From 930bde2619287588609d2c5b47e8120281704874 Mon Sep 17 00:00:00 2001
From: Kai Lauterbach <klaute@gmx.de>
Date: Wed, 22 Jun 2022 13:52:55 +0200
Subject: [PATCH] Added watchdog support.

---
 firmware/config_user.h.example |  6 +++++-
 firmware/firmware.ino          | 11 +++++++++++
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/firmware/config_user.h.example b/firmware/config_user.h.example
index 6dbd1b4..b81c72f 100755
--- a/firmware/config_user.h.example
+++ b/firmware/config_user.h.example
@@ -31,6 +31,10 @@ String DEVICE_NAME = "weatherstation";
 // Restarts the firmware every n seconds
 //#define RESET_ESP_TIMEINTERVAL // BETA STATUS
 //#define HTTP_CALL_ON_WINDSPEED_EXCEED  // BETA STATUS
+//#define DEBUG_WINDSPEED_MEASUREMENT   // for debugging windspeed measurement only
+//#define LOG_MILLIS_TO_INFLUXDB
+//#define ENABLE_WATCHDOG
+//#define WATCHDOG_TIMEOUT_MS 30000
 
 const float HUMIDITY_FACTOR = 1.0;
 const float LIGHT_FACTOR    = 1.0;
@@ -56,7 +60,7 @@ const char *INFLUXDB_TOKEN  = "your api token";
 #define HTTP_CALL_ON_WINDSPEED_INTERVAL_S   60 // it's required to be bigger than WIND_SENSOR_MEAS_TIME_S
 #define HTTP_CALL_ON_WINDSPEED_URL         "http://192.168.178.100:3001/button-windspeedexceed?event=click"
 
-// anemometer settings, to use enable SENSOR_WIND
+// anemometer settings
 // thingiverse anemometer settings: https://www.thingiverse.com/thing:2559929/files
 #define ROTOR_LENGTH_CM                             8.25
 #define ROTOR_LENGTH_M          (ROTOR_LENGTH_CM / 100.0)
diff --git a/firmware/firmware.ino b/firmware/firmware.ino
index 22eeaba..e3136a2 100644
--- a/firmware/firmware.ino
+++ b/firmware/firmware.ino
@@ -158,6 +158,12 @@ void setup()
   ESP.deepSleep(POWERSAVING_SLEEP_S * 1000000, WAKE_RF_DEFAULT);
   delay(100);
 #endif
+
+#ifdef ENABLE_WATCHDOG
+  // Enable the internal watchdog
+  ESP.wdtEnable(WATCHDOG_TIMEOUT_MS);
+#endif
+
 }
 
 //*************************************************************************//
@@ -178,6 +184,11 @@ void criticalBatCheck()
 
 void loop()
 {
+
+#ifdef ENABLE_WATCHDOG
+  ESP.wdtFeed();
+#endif
+
 #ifdef BATTERY_POWERED
   delay(50);
   return;