Problems with with variables in the sketch about configmanager

[nrwiersma]

Hi,

Can you give me a simple code example that demonstrates your issue?

[Stargazer32584]

Hi,

i only want to serial print the value of "inching delay"

So, i wrote the following additional Code to extract the inching_delay from the struct:

float pause = config.inching_delay;

In the Loop, i use the Serial.print(pause); to print it to the monitor as a test. But, there are only 0. He wrote the value in the memory. But there is no value on the print.

Thank you very much,

André

[nrwiersma]

Hi,

Can you show me your actual code? Without it will not be able to help you.

[Stargazer32584]

Alright. I will so it in 4 - 6 hours, because, i'am in work and the code at home :-).

Thanks a lot..

[Stargazer32584]

Hi,

here is my Code:

#include "ConfigManager.h"

const char *settingsHTML = (char *)"/settings.html";
const char *stylesCSS = (char *)"/styles.css";
const char *mainJS = (char *)"/main.js";

struct Config {
char device_name[32];
float inching_delay;
int8_t led;
bool enabled;
} config;

struct Metadata {
int8_t version;
} meta;

ConfigManager configManager;

//Übergabe der Variablen aus dem Config - Manager/////////////////
char* mac = config.device_name;
float delaytime = config.inching_delay;
int led = config.led;

//Millis///
long previousMillis = 0;
long interval = 2000;

void APCallback(WebServer *server) {
server->on("/styles.css", HTTPMethod::HTTP_GET, server{
configManager.streamFile(stylesCSS, mimeCSS);
});

DebugPrintln(F("AP Mode Enabled. You can call other functions that should run after a mode is enabled ... "));

}

void APICallback(WebServer *server) {
server->on("/disconnect", HTTPMethod::HTTP_GET, server{
configManager.clearWifiSettings(false);
});

server->on("/settings.html", HTTPMethod::HTTP_GET, server{
configManager.streamFile(settingsHTML, mimeHTML);
});

// NOTE: css/js can be embedded in a single page HTML
server->on("/styles.css", HTTPMethod::HTTP_GET, server{
configManager.streamFile(stylesCSS, mimeCSS);
});

server->on("/main.js", HTTPMethod::HTTP_GET, server{
configManager.streamFile(mainJS, mimeJS);
});

server->on("/reboot", HTTPMethod::HTTP_GET, server{
ESP.restart();
});

}

void setup() {
Serial.begin(115200);
DEBUG_MODE = true;
DebugPrintln(F(""));

meta.version = 3;

// Setup config manager
configManager.setAPName("Demo");
configManager.setAPFilename("/index.html");

// Settings variables
configManager.addParameter("device_name", config.device_name, 32);
configManager.addParameter("inching_delay", &config.inching_delay);
configManager.addParameter("led", &config.led);
configManager.addParameter("enabled", &config.enabled);

// Meta Settings
configManager.addParameter("version", &meta.version, get);

// Init Callbacks
configManager.setAPCallback(APCallback);
configManager.setAPICallback(APICallback);

configManager.begin(config);
}

void loop() {

configManager.loop(); // Um das der Webseitenaufbau der HTML - Datei sauber erfolgen kann, kein delay im Loop einbauen. Besser Millis !!.

unsigned long currentMillis = millis();

if(currentMillis - previousMillis > interval) {
previousMillis = currentMillis;
Serial.print(" MAC :");
Serial.println(mac);
Serial.println("-------------------------------------");
Serial.print(" Pause :");
Serial.println(delaytime);
Serial.println("-------------------------------------");
Serial.print("Pausenzeit :");
Serial.println(led);
Serial.println("-------------------------------------");
}

// Add your loop code here
}

[nrwiersma]

So the issue is that delaytime is set before the config is read by ConfigManager. Move float delaytime = config.inching_delay; to just above the Serial.println. To be clear float delaytime = config.inching_delay; is taking the current value of config.inching_delay and will not be updated as it in not a pointer. This is the source of your issue.

[Stargazer32584]

Hi,
thank you for your answer !
I put the code directly above the Serial.prints in the loop. Now, the values from mac and led are correct. But the float is 0.00.
Whatever i wrote in the /settings.html in the browser. The value is 0.00 .

That's the only point i had with your tip.

Thanks a lot for spending your time.

[Stargazer32584]

Hi,

so i tested the code. The problems are homemade and sitting in the front of the monitor #-/.

The code runs perfectly. Thank you very much for your support !

Best regards to South Africa from Löhne, Germany...

André

[nrwiersma]

Awesome, glad you got it sorted out.

Enjoy,
Nick