From cfde08e2b13c291d5bfd5a40d239b4416a75c478 Mon Sep 17 00:00:00 2001 From: KubMakCZ Date: Fri, 13 Mar 2026 09:25:37 +0100 Subject: [PATCH] wifi scan --- 12_esp_sken/.gitignore | 5 +++ 12_esp_sken/.vscode/extensions.json | 10 +++++ 12_esp_sken/include/README | 37 ++++++++++++++++++ 12_esp_sken/lib/README | 46 ++++++++++++++++++++++ 12_esp_sken/platformio.ini | 15 ++++++++ 12_esp_sken/src/main.cpp | 60 +++++++++++++++++++++++++++++ 12_esp_sken/test/README | 11 ++++++ 7 files changed, 184 insertions(+) create mode 100644 12_esp_sken/.gitignore create mode 100644 12_esp_sken/.vscode/extensions.json create mode 100644 12_esp_sken/include/README create mode 100644 12_esp_sken/lib/README create mode 100644 12_esp_sken/platformio.ini create mode 100644 12_esp_sken/src/main.cpp create mode 100644 12_esp_sken/test/README diff --git a/12_esp_sken/.gitignore b/12_esp_sken/.gitignore new file mode 100644 index 0000000..89cc49c --- /dev/null +++ b/12_esp_sken/.gitignore @@ -0,0 +1,5 @@ +.pio +.vscode/.browse.c_cpp.db* +.vscode/c_cpp_properties.json +.vscode/launch.json +.vscode/ipch diff --git a/12_esp_sken/.vscode/extensions.json b/12_esp_sken/.vscode/extensions.json new file mode 100644 index 0000000..080e70d --- /dev/null +++ b/12_esp_sken/.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" + ] +} diff --git a/12_esp_sken/include/README b/12_esp_sken/include/README new file mode 100644 index 0000000..49819c0 --- /dev/null +++ b/12_esp_sken/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 diff --git a/12_esp_sken/lib/README b/12_esp_sken/lib/README new file mode 100644 index 0000000..9379397 --- /dev/null +++ b/12_esp_sken/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 +#include + +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 diff --git a/12_esp_sken/platformio.ini b/12_esp_sken/platformio.ini new file mode 100644 index 0000000..457ca3e --- /dev/null +++ b/12_esp_sken/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 diff --git a/12_esp_sken/src/main.cpp b/12_esp_sken/src/main.cpp new file mode 100644 index 0000000..fe44e8d --- /dev/null +++ b/12_esp_sken/src/main.cpp @@ -0,0 +1,60 @@ +#include +#include +#include +const char* ssid = "ive3ap"; +const char* password = "iveiveive"; +const char* myHostname = "esp-prijmeni"; +String device_name = "esp-prijmeni"; +WebServer server(80); +void scanNetwork() { + IPAddress ip = WiFi.localIP(); + Serial.printf("\n-- Sken %d.%d.%d.1-254 --\n",ip[0],ip[1],ip[2]); + int found = 0; + for (int i = 1; i < 255; i++){ + IPAddress target(ip[0],ip[1],ip[2],i); + WiFiClient client; + if(client.connect(target,80,60)){ + found++; + Serial.printf("\n + %s",target.toString().c_str()); + if(target == ip) Serial.print("<< JA"); + client.stop(); + } + } + Serial.printf("\nNalezeno: %d zarizeni",found); +} + +void setup() { + Serial.begin(115200); + delay(100); + WiFi.setHostname(myHostname); + Serial.print("Nastavuji jmeno na: "); + Serial.println(myHostname); + Serial.print("Pripojuji se k siti: "); + Serial.println(ssid); + WiFi.begin(ssid,password); + while (WiFi.status() != WL_CONNECTED) { + delay(50); + Serial.print("."); + } + Serial.println("Pripojeno"); + Serial.print("Moje IP adresa je "); + Serial.println(WiFi.localIP()); + //HTPP Server i se základní odpovědí + server.on("/", []() { + server.send(200,"text/plain","ESP32: " + device_name +"\nIP: "+ WiFi.localIP().toString()); + }); + server.begin(); + Serial.println("HTTP server zapnuty na portu 80 pro zjisteni na siti"); + scanNetwork(); +} + +void loop() { + server.handleClient(); + + //opakovaný sken + static unsigned long lastScan = 0; + if (millis() - lastScan > 20000){ + lastScan = millis(); + scanNetwork(); + } +} diff --git a/12_esp_sken/test/README b/12_esp_sken/test/README new file mode 100644 index 0000000..9b1e87b --- /dev/null +++ b/12_esp_sken/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