ESP32-CAM Video Stream on Blynk

PeteKnight · November 18, 2020, 8:09pm

Presumably here:

geeksville/AutoWifi/blob/master/README.md

# AutoWifi

Making ESP32 wifi setup trivial with Android/iOS helper apps.  5 lines of code and no more hardcoded keys.

Note: This library works, but it depends on the ESP32/TI SmartConfig standard.  That standard has _problems_
mainly it can't work with mixed 5G/2.4G networks and modern cellphones.  Therefore for all of my new projects
I'm using [AutoConnect](https://github.com/Hieromon/AutoConnect).  I just discovered AutoConnect, it is quite nice.  You should
probably use it rather than this library.

# Usage

I poked around on the internet for documentation on the usage of the ESP32 SmartConfig
wifi setup flow.  I found some tutorials, but it seems painful that people keep having
to reinvent the standard boilerplate of: talking to the app, saving prefs in EEPROM,
letting the user 'factory reset' as needed etc...  So I made this simple little lib.

You can add it to your ESP32 project trivially - thus removing the barbaric practice of
telling 'users' to edit a .cpp file to insert their SSID and password.  Instead users
can run an Android/iOS app and have a polished process for starting your app on new hardware.
You can even just give them bins and they can skip compilation or you can use this code to

This file has been truncated. show original

but looking at how the readme file says that it should be used…

Just replace your existing “WiFi.begin(ssid, password)” call with:
  #include <AutoWifi.h>
  AutoWifi a;
  a.startWifi();

I don’t think its actually used in the sketch in post#25 because there is no AutoWifi object created with AutoWifi a; or equivalent and the regular WiFi.begin(ssid, pass); command is used.

I’d suggest that you comment out the #include <AutoWifi.h> line of code and see what happens.

Pete.

axel95 · November 18, 2020, 8:26pm

Good evening Pete,
always very kind and helpful
I tried to comment #include <AutoWifi.h> but the arduino ide gives me an error …

Luca

PeteKnight · November 18, 2020, 8:31pm

Is that an error that’s connected to AutoWifi?
If so, then I’d suggest installing the library.

Pete.

axel95 · November 18, 2020, 8:34pm

I tried to install it but the ide doesn’t recognize it
Luca

axel95 · November 18, 2020, 8:35pm

i also bought an ESP32 camera module but i can’t connect the camera with blynk app using videostriming widget :((

PeteKnight · November 18, 2020, 8:38pm

You need to provide more information about the compiler error messages you are getting, and the steps you followed when installing the library and the error messages that you received as part of that process.

Pete.

axel95 · November 18, 2020, 8:40pm

ok, when I compile the sketch it gives me this error

the library I downloaded from the site that recommended me and included the zip file from arduino with add library

PeteKnight · November 18, 2020, 8:52pm

You should copy and paste the full error message.

Pete.

axel95 · November 18, 2020, 9:02pm

ok
`C:\Users\miale\AppData\Local\Temp\arduino_modified_sketch_488109\sketch_nov18a.ino:7:28: fatal error: OV2640Streamer.h: No such file or directory

compilation terminated.

Più di una libreria trovata per “WiFi.h”
Usata: C:\Users\miale\AppData\Local\Arduino15\packages\esp32\hardware\esp32\1.0.4\libraries\WiFi
Non usata: C:\Program Files (x86)\Arduino\libraries\WiFi
Più di una libreria trovata per “WebServer.h”
Usata: C:\Users\miale\AppData\Local\Arduino15\packages\esp32\hardware\esp32\1.0.4\libraries\WebServer
Non usata: C:\Users\miale\OneDrive\Documenti\Arduino\libraries\Webduino-master
exit status 1
Errore durante la compilazione per la scheda AI Thinker ESP32-CAM.`

PeteKnight · November 18, 2020, 10:24pm

This is your problem.
I think you need to install this library…

Pete.

axel95 · November 18, 2020, 10:46pm

thanks Pete

I saved the correct library imported the library from the arduino ide I compiled the program and it gives me this error

Più di una libreria trovata per “WiFi.h”
Usata: C:\Users\miale\AppData\Local\Arduino15\packages\esp32\hardware\esp32\1.0.4\libraries\WiFi
Non usata: C:\Program Files (x86)\Arduino\libraries\WiFi
Più di una libreria trovata per “WebServer.h”
Usata: C:\Users\miale\AppData\Local\Arduino15\packages\esp32\hardware\esp32\1.0.4\libraries\WebServer
Non usata: C:\Users\miale\OneDrive\Documenti\Arduino\libraries\Webduino-master
exit status 1
‘class CRtspSession’ has no member named ‘broadcastCurrentFrame’

axel95 · November 19, 2020, 8:27pm

has anyone had a problem like this?

