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Topic: Problem with Serial Monitor - Lots of testing, exact error found (Read 489 times) previous topic - next topic

kennethmod

heres the code i run that works fine.. as an example i was working from. Here the serial monitor does print out information
see this to see what it prints out (image going here when approved)


note: i changed the names of the registered ints and then also changed which pins they assign to. I am using a wemos d1 mini. I have tried this code on esp8266, wemos d1 r2, and multiple other varieties. The arduino IDE doesn't have wemos d1 mini, BUT the default code with no changes works as a esp8266 upload, so i use that. I ruled out that it's not an issue with the "tools" tab.

Code: [Select]

#include <ESP8266WiFi.h>
#include <DNSServer.h>
#include <ESP8266WebServer.h>
#include <WiFiManager.h>         // https://github.com/tzapu/WiFiManager

// Set web server port number to 80
WiFiServer server(80);

// Variable to store the HTTP request
String header;

// Auxiliar variables to store the current output state
String output5State = "off";
String output4State = "off";
///////////////////////////////////////////////////// MIND THIS AREA! IT'S WHERE OUR CHANGES ARE, WE // CHANGE  THE PARAMETERS NAMES AND WHICH PINS THEY ASSIGN.. AND THEN CHANGE CODE // //EVERYWHERE RELATING TO THOSE PARAMETERS. See next set of code
// Assign output variables to GPIO pins
int output5 = 5;


int output4 = 4;
/////////////////////////////////////////////////////////////////////
void setup() {
  Serial.begin(9600);
  
  // Initialize the output variables as outputs
  pinMode(output5, OUTPUT);
  pinMode(output4, OUTPUT);
  // Set outputs to LOW
  digitalWrite(output5, LOW);
  digitalWrite(output4, LOW);

  // WiFiManager
  // Local intialization. Once its business is done, there is no need to keep it around
  WiFiManager wifiManager;
  
  // Uncomment and run it once, if you want to erase all the stored information
  wifiManager.resetSettings();
  
  // set custom ip for portal
  //wifiManager.setAPConfig(IPAddress(10,0,1,1), IPAddress(10,0,1,1), IPAddress(255,255,255,0));

  // fetches ssid and pass from eeprom and tries to connect
  // if it does not connect it starts an access point with the specified name
  // here  "AutoConnectAP"
  // and goes into a blocking loop awaiting configuration
  wifiManager.autoConnect("AutoConnectAP", "password");
  // or use this for auto generated name ESP + ChipID
  //wifiManager.autoConnect();
  
  // if you get here you have connected to the WiFi
  Serial.println("Connected.");
  
  server.begin();
}

void loop(){
  WiFiClient client = server.available();   // Listen for incoming clients

  if (client) {                             // If a new client connects,
    Serial.println("New Client.");          // print a message out in the serial port
    String currentLine = "";                // make a String to hold incoming data from the client
    while (client.connected()) {            // loop while the client's connected
      if (client.available()) {             // if there's bytes to read from the client,
        char c = client.read();             // read a byte, then
        Serial.write(c);                    // print it out the serial monitor
        header += c;
        if (c == '\n') {                    // if the byte is a newline character
          // if the current line is blank, you got two newline characters in a row.
          // that's the end of the client HTTP request, so send a response:
          if (currentLine.length() == 0) {
            // HTTP headers always start with a response code (e.g. HTTP/1.1 200 OK)
            // and a content-type so the client knows what's coming, then a blank line:
            client.println("HTTP/1.1 200 OK");
            client.println("Content-type:text/html");
            client.println("Connection: close");
            client.println();
            ///////////////////////////////////////////////////////////////////////////////
            // turns the GPIOs on and off
            if (header.indexOf("GET /5/on") >= 0) {
              Serial.println("GPIO 5 on");
              output5State = "on";
              digitalWrite(output5, HIGH);
            } else if (header.indexOf("GET /5/off") >= 0) {
              Serial.println("GPIO 5 off");
              output5State = "off";
              digitalWrite(output5, LOW);
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
              /////////////////////
            } else if (header.indexOf("GET /4/on") >= 0) {
              Serial.println("GPIO 4 on");
              output4State = "on";
              digitalWrite(output4, HIGH);
            } else if (header.indexOf("GET /4/off") >= 0) {
              Serial.println("GPIO 4 off");
              output4State = "off";
              digitalWrite(output4, LOW);
            }
            ////////////////////////////////////////
            // Display the HTML web page
            client.println("<!DOCTYPE html><html>");
            client.println("<head><meta name=\"viewport\" content=\"width=device-width, initial-scale=1\">");
            client.println("<link rel=\"icon\" href=\"data:,\">");
            // CSS to style the on/off buttons
            // Feel free to change the background-color and font-size attributes to fit your preferences
            client.println("<style>html { font-family: Helvetica; display: inline-block; margin: 0px auto; text-align: center;}");
            client.println(".button { background-color: #195B6A; border: none; color: white; padding: 16px 40px;");
            client.println("text-decoration: none; font-size: 30px; margin: 2px; cursor: pointer;}");
            client.println(".button2 {background-color: #77878A;}</style></head>");
            // Web Page Heading
            client.println("<body><h1>ESP8266 Web Server</h1>");
            
