On Node-Red and MQTT
Dependencies: mbed ESP8266Interface MbedJSONValue MQTT JSON
Diff: main.cpp
- Revision:
- 22:518ae39b6d77
- Parent:
- 21:f08f17225c7c
--- a/main.cpp Fri Mar 08 07:05:46 2019 +0000 +++ b/main.cpp Thu May 02 06:05:52 2019 +0000 @@ -1,228 +1,55 @@ #include "MQTTESP8266.h" #include "MQTTClient.h" #include "string.h" -#include "rgbled.h" #include "MbedJSONValue.h" char buf[100]; - -MQTTESP8266 ipstack(D1, D0, D10, "Sidsap10","Arduino111"); // change to match your wifi access point +//MQTTESP8266 ipstack(D1, D0, D10, "Sidsap10","Arduino111"); // change to match your wifi access point +MQTTESP8266 ipstack(D1, D0, D10, "BHNTG1682GFFE2","220960b5"); // change to match your wifi access point float version = 0.47; -char* topic = "k64"; -char* topic2 = "k64rec"; -char* topic3 = "bulb"; -char* key2 = "key"; -char* hostname = "192.168.43.87"; // Ip +char* topic = "toast"; +char* topic2 = "bread"; +char* hostname = "52.28.141.81";//"192.168.0.9";//";"192.168.43.87"; // Ip int port = 1883; int rc = ipstack.connect(hostname, port); -unsigned int previousTime = 0; // will store last time LED was updated - -// constants won't change: -const long interval = 20; -int flag =0; +AnalogIn ain(A0); MQTT::Client<MQTTESP8266, Countdown> client = MQTT::Client<MQTTESP8266, Countdown>(ipstack); //MbedJSONValue demo; -int arrivedcount = 0; //using namespace std; -std::string my_str; -std::string my_str2; std::string someString; -std::string clearsky ("clear"); -std::string clouds ("few clouds"); -std::string snow ("light snow"); -std::string automatic ("automatic"); -std::string manual ("manual"); -int j=0; -rgbled rgb(PTB22, PTE26, PTB21); // create rgb object with pin definitions for FRDM-K64F board +std::string substrings ("senddata"); // callback for subscribe topic void subscribeCallback(MQTT::MessageData& md) { - MQTT::Message &message = md.message; - printf("Message received: qos %d, retained %d, dup %d, packetid %d\r\n", message.qos, message.retained, message.dup, message.id); - - printf("%s",(char*)message.payload); - printf("\r\n"); - - printf("Payload %.*s\n", message.payloadlen, (char*)message.payload); - printf("nonedited payload is %s and payload is %d\r\n",(char*)message.payload,message.payloadlen); - - // int f = int(message.payload); - + MQTT::Message &message = md.message; std::string someString((char*)message.payload); someString.resize (message.payloadlen); - printf("Edited payload iss %s \r\n",someString.c_str()); - //j= someString.find(clouds); - //printf("j = %d \r\n", j); - - if ( !(someString.find(clouds)) ) - { - sprintf(buf, "dCglDR-G9WoQUiig0XMNhOV4ozIEIVu3rWdBh5IlQ7d,cloud %s\n", key2); - message.payload = (void*)buf; - message.payloadlen = strlen(buf)+1; - rc = client.publish(topic3, message); - printf("if condition checked, its cloudy\r\n"); - //rgb.set(red); - - } - else if ( !(someString.find(clearsky)) ) - { - sprintf(buf, "dCglDR-G9WoQUiig0XMNhOV4ozIEIVu3rWdBh5IlQ7d,clearsky %s\r\n", key2); + if ( !(someString.find(substrings)) ) + { sprintf(buf, "%6.4lf", ain.read()*100.0f); message.payload = (void*)buf; message.payloadlen = strlen(buf)+1; - rc = client.publish(topic3, message); - printf("if condition checked, its clear\r\n"); - - //rgb.set(yellow); - } - else if ( !