Marco_Francescato · March 31, 2021, 1:58pm

Hi, I’m tryng to edit the sketch to control with Blynk the build-in led but it doesnt work…
Sometimes i can control the LED with blynk but the stream doesn’t work or viceversa.

Thanks

this is the sketch:

#define BLYNK_PRINT Serial

#include <BlynkSimpleEsp32.h>

#include "OV2640.h"
#include <WiFi.h>
#include <WebServer.h>
#include <WiFiClient.h>
#include <AutoWifi.h>

#include "SimStreamer.h"
#include "OV2640Streamer.h"
#include "OV2640.h"
#include "CRtspSession.h"



char auth[] = "-----3";

char ssid[] = "-----";
char pass[] = "------R";


#define USEBOARD_AITHINKER

#define ENABLE_WEBSERVER


OV2640 cam;

WebServer server(80);

void handle_jpg_stream(void)
{
  WiFiClient client = server.client();
  String response = "HTTP/1.1 200 OK\r\n";
  response += "Content-Type: multipart/x-mixed-replace; boundary=frame\r\n\r\n";
  server.sendContent(response);

  while (1)
  {
    cam.run();
    if (!client.connected())
      break;
    response = "--frame\r\n";
    response += "Content-Type: image/jpeg\r\n\r\n";
    server.sendContent(response);

    client.write((char *)cam.getfb(), cam.getSize());
    server.sendContent("\r\n");
    if (!client.connected())
      break;
  }
}

void handle_jpg(void)
{
  WiFiClient client = server.client();

  cam.run();
  if (!client.connected())
  {
    return;
  }
  String response = "HTTP/1.1 200 OK\r\n";
  response += "Content-disposition: inline; filename=capture.jpg\r\n";
  response += "Content-type: image/jpeg\r\n\r\n";
  server.sendContent(response);
  client.write((char *)cam.getfb(), cam.getSize());
}

void handleNotFound()
{
  String message = "Server is running!\n\n";
  message += "URI: ";
  message += server.uri();
  message += "\nMethod: ";
  message += (server.method() == HTTP_GET) ? "GET" : "POST";
  message += "\nArguments: ";
  message += server.args();
  message += "\n";
  server.send(200, "text/plain", message);
}


void setup()
{


  Serial.begin(9600);

  Blynk.begin(auth, ssid, pass, IPAddress(192, 168, 1, 103), 7443);

  while (!Serial)
  {
    ;
  }

  int camInit =


    cam.init(esp32cam_aithinker_config);


  Serial.printf("Camera init returned %d\n", camInit);

  IPAddress ip;

  WiFi.begin(ssid, pass);

  while (WiFi.status() != WL_CONNECTED)
  {
    delay(500);
    Serial.print(F("."));
  }
  ip = WiFi.localIP();
  Serial.println(F("WiFi connected"));
  Serial.println("");
  Serial.println(ip);
  Serial.print("Stream Link: http://");
  Serial.print(ip);
  Serial.println("/");

  server.on("/", HTTP_GET, handle_jpg_stream);
  server.on("/jpg", HTTP_GET, handle_jpg);
  server.onNotFound(handleNotFound);
  server.begin();

}

CStreamer *streamer;
CRtspSession *session;
WiFiClient client; // FIXME, support multiple clients



void loop()
{


  Blynk.run();

  server.handleClient();

}

Thank’s to every one will help me…

Jonathan_Nikkel · June 16, 2023, 8:09am

If anyone is still stuck on this with an iphone, all I had to do to get it to work is to disable the use of private IP address in iPhone Wifi settings. If you are still wanting to use this, you’ll likely have to open up the subnet mask wider.