From 0098c7aaafa960a11d65ed170f89264df3f73b16 Mon Sep 17 00:00:00 2001
From: Jannik Beyerstedt <code@jannikbeyerstedt.de>
Date: Mon, 24 Jul 2017 12:21:02 +0200
Subject: [PATCH] [CODE] add first draft

---
 lightscontrol-client.ino | 142 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 142 insertions(+)
 create mode 100644 lightscontrol-client.ino

diff --git a/lightscontrol-client.ino b/lightscontrol-client.ino
new file mode 100644
index 0000000..74ebcfc
--- /dev/null
+++ b/lightscontrol-client.ino
@@ -0,0 +1,142 @@
+//#include <ESP8266WiFiGeneric.h>
+//#include <WiFiClient.h>
+//#include <WiFiClientSecure.h>
+//#include <WiFiUdp.h>
+//#include <ESP8266WiFiMulti.h>
+//#include <ESP8266WiFiAP.h>
+//#include <ESP8266WiFiSTA.h>
+//#include <WiFiServer.h>
+#include <ESP8266WiFi.h>
+
+const char* host = "ursaminor.local";
+String serviceUri = "/service.php";
+const int httpPort = 8088;
+
+const int relaisPin = 3;
+
+bool lightState = false;
+unsigned int lightTime = 0;
+bool updated = false;
+
+void setup() {
+  Serial.begin(115200);
+  delay(100);
+
+  Serial.println("");
+  Serial.println("Connecting to WiFi");
+  WiFi.begin("WLAN-Bey-IoT","IoT-Fra80");
+  while (WiFi.status() != WL_CONNECTED) {
+    delay(500);
+    Serial.print(".");
+  }
+  Serial.println(" connected");  
+  Serial.print("IP address: ");
+  Serial.println(WiFi.localIP());
+  Serial.println("");
+
+  pinMode(0, OUTPUT);
+  pinMode(relaisPin, OUTPUT);
+}
+
+void loop() {
+  Serial.print("connecting to ");
+  Serial.println(host);
+
+  // Use WiFiClient class to create TCP connections
+  WiFiClient client;
+
+  if (!client.connect(host, httpPort)) {
+    Serial.println("ERROR connection failed");
+    return;
+  }
+  
+  // This will send the request to the server
+  String httpRequest = "GET " + serviceUri + " HTTP/1.1\r\n" + 
+                       "Host: " + host + "\r\n" +
+                       "Connection: close\r\n\r\n";
+  client.print(httpRequest);
+  delay(100);
+
+
+  // Read the lines of the reply from server
+
+  // first expect a HTTP 200 status code
+  while(client.available()) {
+    String line = client.readStringUntil('\n');
+    if (line.indexOf("HTTP") != -1) {
+      if (line.indexOf("200") == -1) {
+        Serial.println("ERROR: invalid http status code");
+      }
+      break;
+    } else {
+      ;
+    }
+  }
+  
+  // then read until the payload is found
+  while(client.available()) {
+    String line = client.readStringUntil('\n');
+
+    int start = line.indexOf("s=");
+    if (start != -1) {
+      // parse state information
+      String buf;
+      
+      buf = line.substring(start+2, start+3);
+      if (buf.equals("0")) {
+        lightState = 0;
+      } else {
+        lightState = 1;
+      }
+
+      start = line.indexOf("t=");
+      buf = line.substring(start+2);
+      lightTime = buf.toInt();
+
+      updated = true;
+      Serial.println("response parsed");
+    } else {
+      ;
+    }
+  }
+
+  // failsafe
+  if (!updated) {
+    lightState = true;
+    lightTime = 1;
+    Serial.println("WARN failsafe");
+  }
+
+  Serial.print("Lights: ");
+  Serial.print(lightState);
+  Serial.print("\tTime: ");
+  Serial.println(lightTime);
+
+  // TODO: SWITCH SOME PIN
+  digitalWrite(relaisPin, lightState);
+
+  // sleep some time according to the recommendation in the answer
+  if (lightTime > 15) { // not more than 15 minutes
+    lightTime = 15;
+  }
+
+  // only deep sleep, if the time is more than 5 minutes
+  if (lightTime >= 5) {
+    Serial.println("going for a deep sleep");
+    Serial.println("");
+    Serial.flush();
+    Serial.end();
+    ESP.deepSleep(lightTime * 60 * 1000000);
+    // connect GPIO16 (D0) to RST!!!
+  } else {
+    Serial.println("taking a normal sleep");
+    if (lightTime < 1) {
+      delay(10 * 1000);
+    } else {
+      delay(lightTime * 60 * 1000);
+    }
+  }
+  
+  Serial.println("");
+  updated = false;
+}