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Add SD webpage example - wifi, platformio

main
Jarda 2023-08-21 15:30:52 +02:00
parent 7e23e437d6
commit c379da94c1
8 changed files with 275 additions and 0 deletions
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5
SW/ESPlan_SD_webpage/.gitignore vendored Normal file
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.pio
.vscode/.browse.c_cpp.db*
.vscode/c_cpp_properties.json
.vscode/launch.json
.vscode/ipch

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SW/ESPlan_SD_webpage/.vscode/extensions.json vendored Normal file
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{
// 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"
]
}

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SW/ESPlan_SD_webpage/include/README Normal file
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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 usual convention is to give header files names that end with `.h'.
It is most portable to use only letters, digits, dashes, and underscores in
header file names, and at most one dot.
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
SW/ESPlan_SD_webpage/index.htm Normal file
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<!DOCTYPE html>
<html>
<head>
<title>Web page</title>
</head>
<body>
<h1>Hello, world!</h1>
<p>This is example web page.</p>
</body>
</html>

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SW/ESPlan_SD_webpage/lib/README Normal file
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This directory is intended for project specific (private) libraries.
PlatformIO will compile them to static libraries and link into executable file.
The source code of each library should be placed in a an own separate directory
("lib/your_library_name/[here are source files]").
For example, see a structure of the following two libraries `Foo` and `Bar`:
|--lib
| |
| |--Bar
| | |--docs
| | |--examples
| | |--src
| | |- Bar.c
| | |- Bar.h
| | |- library.json (optional, 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
and a contents of `src/main.c`:
```
#include <Foo.h>
#include <Bar.h>
int main (void)
{
...
}
```
PlatformIO Library Dependency Finder will find automatically dependent
libraries scanning project source files.
More information about PlatformIO Library Dependency Finder
- https://docs.platformio.org/page/librarymanager/ldf.html

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SW/ESPlan_SD_webpage/platformio.ini Normal file
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; 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

139
SW/ESPlan_SD_webpage/src/main.cpp Normal file
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/* Webserver SD webpage example for LaskaKit ESPlan
* Place index.htm file on SD card or create your own html example, rename it to index.htm and place it on SD card
* After boot connect to http://esplan.local or to IP adress of ESP32 (for example 192.168.0.98)
* You should see webpage saved on SD card
* Email:podpora@laskakit.cz
* Web:laskakit.cz
*/
#include <Arduino.h>
#include <WiFi.h>
#include <WiFiClient.h>
#include <WebServer.h>
#include <ESPmDNS.h>
#include <SPI.h>
#include <SD.h>
const char *ssid = "WiFi_6";
const char *password = "WiFiBurian6";
const char *host = "esplan";
// SD card defines
#define SCK 14
#define MISO 12
#define MOSI 13
#define CS 15
SPIClass spi = SPIClass(HSPI);
WebServer server(80);
void handleNotFound()
{
String message = "SD card or index.htm file not detected\n\n";
message += "URI: ";
message += server.uri();
message += "\nMethod: ";
message += (server.method() == HTTP_GET) ? "GET" : "POST";
message += "\nArguments: ";
message += server.args();
message += "\n";
for (uint8_t i = 0; i < server.args(); i++)
{
message += " NAME:" + server.argName(i) + "\n VALUE:" + server.arg(i) + "\n";
}
server.send(404, "text/plain", message);
Serial.print(message);
}
void handleRoot()
{
spi.begin(SCK, MISO, MOSI, CS);
if (SD.begin(CS, spi))
{
Serial.println("SD Card initialized.");
}
else
{
handleNotFound();
return;
}
File dataFile = SD.open("/index.htm");
if (!dataFile)
{
SD.end();
spi.end();
handleNotFound();
return;
}
if (server.streamFile(dataFile, "text/html") != dataFile.size())
{
Serial.println("Sent less data than expected!");
}
dataFile.close();
SD.end();
spi.end();
}
void wifi_setup()
{
uint8_t i = 0;
WiFi.mode(WIFI_STA);
WiFi.begin(ssid, password);
Serial.print("Connecting to ");
Serial.println(ssid);
// Wait for connection
while (WiFi.status() != WL_CONNECTED && i++ < 20)
{
Serial.print(".");
delay(500);
}
if (i == 21)
{
Serial.print("\n");
Serial.print("Could not connect to ");
Serial.println(ssid);
while (1)
{
delay(500);
}
}
Serial.print("\n");
Serial.print("Connected! IP address: ");
Serial.println(WiFi.localIP());
}
void DNS_setup()
{
if (MDNS.begin(host))
{
MDNS.addService("http", "tcp", 80);
Serial.println("MDNS responder started");
Serial.print("You can now connect to http://");
Serial.print(host);
Serial.println(".local");
}
}
void setup(void)
{
Serial.begin(115200);
Serial.print("\n");
wifi_setup();
DNS_setup();
server.on("/", handleRoot); // Main page
server.onNotFound(handleNotFound);
server.begin();
Serial.println("HTTP server started");
}
void loop(void)
{
server.handleClient();
delay(2); // allow the cpu to switch to other tasks
}

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SW/ESPlan_SD_webpage/test/README Normal file
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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