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--- zarizeni:esp8266 [2016/05/30 10:07] – multitricker
+++ zarizeni:esp8266 [2023/02/21 13:26] (aktuální) – multitricker
@@ Řádek 3: / Řádek 3: @@
 Příklad jak naprogramovat ESP8266 v Arduino IDE od ''mikroma''.
-**Web autora příkladu:** http://mikrom.cz/\\
+**Web autora příkladů:** https://mikrom.cz/\\
-**Kontakt na autora:** mikrom@mikrom.cz
+**Kontakt na autora:** [[mikrom@mikrom.cz]]
 Nezapomeňte na začátku kódu nastavit své správné proměnné (SSID vlastní wifi, heslo k wifi síti, správnou adresu serveru a GUID vyplněné v administraci na tmep.cz).
-<file c tmep.ino>
+===== Teplota =====
+{{:zarizeni:esp:tmep_send_temperature.fzz|Schéma Fritzing}}
+{{:zarizeni:esp:tmep_send_temperature.png?500|}}
+<file c tmep_send_temperature.ino>
+/*
+  Simple sketch for sending data to the TMEP.cz
+  by mikrom (http://www.mikrom.cz)
+  http://wiki.tmep.cz/doku.php?id=zarizeni:esp8266
+  If you send only temperature url will be: http://ahoj.tmep.cz/?mojemereni=25.6 (domain is "ahoj" and guid is "mojemereni"
+  If you send also humidity url will be: http://ahoj.tmep.cz/?mojemereni=25.6&humV=60
+  But for humidity You will need DHT11 or DHT22 sensor and code will need some modifications, see the other sketch.
+  Blinking with ESP internal LED according status:
+  LED constantly blinking = connecting to WiFi
+  LED on for 5 seconds = boot, setup, WiFi connect OK
+  LED blink 2x per second = temp error (wrong pin, bad sensor, read -127.00°C)
+  LED blink 3x per second = connect to host failed
+  LED blink 4x per second = client connection timeout
+  LED blink 1x per [sleep] = send data ok
+*/
+#include <ESP8266WiFi.h>       // WiFi library
+#include <OneWire.h>           // OneWire communication library for DS18B20
+#include <DallasTemperature.h> // DS18B20 library
+// Define settings
+const char ssid[]     = "---ssid---"; // WiFi SSID
+const char pass[]     = "---password---"; // WiFi password
+const char domain[]   = "---domain---";  // domain.tmep.cz
+const char guid[]     = "---guid---"; // mojemereni
+const byte sleep      = 1; // How often send data to the server. In minutes
+const byte oneWireBus = 5; // Pin where is DS18B20 connected
+// Create Temperature object "sensors"
+OneWire oneWire(oneWireBus);         // Setup a oneWire instance to communicate with any OneWire devices (not just Maxim/Dallas temperature ICs)
+DallasTemperature sensors(&oneWire); // Pass our oneWire reference to Dallas Temperature.
+void setup() {
+  pinMode(2, OUTPUT); // GPIO2, LED on ESP8266
+  // Start serial
+  Serial.begin(115200);
+  delay(10);
+  Serial.println();
+  // Connect to the WiFi
+  Serial.print(F("Connecting to ")); Serial.println(ssid);
+  WiFi.begin(ssid, pass);
+  while (WiFi.status() != WL_CONNECTED) {
+    digitalWrite(2, LOW); delay(100); digitalWrite(2, HIGH); // Blinking with LED during connecting to WiFi
+    delay(500);
+    //digitalWrite(2, HIGH); // Blinking with LED during connecting to WiFi
+    Serial.print(F("."));
+  }
+  Serial.println();
+  Serial.println(F("WiFi connected"));
+  Serial.print(F("IP address: ")); Serial.println(WiFi.localIP());
+  Serial.println();
+  sensors.begin(); // Initialize the DallasTemperature DS18B20 class (not strictly necessary with the client class, but good practice).
