ESP8266wifi | ESP8266 Arduino library with built in reconnect

Tried to position text In an Image exactly like in the example from w3schools. It works fine in my space at w3schools. When I look at the css in the browser:

Hope you're doing fine! I'm starting to learn about setting up WebServers on ESP8266, so, I'm developing this small project to start into it.

Basically, it's a WebServer with my ESP8266 working as a AP, where I input an HTML form with 6 input values that I'll receive on my ESP8266.

At this point, I've 2 big problems:

1st and most important, the server, the HTML script, & the AP work well overall, since once I upload the code on the ESP8266, and connect to the AP, I can access the form with no issues ( http://192.168.4.1/ ). The problem comes when I input the values and click "SET" to submit them, because it just prints: Not found: /action_page.php

I don't know where's the issue, I tried setting some code lines to redirect the acces if the server is not found, but it didn't even accessed the main page.

2nd, my serial monitor doesn't print any line in this code, with other codes, it prints normally, but this one doen't do it. So I don't know wat I'm doing wrong.

I'll appreciate any advice, thanks in advance! This is my current code:

I'm trying to use D1 mini to fetch some data from website. I created an API key on Thingspeak ThingHttp. However, the client didn't connect properly. I got "connection failed" from the Serial monitor.

Here is my code. I think they are almost the same as this.

I am working on a project where I am trying to turn on LEDs over wifi using the Blynk app through an ESP8266 and an Arduino uno. I believe the circuit is set up properly as I was able to run an empty script and through the serial monitor send the "AT" command and get feedback. Also the ESP8266 is showing up on my wifi settings. However, from there I tried to setup a quickstart device on the blynk app and that's where I am stuck.

The major error seems to be that I can't download the necessary library, "ESP8266_Lib.h", in order for the program, Blynk initially gives you, to run. I tried to download the latest version of the blynk library on github but that still did not help.

After this phase of the project, I hope to move to an adrafruit gemma board, and hope that won't cause any further issues. The code Blynk provided and the error message is below: '''

This is shown in the mosquitto log :

How can I make the WifiManager library work on a ESP32 board? I'm using PlatformIO to develop my code.

Here are my imports:

I know I am successfully connected to the network as it's visible in my phone's hotspot. However I am unable to get the time using library through NTP server.

Thanks in advance. I will really appreciate your suggestions.

platformio.int

So I got the following situation: I'm trying to publish data from an DHT11 sensor (sensor is working just fine) via mqtt to my broker. But the messages don't get published - I'm testing it via client.state, which returns 5, which means "the client was not authorized to connect" (API Documentation).

This is my code (I replaced sensible data with XXs):

I'm trying to print the return value(WiFi.localIP) on my display from the library ESP8266WiFi. But I'm getting an error. For the display I'm using the SSD1306 library.

The purpose of this is to print the IP adress of the ESP8266 on the display.

ERROR: