iot_water_monitor_v2
Dependencies: easy-connect-v16 Watchdog FP MQTTPacket RecordType-v-16 watersenor_and_temp_code
Diff: Simple-MQTT/SimpleMQTT.h
- Revision:
- 20:100d321e334b
diff -r fbc21a964938 -r 100d321e334b Simple-MQTT/SimpleMQTT.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Simple-MQTT/SimpleMQTT.h Tue Dec 26 14:35:19 2017 +0000 @@ -0,0 +1,252 @@ +#ifndef __SIMPLEMQTT_H__ +#define __SIMPLEMQTT_H__ + +/*************************************************************** + * Includes + ***************************************************************/ +#include "easy-connect.h" +#include "MQTTClient.h" +#include "NDefLib/NDefNfcTag.h" +#include "NDefLib/RecordType/RecordURI.h" +#include "MQTTNetwork.h" +#include "MQTTmbed.h" + +/*************************************************************** + * Definitions + ***************************************************************/ + // Configuration values needed to connect to IBM IoT Cloud +#define ORG MQTT_ORG_ID // connect to ORG.internetofthings.ibmcloud.com/ For a registered connection, replace with your org +#define ID MQTT_DEVICE_ID // For a registered connection is your device id +#define AUTH_TOKEN MQTT_DEVICE_PASSWORD // For a registered connection is a device auth-token +#define DEFAULT_TYPE_NAME MQTT_DEVICE_TYPE // For a registered connection is device type +#define AUTH_METHOD MQTT_USERNAME + +#define TYPE DEFAULT_TYPE_NAME // For a registered connection, replace with your type +#define IBM_IOT_PORT MQTT_PORT + +#define MQTT_MAX_PACKET_SIZE 400 +#define MQTT_MAX_PAYLOAD_SIZE 300 + +/*************************************************************** + * Variables + ***************************************************************/ +char *projectName = "WaterMonitor"; +static char id[30] = ID; // mac without colons +static char org[12] = ORG; +static char type[30] = TYPE; +static char auth_token[30] = AUTH_TOKEN; // Auth_token is only used in non-quickstart mode +static int connack_rc = 0; // MQTT connack return code +static bool netConnecting = false; +static bool mqttConnecting = false; +static bool netConnected = false; +static bool connected = false; +static int retryAttempt = 0; +static int connectTimeout = 1000; +uint16_t commandID = 0; +static char subscription_url[MQTT_MAX_PAYLOAD_SIZE]; + +/*************************************************************** + * Unity function definitions + ***************************************************************/ +/** brief Callback function when MQTT message arrives + * param[in] msgMQTT + * retral None + */ +void MQTT_SubscribeCallback(MQTT::MessageData & msgMQTT); + +/** brief Subscribe to a MQTT topic and set the MQTT callback function + * param[in] subscribeTopic Topic to be subscribed + * param[in] client MQTT client + * retral returnCode from MQTTClient.h + */ +int MQTT_Subscribe(char *subscribeTopic, MQTT::Client<MQTTNetwork, Countdown, MQTT_MAX_PACKET_SIZE>* client); + +/** brief Connect to the internet then the MQTT network + * param[in] client MQTT client + * param[in] mqttNetwork MQTT network + * param[in] network The internet network interface (ethernet, wifi...) + * retral Internet connect result and returnCode from MQTTClient.h + */ +int MQTT_Connect(MQTT::Client<MQTTNetwork, Countdown, MQTT_MAX_PACKET_SIZE>* client, MQTTNetwork *mqttNetwork, NetworkInterface* network); + +/** brief Setup the number of attempt to re-connect to the internet + * param[in] attemptNumber The number of attemp + */ +int