(someString.find(snow)) ) - { - - sprintf(buf, "dCglDR-G9WoQUiig0XMNhOV4ozIEIVu3rWdBh5IlQ7d,snow %s\r\n",key2); - message.payload = (void*)buf; - message.payloadlen = strlen(buf)+1; - rc = client.publish(topic3, message); - printf("if condition checked, its snowy\r\n"); - - // rgb.set(blue); + rc = client.publish(topic, message); + printf("Publishing data to MQTT \r\n"); } - else if ( !(someString.find(automatic)) ) - { - - printf("Automatic, i.e Decide based on weather \r\n"); - flag = 0; - // rgb.set(blue); - } - else if ( !(someString.find(manual)) ) - { - - printf("Manual Flag set \r\n"); - flag = 1; - // rgb.set(blue); - } - else - { - printf("went into else\r\n"); - } - } - int main(int argc, char* argv[]) { wait (1); - printf("Starting\r\n"); - - set_time(1256729737); - time_t seconds = time(NULL); - previousTime = (unsigned int)seconds; - - + printf("Starting\r\n"); printf("Version is %f\r\n", version); - - rgb.active(false); // set led output to active low - rgb.set(none); // set led output of all off - - - if (rc != 0) printf("rc from TCP connect is %d\r\n", rc); - + if (rc == 0) + printf("K64 is online \r\n"); MQTTPacket_connectData data = MQTTPacket_connectData_initializer; - //data.MQTTVersion = 3; - //data.clientID.cstring = "mbed-clientID"; - //data.username.cstring = "testuser"; - //data.password.cstring = "testpassword"; - if ((rc = client.connect(data)) != 0) printf("rc from MQTT connect is %d\r\n", rc); - if ((rc = client.subscribe(topic2, MQTT::QOS1, subscribeCallback)) != 0) printf("Recv'd from MQTT subscribe is %d\r\n", rc); - - MQTT::Message message; // QoS 0 - - - sprintf(buf, "fa02d31610ce9ea0de15b22bb2fe279d, %s\r\n", key2); - message.qos = MQTT::QOS0; - message.retained = false; - message.dup = false; - message.payload = (void*)buf; - message.payloadlen = strlen(buf)+1; - - - rc = client.publish(topic, message); - wait(5); - - /* - sprintf(buf, "dCglDR-G9WoQUiig0XMNhOV4ozIEIVu3rWdBh5IlQ7d, %s\r\n", key2); - message.payload = (void*)buf; - message.payloadlen = strlen(buf)+1; - rc = client.publish(topic2, message); - */ - - while (arrivedcount < 10) - { client.yield(100); - - time_t seconds = time(NULL); - //printf("%u\r\n", (unsigned int)seconds); - wait(1); - if ( seconds - previousTime >= interval ) - { - if (flag ==0) - { - //printf("its been a few seconds \r\n"); - printf("Checking the weather\r\n"); - previousTime =seconds; - sprintf(buf, "fa02d31610ce9ea0de15b22bb2fe279d, %s\r\n", key2); - 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 (true) + { + client.yield(100); } - - - /* - // QoS 1 - sprintf(buf, "Hello World! QoS 1 message from app version %f\r\n", version); - message.qos = MQTT::QOS1; - message.payloadlen = strlen(buf)+1; - rc = client.publish(topic, message); - while (arrivedcount < 10) - client.yield(100); - - // QoS 2 - sprintf(buf, "Hello World! QoS 2 message from app version %f\r\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) { - sprintf(buf, "Hello World! QoS 2 message number %d from app version %f\r\n", i, version); - message.qos = MQTT::QOS2; - message.payloadlen = strlen(buf)+1; - rc = client.publish(topic, message); - while (arrivedcount < i + 3) - client.yield(100); - } - */ - - if ((rc = client.unsubscribe(topic)) != 0) - printf("rc from unsubscribe was %d\r\n", rc); - - if ((rc = client.disconnect()) != 0) - printf("rc from disconnect was %d\r\n", rc); - - //ipstack.disconnect(); - //printf("Finishing with %d messages received\r\n", arrivedcount); - - return 0; }