esp lcd owm

18_esp_lcd_owm/.gitignore

@@ -0,0 +1,5 @@
+.pio
+.vscode/.browse.c_cpp.db*
+.vscode/c_cpp_properties.json
+.vscode/launch.json
+.vscode/ipch

18_esp_lcd_owm/.vscode/extensions.json

@@ -0,0 +1,10 @@
+{
+    // See http://go.microsoft.com/fwlink/?LinkId=827846
+    // for the documentation about the extensions.json format
+    "recommendations": [
+        "platformio.platformio-ide"
+    ],
+    "unwantedRecommendations": [
+        "ms-vscode.cpptools-extension-pack"
+    ]
+}

18_esp_lcd_owm/include/README

@@ -0,0 +1,37 @@
+
+This directory is intended for project header files.
+
+A header file is a file containing C declarations and macro definitions
+to be shared between several project source files. You request the use of a
+header file in your project source file (C, C++, etc) located in `src` folder
+by including it, with the C preprocessing directive `#include'.
+
+```src/main.c
+
+#include "header.h"
+
+int main (void)
+{
+ ...
+}
+```
+
+Including a header file produces the same results as copying the header file
+into each source file that needs it. Such copying would be time-consuming
+and error-prone. With a header file, the related declarations appear
+in only one place. If they need to be changed, they can be changed in one
+place, and programs that include the header file will automatically use the
+new version when next recompiled. The header file eliminates the labor of
+finding and changing all the copies as well as the risk that a failure to
+find one copy will result in inconsistencies within a program.
+
+In C, the convention is to give header files names that end with `.h'.
+
+Read more about using header files in official GCC documentation:
+
+* Include Syntax
+* Include Operation
+* Once-Only Headers
+* Computed Includes
+
+https://gcc.gnu.org/onlinedocs/cpp/Header-Files.html

18_esp_lcd_owm/lib/README

@@ -0,0 +1,46 @@
+
+This directory is intended for project specific (private) libraries.
+PlatformIO will compile them to static libraries and link into the executable file.
+
+The source code of each library should be placed in a separate directory
+("lib/your_library_name/[Code]").
+
+For example, see the structure of the following example libraries `Foo` and `Bar`:
+
+|--lib
+|  |
+|  |--Bar
+|  |  |--docs
+|  |  |--examples
+|  |  |--src
+|  |     |- Bar.c
+|  |     |- Bar.h
+|  |  |- library.json (optional. for custom build options, etc) https://docs.platformio.org/page/librarymanager/config.html
+|  |
+|  |--Foo
+|  |  |- Foo.c
+|  |  |- Foo.h
+|  |
+|  |- README --> THIS FILE
+|
+|- platformio.ini
+|--src
+   |- main.c
+
+Example contents of `src/main.c` using Foo and Bar:
+```
+#include <Foo.h>
+#include <Bar.h>
+
+int main (void)
+{
+  ...
+}
+
+```
+
+The PlatformIO Library Dependency Finder will find automatically dependent
+libraries by scanning project source files.
+
+More information about PlatformIO Library Dependency Finder
+- https://docs.platformio.org/page/librarymanager/ldf.html

18_esp_lcd_owm/platformio.ini

@@ -0,0 +1,18 @@
+; PlatformIO Project Configuration File
+;
+;   Build options: build flags, source filter
+;   Upload options: custom upload port, speed and extra flags
+;   Library options: dependencies, extra library storages
+;   Advanced options: extra scripting
+;
+; Please visit documentation for the other options and examples
+; https://docs.platformio.org/page/projectconf.html
+
+[env:esp32dev]
+platform = espressif32
+board = esp32dev
+framework = arduino
+monitor_speed = 115200
+lib_deps = 
+    bblanchon/ArduinoJson@^7.0.4
+    marcoschwartz/LiquidCrystal_I2C@^1.1.4

18_esp_lcd_owm/src/main.cpp

@@ -0,0 +1,93 @@
+#include <Arduino.h>
+#include <WiFi.h>
+#include <HTTPClient.h>
+#include <ArduinoJson.h>
+#include <LiquidCrystal_I2C.h>
+
+// -----Konfigurace------
+const char* ssid = "ive3ap";
+const char* password = "iveiveive";
+const char* apiKey = "f70d944f638a7ae77de89435d4d23c01";
+const char* city = "Steti";
+
+LiquidCrystal_I2C lcd(0x27,16,2);
+
+unsigned long lastTime = 0;
+unsigned long timerDelay = 60000;
+
+void connectWifi() {
+  WiFi.begin(ssid,password);
+  Serial.println("Pripojovani k Wifi...");
+  lcd.clear();
+  lcd.setCursor(0,0);
+  lcd.print("Wifi Connecting");
+
+  // Přidat while na zjištění pripojování na wifi
+
+  Serial.println("\nPripojeno na Wifi");
+  Serial.print("IP:");
+  Serial.println(WiFi.localIP());
+
+  lcd.clear();
+  lcd.setCursor(0,0);
+  lcd.print("WiFi Connected");
+  delay(2000);
+}
+
+void updateWeather() {
+  if(WiFi.status() == WL_CONNECTED) {
+    HTTPClient http;
+    String serverPath = "http://api.openweathermap.org/data/2.5/weather?q=" 
+    + String(city) + "&appid=" + String(apiKey) + "&units=metric";
+
+    http.begin(serverPath.c_str());
+    int httpResponseCode = http.GET();
+
+    if (httpResponseCode > 0){
+      String payload = http.getString();
+      JsonDocument doc;
+      deserializeJson(doc,payload);
+
+      float temp = doc["main"]["temp"];
+      int humidity = doc["main"]["humidity"];
+      String description = doc["weather"][0]["description"].as<String>();
+
+      //zde přidat na odstranění diacritiky
+
+      lcd.clear();
+      lcd.setCursor(0,0);
+      lcd.print("Steti:");
+      lcd.print(temp,1);
+      lcd.print("C");
+
+      lcd.setCursor(0,1);
+      lcd.print("H:");
+      lcd.print(humidity);
+      lcd.print("% ");
+      lcd.print(description);
+
+      Serial.println("Data OK:" + String(temp) + "C, "+description);
+    }else {
+      Serial.println("Chyba HTTP: " + String(httpResponseCode));
+      lcd.clear();
+      lcd.print("API ERROR");
+    }
+    http.end();
+  }
+}
+
+void setup() {
+  Serial.begin(115200);
+  delay(2000);
+  lcd.init();
+  lcd.backlight();
+  connectWifi();
+  updateWeather();
+}
+
+void loop() {
+  if((millis() - lastTime) > timerDelay){
+    updateWeather();
+    lastTime = millis();
+  }
+}

18_esp_lcd_owm/test/README

@@ -0,0 +1,11 @@
+
+This directory is intended for PlatformIO Test Runner and project tests.
+
+Unit Testing is a software testing method by which individual units of
+source code, sets of one or more MCU program modules together with associated
+control data, usage procedures, and operating procedures, are tested to
+determine whether they are fit for use. Unit testing finds problems early
+in the development cycle.
+
+More information about PlatformIO Unit Testing:
+- https://docs.platformio.org/en/latest/advanced/unit-testing/index.html