wifi basics

10_esp_wifi_basic/.gitignore

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

10_esp_wifi_basic/.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"
+    ]
+}

10_esp_wifi_basic/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

10_esp_wifi_basic/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

10_esp_wifi_basic/platformio.ini

@@ -0,0 +1,15 @@
+; 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

10_esp_wifi_basic/src/00_prejmenujte_soubor_na_main.cpp_kvuli_platformio.txt

@@ -0,0 +1 @@
+

10_esp_wifi_basic/src/klient.cpp.txt

@@ -0,0 +1,39 @@
+#include <WiFi.h>
+
+const char* ssid = "ive3ap";
+const char* password = "iveiveive";
+const char* myHostname = "esp-prijmeni";
+WiFiServer server(80);
+
+void setup() {
+    Serial.begin(115200);
+    Serial.print("Nastavuji jmeno zarizeni na:");
+    Serial.println(myHostname);
+    WiFi.setHostname(myHostname);
+    Serial.print("Pripojuji se k siti:");
+    Serial.println(ssid);
+    WiFi.begin(ssid,password);
+    while (WiFi.status() != WL_CONNECTED){
+        delay(200);
+        Serial.print(".");
+    }
+    Serial.println("");
+    Serial.println("WiFi Pripojena");
+    //vypsání ip adresy
+    Serial.print("IP Adresa:");
+    Serial.println(WiFi.localIP());
+    //zapnutí wifi serveru pro zjistitelnost na sítí
+    server.begin();
+    Serial.println("server spusten na portu 80.");
+}
+void loop() {
+    if (WiFi.status() == WL_CONNECTED)
+    {
+        Serial.print("Signal (");
+        Serial.print(myHostname);
+        Serial.print("): ");
+        Serial.print(WiFi.RSSI());
+        Serial.println(" dBm");
+    }
+    delay(5000);
+}

10_esp_wifi_basic/src/sken.cpp.txt

@@ -0,0 +1,34 @@
+#include <Arduino.h>
+#include <WiFi.h>
+
+void setup() {
+  Serial.begin(115200);
+  //nastavíme ESP na stanici aby se to chovalo jako "klient"
+  WiFi.mode(WIFI_STA);
+  WiFi.disconnect();
+  delay(100);
+  Serial.println("WiFi skener pripraven");
+}
+
+void loop() {
+  Serial.println("Skenovani startuje...");
+  int n = WiFi.scanNetworks();
+  Serial.println("Skenovani dokonceno");
+  if (n == 0) {
+    Serial.println("Zadne site nebyly nalezny.");
+  } else {
+    for (int i = 0; i < n; i++){
+      Serial.print(i+1);
+      Serial.print(": ");
+      Serial.print(WiFi.SSID(i));
+      Serial.print("| Signal: ");
+      Serial.print(WiFi.RSSI(i));
+      Serial.print(" dBm |");
+
+      Serial.println((WiFi.encryptionType(i) == WIFI_AUTH_OPEN)?"[Otevtena]":"[Zabezpecena]");
+      delay(10);
+    }    
+  }
+  Serial.println("");
+  delay(10000);
+}

10_esp_wifi_basic/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