LOGln now logs to a central syslog server, if available.

include/config.sample.h

@@ -39,4 +39,7 @@
 #define MQTT_TOPIC_STATE_LONG "espleaf/state_long"
 #define MQTT_TOPIC_COMMANDS "esplead/cmnd"
 
+#define SYSLOG_HOST "..."
+#define SYSLOG_PORT 514
+
 //#define TEST_MODE

include/syslog.h

@@ -0,0 +1,8 @@
+#pragma once
+
+#include <Arduino.h>
+#include <WiFiUdp.h>
+
+#ifdef SYSLOG_HOST
+	void syslog(String msg, uint8_t severity=7);
+#endif

include/tools.h

@@ -1,8 +1,15 @@
 #pragma once
 #include "my_fastled.h"
+#include "syslog.h"
 
-#define LOG(...) Serial.printf(__VA_ARGS__)
+//#define LOG(...) Serial.printf(__VA_ARGS__)
+//#define LOGln(...) Serial.printf(__VA_ARGS__); Serial.println()
+
+#ifdef SYSLOG_HOST
+	#define LOGln(...) { char buffer[512]; snprintf(buffer, 512, __VA_ARGS__); syslog(buffer); Serial.println(buffer);}
+#else
 	#define LOGln(...) Serial.printf(__VA_ARGS__); Serial.println()
+#endif
 
 
 void clear_leds();

src/main.cpp

@@ -10,6 +10,7 @@
 #include "prototypes.h"
 #include "mqtt.h"
 #include "state.h"
+#include "syslog.h"
 
 std::vector<Node*> nodes;
 std::list<Edge*> edges;
@@ -173,6 +174,8 @@ void setup() {
 		delay(250);
 		show_status(0);
 	#endif
+
+	syslog("Setup done.");
 }
 
 void loop() {

src/syslog.cpp

@@ -0,0 +1,17 @@
+#include "syslog.h"
+#include "config.h"
+
+#ifdef SYSLOG_HOST
+	void syslog(String msg, uint8_t severity) {
+		uint8_t facility = 16; // local0
+		if (severity > 7) severity = 7;
+		WiFiUDP udp;
+
+		udp.beginPacket(SYSLOG_HOST, SYSLOG_PORT);
+		udp.write("<");
+		udp.write(String(facility * 8 + severity).c_str());
+		udp.write(">1 - " OTA_HOSTNAME " espleaf 1 1 - ");
+		udp.write(msg.c_str());
+		udp.endPacket();
+	}
+#endif

src/wifi.cpp

@@ -2,13 +2,14 @@
 #include "tools.h"
 
 void wifi_setup() {
-    LOG("Connecting to WiFi %s...", WIFI_SSID);
+    Serial.printf("Connecting to WiFi %s...", WIFI_SSID);
     WiFi.mode(WIFI_STA);
     WiFi.begin(WIFI_SSID, WIFI_PASS);
     while (WiFi.status() != WL_CONNECTED) {
-        LOG(".");
+        Serial.print(".");
         delay(300);
     }
+    Serial.println();
     LOGln("Connected as %s", WiFi.localIP().toString().c_str());
     random16_add_entropy(micros());
 }