            // Display current state, and ON/OFF buttons for GPIO 5  
            client.println("<p>GPIO 5 - State " + output5State + "</p>");
            // If the output5State is off, it displays the ON button      
            if (output5State=="off") {
              client.println("<p><a href=\"/5/on\"><button class=\"button\">ON</button></a></p>");
            } else {
              client.println("<p><a href=\"/5/off\"><button class=\"button button2\">OFF</button></a></p>");
            }



this is the adjusted code:
Code: [Select]

#include <ESP8266WiFi.h>
#include <DNSServer.h>
#include <ESP8266WebServer.h>
#include <WiFiManager.h>         // https://github.com/tzapu/WiFiManager

// Set web server port number to 80
WiFiServer server(80);

// Variable to store the HTTP request
String header;

// Auxiliar variables to store the current output state
String output5State = "off";
String output4State = "off";

// Assign output variables to GPIO pins
int Relay = 1;
int Led = 2;

int output4 = 4;

void setup() {
  Serial.begin(9600);
  
  // Initialize the output variables as outputs
  pinMode(Relay, OUTPUT);
  pinMode(output4, OUTPUT);
  // Set outputs to LOW
  digitalWrite(Relay, LOW);
  digitalWrite(output4, LOW);


this is as far of the code that really changed. Anything related to the int change has been reflected through the remainder of the code and uploads fine. I could not post the full second code

Juraj

the esp8266 Arduino boards package has "Wemos/Lolin D1 R2 & mini"

io 1 is Serial TX

kennethmod

oh man - i'm going to give the adjusted a go. Appreciate the reply Juraj. I had run out of ideas.


kennethmod

Holy WOW - that did it! OH man. That's excellent. Imagine, i worked at this bug from 5 to 11. Jeeez.
I changed the pin from 1 to 3 and it works. WOW. Got to appreciate the errors that Arduino IDE DOES throw. wow.
Thanks @Juraj

Juraj

Holy WOW - that did it! OH man. That's excellent. Imagine, i worked at this bug from 5 to 11. Jeeez.
I changed the pin from 1 to 3 and it works. WOW. Got to appreciate the errors that Arduino IDE DOES throw. wow.
Thanks @Juraj
3 is Serial RX

use the pins named labeled on PCB. D1 to D8. (D1 is not 1)

kennethmod

3 is Serial RX

use the pins named labeled on PCB. D1 to D8. (D1 is not 1)
3 was always high, 1 D1 was the pin i took it off of and it started to work.
3 is what i changed it to, that was always high. 1 was where it was, that may have been always low?

so i should use them labeled as D1 in the IDE.
i have the pins d1-d8. I had it on D1 when it wasn't working. And D3 is reading always high, with not configured.

i decided to go with a pin that was not PWM enabled (pin D5) and it doesn't read more than low.

going to try this suggestion.. though i had used D1 (it read always low), used D3 (it always read high), and used D5 (it's always reading low). I have each of them configured in sequence as... 1, then 3, then 5. Are they supposed to be labeled by which pin on the controller it is? like D5 is actually pin 13 or whatever



EDIT: oh yeah - give this a look. https://chewett.co.uk/blog/1066/pin-numbering-for-wemos-d1-mini-esp8266/
it seems that the pins are labeled like that, here they wrote it out as that's how it translates to IDE. first i've seen things like this. Appreciate it further Juraj

kennethmod

WiFi has been super finicky to work with so far otherwise.. so i'm not sure whether my errors are with server or with the IDE.

Juraj

EDIT: oh yeah - give this a look. https://chewett.co.uk/blog/1066/pin-numbering-for-wemos-d1-mini-esp8266/
it seems that the pins are labeled like that, here they wrote it out as that's how it translates to IDE. first i've seen things like this.
you missed replay #3?

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