This code works great.

`int arr_index = 0; int input = 0; String res; String temp;

void loop() { // input = analogRead(0); < ------------------------ commented // -- doLoop should be called as frequently as possible. iotWebConf.doLoop();

if (arr_index == 50){ arr_index = 0; res = temp + "]}"; temp = "{\"uid\":[" + String(input); } else{ arr_index++; temp += "," + String(input); } }`

But if I uncomment the analogRead() function, everything collapses, after each request the WiFi breaks and the connection is re-connected.

All code

`/**

IotWebConf01Minimal.ino -- IotWebConf is an ESP8266/ESP32
non blocking WiFi/AP web configuration library for Arduino.
https://github.com/prampec/IotWebConf
Copyright (C) 2020 Balazs Kelemen prampec+arduino@gmail.com
This software may be modified and distributed under the terms
of the MIT license. See the LICENSE file for details. */

/**

Example: Minimal
Description:
This example will shows the bare minimum required for IotWebConf to start up.
After starting up the thing, please search for WiFi access points e.g. with
your phone. Use password provided in the code!
After connecting to the access point the root page will automatically appears.
We call this "captive portal".
Please set a new password for the Thing (for the access point) as well as
the SSID and password of your local WiFi. You cannot move on without these steps.
You have to leave the access point before to let the Thing continue operation
with connecting to configured WiFi.
Note that you can find detailed debug information in the serial console depending
on the settings IOTWEBCONF_DEBUG_TO_SERIAL, IOTWEBCONF_DEBUG_PWD_TO_SERIAL set
in the IotWebConf.h . */

include

// -- Initial name of the Thing. Used e.g. as SSID of the own Access Point. const char thingName[] = "thing";

// -- Initial password to connect to the Thing, when it creates an own Access Point. const char wifiInitialApPassword[] = "smrtTHNG8266";

// -- Method declarations. void handleRoot(); void handleFetch();

DNSServer dnsServer; WebServer server(80);

IotWebConf iotWebConf(thingName, &dnsServer, &server, wifiInitialApPassword);

void setup() { Serial.begin(115200); Serial.println(); Serial.println("Starting up...");

// -- Initializing the configuration. iotWebConf.init();

// -- Set up required URL handlers on the web server. server.enableCORS(1); server.on("/", handleRoot); server.on("/a", handleFetch); server.on("/config", []{ iotWebConf.handleConfig(); }); server.onNotFound([](){ iotWebConf.handleNotFound(); });

Serial.println("Ready."); }

int arr_index = 0; int input = 0; String res; String temp;

void loop() { // input = analogRead(0); // -- doLoop should be called as frequently as possible. iotWebConf.doLoop();

if (arr_index == 50){ arr_index = 0; res = temp + "]}"; temp = "{\"uid\":[" + String(input); } else{ arr_index++; temp += "," + String(input); } }

/**

Handle web requests to "/" path. */ void handleRoot() { // -- Let IotWebConf test and handle captive portal requests. if (iotWebConf.handleCaptivePortal()) { // -- Captive portal request were already served. return; } String s = "<!DOCTYPE html><html lang=\"ru\"><meta name=\"viewport\" content=\"width=device-width, initial-scale=1, user-scalable=no\"/>"; s += "IotWebConf 01 Minimal"; s += "
"; s += "\n";

server.send(200, "text/html", s); }

void handleFetch(){ // -- Let IotWebConf test and handle captive portal requests. if (iotWebConf.handleCaptivePortal()) { // -- Captive portal request were already served. return; } server.send(200, "application/json", res); } `

prampec / IotWebConf

WiFi is constantly lost #282

include

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