Set wifi sleep mode from settings

code/espurna/utils.ino

@@ -368,6 +368,15 @@ void infoMemory(const char * name, unsigned int total_memory, unsigned int free_
 
 }
 
+const char* _info_wifi_sleep_mode(WiFiSleepType_t type) {
+    switch (type) {
+        case WIFI_NONE_SLEEP: return "NONE";
+        case WIFI_LIGHT_SLEEP: return "LIGHT";
+        case WIFI_MODEM_SLEEP: return "MODEM";
+    }
+}
+
+
 void info() {
 
     DEBUG_MSG_P(PSTR("\n\n---8<-------\n\n"));
@@ -473,6 +482,11 @@ void info() {
         DEBUG_MSG_P(PSTR("[MAIN] Power saving delay value: %lu ms\n"), systemLoopDelay());
     }
 
+    const WiFiSleepType_t sleep_mode = WiFi.getSleepMode();
+    if (sleep_mode != WIFI_NONE_SLEEP) {
+        DEBUG_MSG_P(PSTR("[MAIN] WiFi Sleep Mode: %s\n"), _info_wifi_sleep_mode(sleep_mode));
+    }
+
     // -------------------------------------------------------------------------
 
     #if SYSTEM_CHECK_ENABLED

code/espurna/wifi.ino

@@ -75,6 +75,10 @@ void _wifiConfigure() {
 
     jw.enableScan(getSetting("wifiScan", WIFI_SCAN_NETWORKS).toInt() == 1);
 
+    unsigned char sleep_mode = getSetting("wifiSleep", WIFI_SLEEP_MODE).toInt();
+    sleep_mode = constrain(sleep_mode, 0, 2);
+
+    WiFi.setSleepMode(static_cast<WiFiSleepType_t>(sleep_mode));
 }
 
 void _wifiScan(uint32_t client_id = 0) {
@@ -603,8 +607,6 @@ void wifiRegister(wifi_callback_f callback) {
 
 void wifiSetup() {
 
-    WiFi.setSleepMode(WIFI_SLEEP_MODE);
-
     _wifiInject();
     _wifiConfigure();