MQTT_GetConnTimeout(int attemptNumber); +void MQTT_AttemptConnect(MQTT::Client<MQTTNetwork, Countdown, MQTT_MAX_PACKET_SIZE>* client, MQTTNetwork *mqttNetwork, NetworkInterface* network); + +/** brief Connect to the internet then the MQTT network + * param[in] client MQTT client + * param[in] inputTime The time when the data is attempt to be sent + * param[in] adcVal_0 The ADC value to be sent + * retral returnCode from MQTTClient.h + */ +int MQTT_PublishADC(MQTT::Client<MQTTNetwork, Countdown, MQTT_MAX_PACKET_SIZE>* client, time_t inputTime, float adcVal_0); + +/** brief Connect to the internet then the MQTT network + * param[in] client MQTT client + * param[in] inputTime The time when the data is attempt to be sent + * param[in] relay1 Relay 1 state + * param[in] relay2 Relay 2 state + * retral returnCode from MQTTClient.h + */ +int MQTT_PublishRelayState(MQTT::Client<MQTTNetwork, Countdown, MQTT_MAX_PACKET_SIZE>* client, time_t inputTime, int relay1, int relay2); + +/*************************************************************** + * Unity function declarations + ***************************************************************/ +void MQTT_SubscribeCallback(MQTT::MessageData & msgMQTT) { + char msg[MQTT_MAX_PAYLOAD_SIZE]; + msg[0]='\0'; + strncat (msg, (char*)msgMQTT.message.payload, msgMQTT.message.payloadlen); + printf ("--->>> MQTT_SubscribeCallback msg: %s\n\r", msg); +} + +int MQTT_Subscribe(char *subscribeTopic, MQTT::Client<MQTTNetwork, Countdown, MQTT_MAX_PACKET_SIZE>* client) { + return client->subscribe(subscribeTopic, MQTT::QOS1, MQTT_SubscribeCallback); +} + +int MQTT_Connect(MQTT::Client<MQTTNetwork, Countdown, MQTT_MAX_PACKET_SIZE>* client, MQTTNetwork *mqttNetwork, NetworkInterface* network) { + const char* iot_ibm = MQTT_BROKER_URL; + char hostname[strlen(org) + strlen(iot_ibm) + 1]; + + sprintf(hostname, "%s%s", org, iot_ibm); + // Construct clientId - d:org:type:id + char clientId[strlen(org) + strlen(type) + strlen(id) + 5]; + sprintf(clientId, "d:%s:%s:%s", org, type, id); + sprintf(subscription_url, "%s.%s/#/device/%s/%s/", org, "internetofthings.ibmcloud.com", id, DEFAULT_TYPE_NAME); + + // Network debug statements + LOG("=====================================\n\r"); + LOG("Nucleo IP ADDRESS: %s\n\r", network->get_ip_address()); + LOG("Nucleo MAC ADDRESS: %s\n\r", network->get_mac_address()); + LOG("Server Hostname: %s port: %d\n\r", hostname, IBM_IOT_PORT); + LOG("Client ID: %s\n\r", clientId); + LOG("Topic: %s\n\r",MQTT_EVENT_TOPIC); + LOG("Subscription URL: %s\n\r", subscription_url); + LOG("=====================================\n\r"); + netConnecting = true; + int rc = mqttNetwork->connect(hostname, IBM_IOT_PORT); + if (rc != 0) { + printf("rc from TCP connect is %d\r\n", rc); + return rc; + } + + printf ("--->TCP Connected\n\r"); + netConnected = true; + netConnecting = false; + + // MQTT Connect + mqttConnecting = true; + MQTTPacket_connectData data = MQTTPacket_connectData_initializer; + data.MQTTVersion = 4; + data.struct_version = 0; + data.clientID.cstring = clientId; + data.keepAliveInterval = MQTT_KEEPALIVE; // in Sec + data.username.cstring = AUTH_METHOD; + data.password.cstring = auth_token; + printf ("AutToken: %s\n\r", auth_token); + + if ((rc = client->connect(data)) != 0) { + printf("rc from MQTT connect is %d\r\n", rc); + connack_rc = rc; + return rc; + } + connected = true; + printf ("--->MQTT Connected\n\r"); + if ((rc = MQTT_Subscribe(MQTT_COMMAND_TOPIC, client)) == 0) { + LOG ("--->>>MQTT subscribed to: %s\n\r", MQTT_COMMAND_TOPIC); + } else { + LOG ("--->>>ERROR MQTT subscribe : %s\n\r", MQTT_COMMAND_TOPIC); + } + mqttConnecting = false; + connack_rc = rc; + return rc; +} + + +int MQTT_GetConnTimeout(int attemptNumber) { // First 10 attempts try within 3 seconds, next 10 attempts retry after every 1 minute + // after 20 attempts, retry every 10 minutes + return (attemptNumber < 10) ? 