+  // LED on for 5 seconds after setup is done
+  digitalWrite(2, LOW);
+  delay(5000);
+  digitalWrite(2, HIGH);
+}
+void loop() {
+  sensors.requestTemperatures();        // Send the command to get temperatures. request to all devices on the bus
+  float t = sensors.getTempCByIndex(0); // Read temperature in "t" variable
+  if (t == -127.00) {                   // If you have connected it wrong, Dallas read this temperature! :)
+    Serial.println(F("Temp error!"));
+    // Blink 2 time when temp error
+    digitalWrite(2, LOW); delay(100); digitalWrite(2, HIGH); delay(100); digitalWrite(2, LOW); delay(100); digitalWrite(2, HIGH);
+    delay(1000);
+    return;
+  }
+  // Connect to the HOST and send data via GET method
+  WiFiClient client; // Use WiFiClient class to create TCP connections
+  char host[50];            // Joining two chars is little bit difficult. Make new array, 50 bytes long
+  strcpy(host, domain);     // Copy /domain/ in to the /host/
+  strcat(host, ".tmep.cz"); // Add ".tmep.cz" at the end of the /host/. /host/ is now "/domain/.tmep.cz"
+  Serial.print(F("Connecting to ")); Serial.println(host);
+  if (!client.connect(host, 80)) {
+    // If you didn't get a connection to the server
+    Serial.println(F("Connection failed"));
+    // Blink 3 times when host connection error
+    digitalWrite(2, LOW); delay(100); digitalWrite(2, HIGH); delay(100); digitalWrite(2, LOW); delay(100); digitalWrite(2, HIGH); delay(100); digitalWrite(2, LOW); delay(100); digitalWrite(2, HIGH);
+    delay(1000);
+    return;
+  }
+  Serial.println(F("Client connected"));
+  // Make an url. We need: /?guid=t
+  String url = "/?";
+         url += guid;
+         url += "=";
+         url += t;
+  Serial.print(F("Requesting URL: ")); Serial.println(url);
+  // Make a HTTP GETrequest.
+  client.print(String("GET ") + url + " HTTP/1.1\r\n" +
+               "Host: " + host + "\r\n" +
+               "Connection: close\r\n\r\n");
+  // Blik 1 time when send OK
+  digitalWrite(2, LOW); delay(100); digitalWrite(2, HIGH);
+  // Workaroud for timeout
+  unsigned long timeout = millis();
+  while (client.available() == 0) {
+    if (millis() - timeout > 5000) {
+      Serial.println(F(">>> Client Timeout !"));
+      client.stop();
+      // Blink 4 times when client timeout
+      digitalWrite(2, LOW); delay(100); digitalWrite(2, HIGH); delay(100); digitalWrite(2, LOW); delay(100); digitalWrite(2, HIGH); digitalWrite(2, LOW); delay(100); digitalWrite(2, HIGH); delay(100); digitalWrite(2, LOW); delay(100); digitalWrite(2, HIGH);
+      delay(1000);
+      return;
+    }
+  }
+  Serial.println();
+  // Wait for another round
+  delay(sleep*60000);
+}
+</file>
+===== Teplota a vlhkost =====
+[[https://learn.adafruit.com/dht/overview
+|Informace o senzorech.]]
+{{:zarizeni:esp:tmep_send_temperature_and_humidity.fzz|Schéma Fritzing}}
+{{:zarizeni:esp:tmep_send_temperature_and_humidity.png?500|}}
+<file c tmep_send_temperature_and_humidity.ino>
 // Simple sketch for sending data to the TMEP.cz
 // by mikrom (http://www.mikrom.cz)
 // http://wiki.tmep.cz/doku.php?id=zarizeni:esp8266
+//
 // If you send only temperature url will be: http://ahoj.tmep.cz/?mojemereni=25.6 (domain is "ahoj" and guid is "mojemereni"
 // If you send also humidity url will be: http://ahoj.tmep.cz/?mojemereni=25.6&humV=60
-// Another nice example with bulding HTTP GET request is here: https://github.com/SensorsIot/ESP8266-Longterm-Sensor-Hourly/blob/master/Sparkfun.ino
+// but for humidity You will need DHT11 or DHT22 sensor and code will need some modifications
+//
+// Not tested, but should work! :)
-// Include WiFi stuff
+#include <ESP8266WiFi.h> // WiFi library
-#include <ESP8266WiFi.h>
+#include "DHT.h"         // DHT sensor library
-// Include Temperature stuff for DS18B20
-#include <OneWire.h>
-#include <DallasTemperature.h>
 // Define settings
-#define WLAN_SSID    "---wifi ssid---"      // WiFi SSID
+const char* ssid    = "---wifi ssid---"; // WiFi SSID
-#define WLAN_PASS    "---wifi password---"  // WiFi password
+const char* pass    = "---wifi pass---"; // WiFi password
-#define HOST         "---domain---.tmep.cz" // domena.tmep.cz
+const char* domain  = "---domain---";    // domain.tmep.cz
-#define GUID         "---guid---"           // mojemereni
+const char* guid    = "---guid---";      // mojemereni
-#define DELAY        60000                  // How often send data to the server. Default is 60000ms = 1 minute
+const long sleep    = 600000;            // How often send data to the server. Default is 600000ms = 10 minute
-#define ONE_WIRE_BUS 5                      // Pin where is DS18B20 connected
+const byte dhtPin   = 5;                 // Pin where is DHT connected
+const byte dhtType  = 22;                // DHT type, for DHT11 = 11, for DHT22 = 22
-// Use WiFiClient class to create TCP connections
+DHT dht(dhtPin, dhtType); // Initialize DHT sensor.
