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hearbeat in JSON - https://github.com/proddy/EMS-ESP/issues/217

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proddy
2019-10-21 15:35:46 +02:00
parent ce28424f95
commit 31d1f4cb6a
3 changed files with 22 additions and 17 deletions
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31
src/MyESP.cpp
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@@ -1379,23 +1379,22 @@ void MyESP::_heartbeatCheck(bool force = false) {
uint32_t free_memory = ESP.getFreeHeap();
uint8_t mem_available = 100 * free_memory / total_memory; // as a %
char payload[300] = {0};
char s[10];
strlcpy(payload, "version=", sizeof(payload));
strlcat(payload, _app_version, sizeof(payload)); // version
strlcat(payload, ", IP=", sizeof(payload));
strlcat(payload, WiFi.localIP().toString().c_str(), sizeof(payload)); // IP address
strlcat(payload, ", rssid=", sizeof(payload));
strlcat(payload, itoa(getWifiQuality(), s, 10), sizeof(payload)); // rssi %
strlcat(payload, "%, load=", sizeof(payload));
strlcat(payload, ltoa(getSystemLoadAverage(), s, 10), sizeof(payload)); // load
strlcat(payload, "%, uptime=", sizeof(payload));
strlcat(payload, ltoa(_getUptime(), s, 10), sizeof(payload)); // uptime in secs
strlcat(payload, "secs, freemem=", sizeof(payload));
strlcat(payload, itoa(mem_available, s, 10), sizeof(payload)); // free mem as a %
strlcat(payload, "%", sizeof(payload));
StaticJsonDocument<200> doc;
JsonObject rootHeartbeat = doc.to<JsonObject>();
mqttPublish(MQTT_TOPIC_HEARTBEAT, payload, false); // send to MQTT with retain off
rootHeartbeat["version"] = _app_version;
rootHeartbeat["IP"] = WiFi.localIP().toString().c_str();
rootHeartbeat["rssid"] = getWifiQuality();
rootHeartbeat["load"] = getSystemLoadAverage();
rootHeartbeat["uptime"] = _getUptime();
rootHeartbeat["freemem"] = mem_available;
char data[300] = {0};
serializeJson(doc, data, sizeof(data));
// myDebugLog("Publishing hearbeat via MQTT");
(void)mqttPublish(MQTT_TOPIC_HEARTBEAT, data, false); // send to MQTT with retain off
}
}