Chris Giacofei
8b72a16203
All the input/output tracking is handled with class members instead of passing pointers to global variables.
78 lines
1.9 KiB
C++
78 lines
1.9 KiB
C++
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void ConnectMQTT() {
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ConfigData config;
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EEPROM.get(ConfAddress, config);
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static const char *user = config.mqtt.user;
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static const char *password = config.mqtt.password;
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//config.mqtt.topic.root
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//config.mqtt.broker
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while (!mqtt_client.connect("brewhouse", user, password)) {
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Serial.print(".");
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delay(1000);
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}
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char topic[30];
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strcpy(topic,config.mqtt.topic.root);
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strcat(topic,config.mqtt.topic.boil.setpoint);
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mqtt_client.subscribe(topic);
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strcpy(topic,config.mqtt.topic.root);
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strcat(topic,config.mqtt.topic.mash.setpoint);
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mqtt_client.subscribe(topic);
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}
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void MessageReceived(char* topic, byte* payload, unsigned int length) {
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ConfigData config;
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EEPROM.get(ConfAddress, config);
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char buf[30];
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strcpy(buf,config.mqtt.topic.root);
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strcat(buf,config.mqtt.topic.boil.setpoint);
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char msg[length+1];
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for (int i=0;i<length;i++) {
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msg[i] = (char)payload[i];
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}
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msg[length] = 0;
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if (strcmp(topic, buf) == 0) {
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cJSON *monitor_json = cJSON_Parse(msg);
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const cJSON *name = NULL;
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const cJSON *setting = NULL;
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const cJSON *unit = NULL;
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// Update PWM setpoint.
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setting = cJSON_GetObjectItemCaseSensitive(monitor_json, "setpoint");
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KettleDuty = setting->valueint;
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cJSON_Delete(monitor_json);
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}
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}
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static void SendSensorData() {
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ConfigData config;
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EEPROM.get(ConfAddress, config);
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char *string = NULL;
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cJSON *entity = NULL;
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cJSON *setpoint = NULL;
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cJSON *units = NULL;
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cJSON *monitor = cJSON_CreateObject();
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cJSON_AddStringToObject(monitor, "entity", config.mqtt.topic.boil.name);
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cJSON_AddNumberToObject(monitor, "setpoint", KettleDuty);
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cJSON_AddStringToObject(monitor, "units", "%");
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char *msg = cJSON_Print(monitor);
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char topic[30];
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strcpy(topic,config.mqtt.topic.root);
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strcat(topic,config.mqtt.topic.boil.sensor);
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mqtt_client.publish(topic, msg);
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cJSON_Delete(monitor);
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}
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