MQTT Client for Kakao IoT chatbot lecture.
Dependencies: DHT MQTT WIZnetInterface mbed
Fork of openHAB_mqtt_W7500 by
main.cpp
- Committer:
- bangbh
- Date:
- 2017-11-12
- Revision:
- 19:8f5ab618edd0
- Parent:
- 18:44a64786f3ca
File content as of revision 19:8f5ab618edd0:
#include "mbed.h" #include "DHT.h" #include "MQTTEthernet.h" #include "MQTTClient.h" #define ECHO_SERVER_PORT 7 #include "mbed.h" int arrivedcount = 0; DigitalOut sw1(PC_08); DigitalOut sw2(PC_09); DigitalOut sw3(PC_05); void sw1_messageArrived(MQTT::MessageData& md) { MQTT::Message &message = md.message; printf("Message arrived: qos %d, retained %d, dup %d, packetid %d\r\n", message.qos, message.retained, message.dup, message.id); if( strncmp((char*)message.payload,"1",message.payloadlen) == 0 ){ sw1 = 1; } else{ sw1 = 0; } } void sw2_messageArrived(MQTT::MessageData& md) { MQTT::Message &message = md.message; printf("Message arrived: qos %d, retained %d, dup %d, packetid %d\r\n", message.qos, message.retained, message.dup, message.id); if( strncmp((char*)message.payload,"1",message.payloadlen) == 0 ){ sw2 = 1; } else{ sw2 = 0; } } void sw3_messageArrived(MQTT::MessageData& md) { MQTT::Message &message = md.message; printf("Message arrived: qos %d, retained %d, dup %d, packetid %d\r\n", message.qos, message.retained, message.dup, message.id); if( strncmp((char*)message.payload,"1",message.payloadlen) == 0 ){ sw3 = 1; } else{ sw3 = 0; } } void baud(int baudrate) { Serial s(USBTX, USBRX); s.baud(baudrate); } int main (void) { sw1 = 0; sw2 = 0; sw3 = 0; baud(115200); printf("Wait a second...\r\n"); MQTTEthernet ipstack = MQTTEthernet(); printf("IP Address : %s\r\n",ipstack.getEth().getIPAddress()); MQTT::Client<MQTTEthernet, Countdown> client = MQTT::Client<MQTTEthernet, Countdown>(ipstack); char* hostname = "222.98.173.239"; printf("connect to %s\r\n",hostname); int port = 1883; int rc = ipstack.connect(hostname, port); if (rc != 0) { printf("rc from TCP connect is %d\n", rc); return 0; } printf("TCP connection is successful\r\n"); char MQTTClientID[30]; MQTTPacket_connectData data = MQTTPacket_connectData_initializer; data.MQTTVersion = 3; sprintf(MQTTClientID,"WIZwiki-W7500-client-%d",rand()%10000); data.clientID.cstring = MQTTClientID; data.username.cstring = "wiznetacademy"; data.password.cstring = "wiznet1324"; if ((rc = client.connect(data)) != 0) { printf("rc from MQTT connect is %d\r\n", rc); return 0; } printf("MQTT connection is successful\r\n"); char *sw1 = "light/control"; if ((rc = client.subscribe(sw1, MQTT::QOS0, sw1_messageArrived)) != 0) { printf("rc from MQTT subscribe is %d\r\n", rc); return 0; } printf("Added subscription for sw1\r\n"); char *sw2 = "boiler/control"; if ((rc = client.subscribe(sw2, MQTT::QOS0, sw2_messageArrived)) != 0) { printf("rc from MQTT subscribe is %d\r\n", rc); return 0; } printf("Added subscription for sw2\r\n"); char *sw3 = "radio/control"; if ((rc = client.subscribe(sw3, MQTT::QOS0, sw3_messageArrived)) != 0) { printf("rc from MQTT subscribe is %d\r\n", rc); return 0; } printf("Added subscription for sw3\r\n"); while (true) { client.yield(5000); } }