8a21 | 94 | printf("rc from MQTT connect is %d\r\n", rc); |
kaizen | 16:3bd1b60a8a21 | 95 | return 0; |
kaizen | 16:3bd1b60a8a21 | 96 | } |
kaizen | 16:3bd1b60a8a21 | 97 | printf("MQTT connection is successful\r\n"); |
bangbh | 9:21574e058141 | 98 | |
bangbh | 9:21574e058141 | 99 | |
kaizen | 16:3bd1b60a8a21 | 100 | char *sw1 = "/wiznet/sw1"; |
kaizen | 16:3bd1b60a8a21 | 101 | if ((rc = client.subscribe(sw1, MQTT::QOS1, sw1_messageArrived)) != 0) |
kaizen | 16:3bd1b60a8a21 | 102 | { |
kaizen | 16:3bd1b60a8a21 | 103 | printf("rc from MQTT subscribe is %d\r\n", rc); |
kaizen | 16:3bd1b60a8a21 | 104 | return 0; |
kaizen | 16:3bd1b60a8a21 | 105 | } |
kaizen | 16:3bd1b60a8a21 | 106 | printf("Added subscription for sw1\r\n"); |
kaizen | 16:3bd1b60a8a21 | 107 | |
kaizen | 16:3bd1b60a8a21 | 108 | char *sw2 = "/wiznet/sw2"; |
kaizen | 16:3bd1b60a8a21 | 109 | if ((rc = client.subscribe(sw2, MQTT::QOS1, sw2_messageArrived)) != 0) |
kaizen | 16:3bd1b60a8a21 | 110 | { |
kaizen | 16:3bd1b60a8a21 | 111 | printf("rc from MQTT subscribe is %d\r\n", rc); |
kaizen | 16:3bd1b60a8a21 | 112 | return 0; |
kaizen | 16:3bd1b60a8a21 | 113 | } |
kaizen | 16:3bd1b60a8a21 | 114 | printf("Added subscription for sw2\r\n"); |
kaizen | 16:3bd1b60a8a21 | 115 | |
kaizen | 16:3bd1b60a8a21 | 116 | char *sw3 = "/wiznet/sw3"; |
kaizen | 16:3bd1b60a8a21 | 117 | if ((rc = client.subscribe(sw3, MQTT::QOS1, sw3_messageArrived)) != 0) |
kaizen | 16:3bd1b60a8a21 | 118 | { |
kaizen | 16:3bd1b60a8a21 | 119 | printf("rc from MQTT subscribe is %d\r\n", rc); |
kaizen | 16:3bd1b60a8a21 | 120 | return 0; |
kaizen | 16:3bd1b60a8a21 | 121 | } |
kaizen | 16:3bd1b60a8a21 | 122 | printf("Added subscription for sw3\r\n"); |
kaizen | 16:3bd1b60a8a21 | 123 | |
bangbh | 9:21574e058141 | 124 | MQTT::Message message; |
bangbh | 9:21574e058141 | 125 | char buf[100]; |
bangbh | 9:21574e058141 | 126 | int error = 0; |
bangbh | 9:21574e058141 | 127 | float hum = 0.0f, temp = 0.0f; |
bangbh | 13:36456500fb7e | 128 | char i = 0; |
bangbh | 13:36456500fb7e | 129 | while (true) |
justinkim | 8:f837e0d255e8 | 130 | { |
bangbh | 13:36456500fb7e | 131 | if(i > 100) i = 0; |
bangbh | 9:21574e058141 | 132 | error = sensor.readData(); |
bangbh | 9:21574e058141 | 133 | if (0 == error) { |
bangbh | 9:21574e058141 | 134 | hum = sensor.ReadHumidity(); |
bangbh | 9:21574e058141 | 135 | temp = sensor.ReadTemperature(CELCIUS); |
justinkim | 8:f837e0d255e8 | 136 | } |
kaizen | 16:3bd1b60a8a21 | 137 | message.qos = MQTT::QOS1; |
bangbh | 9:21574e058141 | 138 | message.retained = false; |
bangbh | 9:21574e058141 | 139 | message.dup = false; |
bangbh | 13:36456500fb7e | 140 | |
bangbh | 13:36456500fb7e | 141 | sprintf(buf, "%3.1f", hum); |
bangbh | 9:21574e058141 | 142 | message.payload = (void*)buf; |
bangbh | 13:36456500fb7e | 143 | message.payloadlen = strlen(buf); |
kaizen | 16:3bd1b60a8a21 | 144 | rc = client.publish("/wiznet/humidity",message); |
kaizen | 16:3bd1b60a8a21 | 145 | printf("publish humidity data %s\r\n",(char*)message.payload); |
bangbh | 13:36456500fb7e | 146 | |
bangbh | 9:21574e058141 | 147 | sprintf(buf, "%3.1f", temp); |
bangbh | 9:21574e058141 | 148 | message.payload = (void*)buf; |
bangbh | 13:36456500fb7e | 149 | message.payloadlen = strlen(buf); |
kaizen | 16:3bd1b60a8a21 | 150 | rc = client.publish("/wiznet/temperature", message); |
kaizen | 16:3bd1b60a8a21 | 151 | printf("publish temperature data %s\r\n",(char*)message.payload); |
bangbh | 13:36456500fb7e | 152 | |
kaizen | 17:d07286cd2088 | 153 | client.yield(5000); |
justinkim | 8:f837e0d255e8 | 154 | } |
justinkim | 8:f837e0d255e8 | 155 | } |
justinkim | 8:f837e0d255e8 | 156 |