3 : (attemptNumber < 20) ? 60 : 600; +} + + +void MQTT_AttemptConnect(MQTT::Client<MQTTNetwork, Countdown, MQTT_MAX_PACKET_SIZE>* client, MQTTNetwork *mqttNetwork, NetworkInterface* network) { + connected = false; + + while (MQTT_Connect(client, mqttNetwork, network) != MQTT_CONNECTION_ACCEPTED) { + if (connack_rc == MQTT_NOT_AUTHORIZED || connack_rc == MQTT_BAD_USERNAME_OR_PASSWORD) { + printf ("File: %s, Line: %d Error: %d\n\r",__FILE__,__LINE__, connack_rc); + return; // don't reattempt to connect if credentials are wrong + } + int timeout = MQTT_GetConnTimeout(++retryAttempt); + WARN("Retry attempt number %d waiting %d\n", retryAttempt, timeout); + + // if ipstack and client were on the heap we could deconstruct and goto a label where they are constructed + // or maybe just add the proper members to do this disconnect and call MQTT_AttemptConnect(...) + // this works - reset the system when the retry count gets to a threshold + if (retryAttempt == 5) + NVIC_SystemReset(); + else + wait(timeout); + } +} + +int MQTT_PublishADC(MQTT::Client<MQTTNetwork, Countdown, MQTT_MAX_PACKET_SIZE>* client, time_t inputTime, float adcVal_0) { + MQTT::Message message; + const char* pubTopic = MQTT_EVENT_TOPIC; + + char buf[MQTT_MAX_PAYLOAD_SIZE]; + char timeBuf[50]; + + if (!client->isConnected()) { + printf ("---> MQTT DISCONNECTED\n\r"); return MQTT::FAILURE; + } + + strftime(timeBuf, 50, "%Y/%m/%d %H:%M:%S", localtime(&inputTime)); +// sprintf(buf, +// "{\"Project\":\"%s\",\"Time\":\"%s\",\"Type\":1,\"cmdID\":%d,\"ADC0\":%0.2f}", +// projectName, timeBuf, commandID, adcVal_0); + sprintf(buf, "{\"type\":1,\"deviceId\":\"PROEVN\",\"time\":\"%s\",\"cmdId\":%d,\"adc0\":%0.2f}", + timeBuf, commandID, adcVal_0); + message.qos = MQTT::QOS0; + message.retained = false; + message.dup = false; + message.payload = (void*)buf; + message.payloadlen = strlen(buf); + + if((message.payloadlen + strlen(pubTopic)+1) >= MQTT_MAX_PACKET_SIZE) + printf("message too long!\r\n"); + + LOG("Publishing %s\n\r", buf); + return client->publish(pubTopic, message); +} + +int MQTT_PublishRelayState(MQTT::Client<MQTTNetwork, Countdown, MQTT_MAX_PACKET_SIZE>* client, time_t inputTime, int relay1, int relay2) { + MQTT::Message message; + const char* pubTopic = MQTT_EVENT_TOPIC; + + char buf[MQTT_MAX_PAYLOAD_SIZE]; + char timeBuf[50]; + + if (!client->isConnected()) { + printf ("---> MQTT DISCONNECTED\n\r"); + return MQTT::FAILURE; + } + + strftime(timeBuf, 50, "%Y/%m/%d %H:%M:%S", localtime(&inputTime)); + sprintf(buf, "{\"type\":1,\"deviceId\":\"PROEVN\",\"time\":\"%s\",\"cmdId\":%d,\"relay1\":%d,\"relay2\":%d}", + timeBuf, commandID, relay1, relay2); + message.qos = MQTT::QOS0; + message.retained = false; + message.dup = false; + message.payload = (void*)buf; + message.payloadlen = strlen(buf); + + if((message.payloadlen + strlen(pubTopic)+1) >= MQTT_MAX_PACKET_SIZE) + printf("message too long!\r\n"); + + LOG("Publishing %s\n\r", buf); + return client->publish(pubTopic, message); +} +#endif /* __SIMPLEMQTT_H__ */ \ No newline at end of file