Auto light sleep is all about WiFi and requires a connection to an AP

esp8266 · dok-net · Apr 13, 2021 · Apr 15, 2021 · Apr 15, 2021 · Apr 15, 2021
commit 24efea2f664d8c479eb246875ece3223ab0e92d7
diff --git a/libraries/esp8266/examples/AutoSleepDemo/AutoSleepDemo.ino b/libraries/esp8266/examples/AutoSleepDemo/AutoSleepDemo.ino
@@ -1,25 +1,104 @@
-#include <Schedule.h>
+#include <ESP8266WiFi.h>
+#include <ESP8266WebServer.h>
 #include <PolledTimeout.h>
+#include <Schedule.h>
+
+#ifndef D5
+#define D5 (14)
+#endif
+
+// enter your WiFi configuration below
+const char* AP_SSID = "SSID";  // your router's SSID here
+const char* AP_PASS = "PSK";  // your router's password here
+
+uint32_t timeout = 30E3;  // 30 second timeout on the WiFi connection
+esp8266::polledTimeout::oneShotMs wifiTimeout(timeout);  // 30 second timeout on WiFi connection
+
+ESP8266WebServer server(80);
+
+void handleRoot() {
+  server.send(200, "text/plain", "hello from esp8266!\r\n");
+}
+
+void handleNotFound() {
+  String message = "File Not Found\n\n";
+  message += "URI: ";
+  message += server.uri();
+  message += "\nMethod: ";
+  message += (server.method() == HTTP_GET) ? "GET" : "POST";
+  message += "\nArguments: ";
+  message += server.args();
+  message += "\n";
+  for (uint8_t i = 0; i < server.args(); i++) {
+    message += " " + server.argName(i) + ": " + server.arg(i) + "\n";
+  }
+  server.send(404, "text/plain", message);
+}
    
 void setup() {
-  Serial.begin(74880);
+  Serial.begin(74800);
   while (!Serial);
   delay(100);
-  Serial.println("AutoLightSleep");
-  Serial.flush();
-}
+  Serial.println();
+  WiFi.mode(WIFI_STA);
+  WiFi.begin(AP_SSID, AP_PASS);
+  Serial.print(F("connecting to WiFi "));
+  Serial.println(WiFi.SSID());
 
-void loop() {
-  delay(10000); // this enters the idle task
+  wifiTimeout.reset(timeout);
+  while (((!WiFi.localIP()) || (WiFi.status() != WL_CONNECTED)) && (!wifiTimeout)) {
+    yield();
+  }
+  if ((WiFi.status() != WL_CONNECTED) || !WiFi.localIP()) {
+    Serial.println(F("WiFi timed out and didn't connect"));
+  } else {
+    Serial.println(F("IP address: "));
+    Serial.println(WiFi.localIP());
+  }
+  WiFi.setAutoReconnect(true);
+
+  //if (MDNS.begin("esp8266")) {
+  //    Serial.println("MDNS responder started");
+  //}
+
+  server.on("/", handleRoot);
+
+  server.on("/on", []() {
+    tone(D5, 440);
+    server.send(200, "text/plain", "tone on");
+  });
+
+  server.on("/off", []() {
+    noTone(D5);
+    server.send(200, "text/plain", "tone off");
+  });
 
-  Serial.println("entering auto sleep section");
-  Serial.flush();
-  ESP.autoLightSleep();
-  // ESP.autoModemSleep();
+  server.on("/sleep", []() {
+    ESP.autoLightSleep();
+    wifi_fpm_set_wakeup_cb([]() {
+      schedule_function([]() {
+        Serial.println("auto light sleep wakeup CB");
+      });
+    });
+    server.send(200, "text/plain", "auto light sleep on");
+  });
 
-  delay(10000); // this enters the idle task with auto light sleep
+  server.on("/nosleep", []() {
+    ESP.autoSleepOff();
+    server.send(200, "text/plain", "sleep off");
+  });
 
-  ESP.autoSleepOff();
-  Serial.println("left auto sleep section");
-  Serial.flush();
+  server.onNotFound(handleNotFound);
+
+  server.begin();
+
+  Serial.println("HTTP server started");
+  pinMode(LED_BUILTIN, OUTPUT);
+}
+
+void loop() {
+  digitalWrite(LED_BUILTIN, LOW);
+  server.handleClient();
+  digitalWrite(LED_BUILTIN, HIGH);
+  delay(1);
 }