67 lines
1.9 KiB
C
67 lines
1.9 KiB
C
#ifdef MQTT_ENABLE
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PubSubClient mqtt_client(wifi);
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long mqtt_last_reconnect_attempt = 0;
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void mqtt_callback(char* complete_topic, byte* pl, unsigned int length) {
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pl[length] = '\0';
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char* payload = (char*)pl;
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char* topic = complete_topic + strlen(MQTT_TOPIC); // Strip MQTT_TOPIC from the beginning
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// Here, payload is a char* (but has to be casted).
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if(strcmp(topic, "mode")==0) {
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for (int i=0; i<NUM_EFFECTS; i++) {
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EffectEntry* e = &effects[i];
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if (strcmp(e->name, payload)==0) {
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//Serial.printf("Effect found in mqtt_callback: %p\n", (void *)&e->effect);
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current_effect = e->effect;
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clear();
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return;
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}
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}
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} else if (strcmp(topic, "reboot")==0) {
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ESP.restart();
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}
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long value = atol(payload);
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if (strcmp(topic, "brightness")==0 && value > 0 && value <= 255) {
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config_brightness = value;
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FastLED.setBrightness(config_brightness);
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} else if (strcmp(topic, "cycle_time")==0 && value > 0) {
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config_effect_cycle_time = value;
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}
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}
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boolean mqtt_connect() {
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char client_id[30];
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snprintf(client_id, 30, HOSTNAME, ESP.getChipId());
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LOG("MQTT * Connecting to MQTT server with client id "); LOGln(client_id);
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if (mqtt_client.connect(client_id, MQTT_USER, MQTT_PASS)) {
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LOGln("MQTT * Connected.");
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mqtt_client.publish(MQTT_TOPIC "status", "ONLINE");
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mqtt_client.subscribe(MQTT_TOPIC "+");
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}
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return mqtt_client.connected();
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}
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void mqtt_setup() {
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mqtt_client.setServer(MQTT_SERVER, MQTT_PORT);
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mqtt_client.setCallback(mqtt_callback);
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mqtt_last_reconnect_attempt = 0;
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}
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void mqtt_loop() {
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if (!mqtt_client.connected()) {
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long now = millis();
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if (now - mqtt_last_reconnect_attempt > 5000) {
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mqtt_last_reconnect_attempt = now;
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if (mqtt_connect()) {
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mqtt_last_reconnect_attempt = 0;
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}
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}
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} else {
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mqtt_client.loop();
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}
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}
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#endif // MQTT_ENABLE
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