-WiFiClient client;
-// Create Temperature object "sensors"
-OneWire oneWire(ONE_WIRE_BUS);       // Setup a oneWire instance to communicate with any OneWire devices (not just Maxim/Dallas temperature ICs)
-DallasTemperature sensors(&oneWire); // Pass our oneWire reference to Dallas Temperature.
 void setup() {
@@ Řádek 45: / Řádek 184: @@
   // Connect to the WiFi
-  Serial.print("Connecting to "); Serial.println(WLAN_SSID);
+  Serial.print("Connecting to "); Serial.println(ssid);
-  WiFi.begin(WLAN_SSID, WLAN_PASS);
+  WiFi.begin(ssid, pass);
   while (WiFi.status() != WL_CONNECTED) {
     delay(500);
     Serial.print(".");
   }
+  Serial.println();
   Serial.println("WiFi connected");
   Serial.print("IP address: "); Serial.println(WiFi.localIP());
+  Serial.println();
-  // Initialize the DallasTemperature DS18B20 class (not strictly necessary with the client class, but good practice).
+  dht.begin(); // Initialize the DHT sensor
-  sensors.begin();
+  delay(10000);
-  Serial.println("Ready for LOOP!");
 }
 void loop() {
-  // Send the command to get temperatures. request to all devices on the bus
+  // Reading temperature or humidity takes about 250 milliseconds!
-  sensors.requestTemperatures();
+  // Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
+  float h = dht.readHumidity();
+  // Read temperature as Celsius (the default)
+  float t = dht.readTemperature();
-  // Read temperature in "temp" variable
+  // Check if any reads failed and exit early (to try again).
-  float temp = sensors.getTempCByIndex(0);
+  if (isnan(h) || isnan(t)) {
+    Serial.println("Failed to read from DHT sensor!");
+    return;
+  }
   // Connect to the HOST and send data via GET method
-  if (client.connect(HOST, 80)) {
+  WiFiClient client; // Use WiFiClient class to create TCP connections
-    Serial.println("Connected");
+  char host[50];            // Joining two chars is little bit difficult. Make new array, 50 bytes long
-    // Make a HTTP request.
+  strcpy(host, domain);     // Copy /domain/ in to the /host/
-    client.print("GET /?");
+  strcat(host, ".tmep.cz"); // Add ".tmep.cz" at the end of the /host/. /host/ is now "/domain/.tmep.cz"
-    client.print(GUID); // guid: "mojemereni"
+  const int httpPort = 80;
-    client.print("=");
-    client.print(temp); // temperature value
+  Serial.print("Connecting to "); Serial.println(host);
-    //client.print("&humV=");
+  if (!client.connect(host, httpPort)) {
-    //client.print(60); // humidity value
+    // If you didn't get a connection to the server
-    client.println(" HTTP/1.1");
-    client.print("Host:"); client.println(HOST);
-    client.println("Connection: close");
-    client.println();
-  } else {
-    // If you didn't get a connection to the server:
     Serial.println("Connection failed");
+    return;
   }
+  Serial.println("Client connected");
-  // Wait for DELAY, default 1 minute
+  // Make an url. We need: /?guid=t&humV=h
-  delay(DELAY);
+  String url = "/?";
+         url += guid;
+         url += "=";
+         url += t;
+         url += "&humV=";
+         url += h;
+  Serial.print("Requesting URL: "); Serial.println(url);
+  // Make a HTTP GETrequest.
+  client.print(String("GET ") + url + " HTTP/1.1\r\n" +
+               "Host: " + host + "\r\n" +
+               "Connection: close\r\n\r\n");
+  // Workaroud for timeout
+  unsigned long timeout = millis();
+  while (client.available() == 0) {
+    if (millis() - timeout > 5000) {
+      Serial.println(">>> Client Timeout !");
+      client.stop();
+      return;
+    }
+  }
+  Serial.println();
+  // Wait for another round
+  delay(sleep);
 }
 </file>