Problem connecting to websockets server #43
Description
I created this sketch but it gets this error message in browser:
Settings-web v1.3.3
72WebSocket connection to 'ws:/' failed: WebSocket is closed before the connection is established.
script.js?857bfbda46b61d04e47d:1 WebSocket connection to 'ws://10.1.10.189:81/' failed: WebSocket is closed before the connection is established.
(anonymous) @ script.js?857bfbda46b61d04e47d:1
setTimeout (async)
open @ script.js?857bfbda46b61d04e47d:1
init @ script.js?857bfbda46b61d04e47d:1
parse @ script.js?857bfbda46b61d04e47d:1
requset @ script.js?857bfbda46b61d04e47d:1
await in requset (async)
load @ script.js?857bfbda46b61d04e47d:1
Settings @ script.js?857bfbda46b61d04e47d:1
window.onload @ script.js?857bfbda46b61d04e47d:1
load (async)
(anonymous) @ script.js?857bfbda46b61d04e47d:1
(anonymous) @ script.js?857bfbda46b61d04e47d:1
script.js?857bfbda46b61d04e47d:1 WebSocket connection to 'ws://10.1.10.189:81/' failed: WebSocket is closed before the connection is established.
#include <esp_wifi.h>
#include <EEPROM.h>
#include <LittleFS.h>
#include <SettingsGyverWS.h>
#include <TableFileStatic.h>
const char* apSSID = "ESP"; const char* apPassword = ""; const int apChannel = 6; const int hidden = 0; // If hidden is 0 change show hidden to true in remote code.
String ssid,password;
int device, rssi, sensorValues[4], sensorTypes[4];
float voltage;
uint8_t mac[6],receivedCommand[6],showConfig[256];
SettingsGyverWS sett("Sensors Monitor/Control");
void build(sets::Builder& b) {
b.Plot(H(plot1), "/file_plot1.tbl"); // из бинарной таблицы
b.Plot(H(plot2), "/file_plot2.csv"); // из csv таблицы
}
void setup() {
Serial.begin(115200);
Serial.println();
EEPROM.begin(512);
EEPROM.readBytes(0, showConfig,256);for(int i=0;i<256;i++){Serial.printf("%d ", showConfig[i]);}Serial.println();
if (showConfig[0] == 0 || showConfig[0] == 255){
// Setup device numbers and wifi Channel for remote devices in EEPROM permanantly.
for (int i = 6; i < 256; i = i+10) {EEPROM.writeByte(i, i);EEPROM.writeByte(i+1, 107);EEPROM.writeByte(i+2, apChannel);}
EEPROM.writeByte(0, apChannel);EEPROM.commit();
}
WiFi.softAP(apSSID, apPassword, apChannel, hidden);
esp_wifi_set_event_mask(WIFI_EVENT_MASK_NONE); // This line is must to activate probe request received event handler.
Serial.print("AP started with SSID: ");Serial.println(apSSID);
int n = WiFi.scanNetworks();
int strongestRSSI = -80;
for (int i = 0; i < n; i++) {if (WiFi.RSSI(i) > strongestRSSI) {strongestRSSI = WiFi.RSSI(i); ssid = WiFi.SSID(i);}}
if (WiFi.SSID(0) == ssid && WiFi.encryptionType(0) == WIFI_AUTH_OPEN) {WiFi.begin(ssid.c_str(), password.c_str());}
LittleFS.begin(true);
sett.begin();
sett.onBuild(build);
WiFi.onEvent(probeRequest,WiFiEvent_t::ARDUINO_EVENT_WIFI_AP_PROBEREQRECVED);
Serial.print("Waiting for probe requests ... ");
}
void loop() {
sett.tick();
}
void probeRequest(WiFiEvent_t event, WiFiEventInfo_t info)
{
Serial.println();
Serial.print("Probe Received : ");for (int i = 0; i < 6; i++) {Serial.printf("%02X", info.wifi_ap_probereqrecved.mac[i]);if (i < 5)Serial.print(":");}Serial.println();
Serial.print("Connect at IP: ");Serial.print(WiFi.localIP()); Serial.println(" to monitor and control whole network");
// Allow data from device ID ending in number 6, voltage value between 2.4V and 3.6V. and signal is stonger than -70.
for (int i = 6; i < 256; i = i+10) if (info.wifi_ap_probereqrecved.mac[0] == i )
{
if (info.wifi_ap_probereqrecved.mac[1] > 120 && info.wifi_ap_probereqrecved.mac[1] < 180)
{
// This helps reduce interference from unknown devices from far away with weak signals.
if (info.wifi_ap_probereqrecved.rssi > -70)
{
device = info.wifi_ap_probereqrecved.mac[0];
for (int i = 0; i < 6; i++) mac[i] = showConfig[i+device]; // Prepare command to be sent to remote device.
for (int j = 0; j < 4; j++) sensorTypes[j] = showConfig[j+device+6]; // Assign sensor types to the particular device.
Serial.println("Contents of command data saved in EEPROM for this device: "); EEPROM.readBytes(0, showConfig,256);for(int i=0;i<10;i++){Serial.printf("%d ", showConfig[i+device]);} Serial.println();
esp_err_t err = esp_wifi_set_mac(WIFI_IF_AP, &mac[0]); //https://randomnerdtutorials.com/get-change-esp32-esp8266-mac-address-arduino/ https://github.com/justcallmekoko/ESP32Marauder/issues/418
Serial.print("Command sent to remote device : "); for (int i = 0; i < 6; i++) { Serial.print(mac[i]);} Serial.println();
rssi = info.wifi_ap_probereqrecved.rssi;
voltage = info.wifi_ap_probereqrecved.mac[1];
voltage = voltage * 2 / 100;
sensorValues[0] = info.wifi_ap_probereqrecved.mac[2];sensorValues[1] = info.wifi_ap_probereqrecved.mac[3];sensorValues[2] = info.wifi_ap_probereqrecved.mac[4];sensorValues[3] = info.wifi_ap_probereqrecved.mac[5];
// ===== бинарная таблица =====
TableFileStatic t(&LittleFS, "/file_plot1.tbl");
// инициализация, должна быть вызвана хотя бы один раз после непосредственного создания файла
t.init(13, cell_t::Uint32, cell_t::Int8, cell_t::Float, cell_t::Int8, cell_t::Int8, cell_t::Int8, cell_t::Int8, cell_t::Int8, cell_t::Int8, cell_t::Int8, cell_t::Int8, cell_t::Int8, cell_t::Int8);
// добавление в файл
t.append(sett.rtc.getUnix(), device, voltage, rssi*(-1), random(100), sensorTypes[0], sensorValues[0], sensorTypes[1], sensorValues[1], sensorTypes[2], sensorValues[2], sensorTypes[3], sensorValues[3]);
Serial.println(sett.rtc.getUnix());
if (voltage < 2.50) {
Serial.print("Low battery for device: "); Serial.println(String(device));
} // if voltage of battery gets to low, print the warning below.
}
}
}
// In some cases send command only once.
if (mac[1] == 105 || mac[1] == 106 || mac[1] == 108 || mac[1] == 110){for (int i = 6; i < 256; i = i+10) {EEPROM.writeByte(i+1, 107);EEPROM.writeByte(i+2, apChannel);EEPROM.commit();}}
}