Blynk Edgent without SSL

Mr.xs · March 5, 2023, 8:37pm

Hello,
I’ve got a question for you.
I’m using esp32 with WiFi connection, Platformio and Blynk IoT Edgent with latest library.
I’m using Blynk Edgent so I have:
#include “BlynkEdgent.h”
…
BlynkEdgent.begin();
…
BlynkEdgent.run();

and my question is, how can I connect to blynk cloud by 80 or 8080 port not 443 cause it’s bloked for me???
I’ve read on forum that I just need to change #include <BlynkSimpleEsp32_SSL.h> to #include <BlynkSimpleEsp32.h> but I don’t have one in my code. After opening BlynkEdgent.h there is #include <BlynkSimpleEsp32_SSL.h> but even if I change it to #include <BlynkSimpleEsp32.h> it still connects by 443 port.

PeteKnight · March 5, 2023, 10:40pm

It’s in BlynkEdgent.h, line 8

But line 108 of Settings.h defines the port as 443, so this may also need changing I guess.

Pete.

Mr.xs · March 6, 2023, 2:56pm

So, I changed line 8 in BlynkEdgent to BlynkSimpleEsp32.h and line 108 of Settings.h to port 80, but still nothing. It still connects by 443 port.

PeteKnight · March 6, 2023, 3:40pm

Have you re-provisioned the device? I believe they the port is stored in NVRAM.

Pete.

Mr.xs · March 6, 2023, 4:10pm

Yes, I have held BOOT button for 10sec and Serial monitor said resetting configuration, but it still connects by 443 port.

vshymanskyy · March 9, 2023, 9:12pm

There’s one more line to change:

github.com

blynkkk/blynk-library/blob/503934100b693b12cc51c1cb6793c3ba5bd89eb8/examples/Blynk.Edgent/Edgent_ESP32/ConfigMode.h#L243


server.on("/config", []() {
  DEBUG_PRINT("Applying configuration...");
  String ssid = server.arg("ssid");
  String ssidManual = server.arg("ssidManual");
  String pass = server.arg("pass");
  if (ssidManual != "") {
    ssid = ssidManual;
  }
  String token = server.arg("blynk");
  String host  = server.arg("host");
  String port  = server.arg("port_ssl");

  String ip   = server.arg("ip");
  String mask = server.arg("mask");
  String gw   = server.arg("gw");
  String dns  = server.arg("dns");
  String dns2 = server.arg("dns2");

  bool forceSave  = server.arg("save").toInt();

  String content;

Change it to:

String port  = server.arg("port");

Erase flash, re-program, re-configure.

But, removing encryption is VERY insecure. Anyone with access to your network could issue a MITM attack and then overtake control over your devices. Just be warned…

Mr.xs · March 9, 2023, 10:47pm

Thank you so much, after this change now it works.
I’m awarend of MITM attacts.