From fe3dba6cad0256a37023e16f2ac01932132a8998 Mon Sep 17 00:00:00 2001
From: Mathieu Maret <mathieu.maret@gmail.com>
Date: Wed, 6 Apr 2016 16:03:14 +0200
Subject: [PATCH] Add CONFIG_ENABLE_POWER_SAVE

Enable light sleep
Switch off internal LED
Disable mDNS
---
 WifiControlSensor/WifiControlSensor.ino | 6 +++++-
 WifiControlSensor/config_device.h       | 4 +++-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/WifiControlSensor/WifiControlSensor.ino b/WifiControlSensor/WifiControlSensor.ino
index ca6c48d..16bbdd1 100644
--- a/WifiControlSensor/WifiControlSensor.ino
+++ b/WifiControlSensor/WifiControlSensor.ino
@@ -103,6 +103,7 @@ void WifiSetup(int bootmode, int forceSetup, char *confSsid, char *confPassword,
     SKETCH_DEBUG_PRINTLN("");
     SKETCH_DEBUG_PRINTLN("WiFi connected");
 
+#ifndef CONFIG_ENABLE_POWER_SAVE
     if (!MDNS.begin(confHost)) {
       SKETCH_DEBUG_PRINTLN("Error setting up MDNS responder!");
       while (1) {
@@ -110,6 +111,7 @@ void WifiSetup(int bootmode, int forceSetup, char *confSsid, char *confPassword,
       }
     }
     SKETCH_DEBUG_PRINTLN("mDNS responder started");
+#endif
     myIP = WiFi.localIP();
   }
 
@@ -222,8 +224,10 @@ void setup() {
       SKETCH_DEBUG_PRINTLN("BMP180 init success");
     WebSetupServer(mode);
   }
-#ifdef CONFIG_ENABLE_LIGHT_SLEEP
+#ifdef CONFIG_ENABLE_POWER_SAVE
   wifi_set_sleep_type(LIGHT_SLEEP_T);
+  pinMode(LED_BUILTIN, OUTPUT);
+  digitalWrite(LED_BUILTIN, HIGH); //Active at low level
 #endif
 }
 
diff --git a/WifiControlSensor/config_device.h b/WifiControlSensor/config_device.h
index 1fd9978..cbf78af 100644
--- a/WifiControlSensor/config_device.h
+++ b/WifiControlSensor/config_device.h
@@ -13,7 +13,9 @@
 #define CONFIG_BMP180_SCL 14
 
 // Enable light sleep to save some power (http://bbs.espressif.com/viewtopic.php?f=6&t=133&p=485&hilit=sleep+modem#p485)
-//#define CONFIG_ENABLE_LIGHT_SLEEP
+// Switch off internal LED
+// Disable mDNS
+//#define CONFIG_ENABLE_POWER_SAVE
 
 /* DEFAULT VALUE ALSO DEFINED IN CONFIG.H */