WIFI_IF_AP, WIFI_PROTOCOL_LR / UDP not working in 2.0.14 but 2.0.3

[sartyx]

Board

ESP32-S2 / ESP32 DEV Module

Device Description

Lolin S2 Mini and Sunton ESP32-2432S024

Hardware Configuration

Nothing for the S2-Mini but the display got many embedded parts, not sure if this matters as the examples do work in 2.0.3.

Version

v2.0.14

IDE Name

Arduino IDE, Platformio, same results on both IDE

Operating System

Windows 10

Flash frequency

no idea

PSRAM enabled

yes

Upload speed

115200

Description

I tried this code to set up a communication between the two ESP32. It works quite well using ESP 2.0.3 but fails on 2.0.14. Both sides master/slave compile but the client fails to connect usind 2.0.14

Sketch

https://github.com/jnogues/ESP32-Long-Range-WiFi

/////////////////////////////////////////////////////////////////////////////////
// MASTER
// based on https://gist.github.com/yaqwsx/ac662c9b600ef39a802da0be1b25d32d
// 2018.07.14 jnogues@gmail.com, Jaume Nogués, rPrim Tech
// This sketch shows the use of 802.11 LR (Low Rate)
// master.ino

#include <Arduino.h>
#include <WiFi.h>
#include <WiFiUdp.h>
#include <esp_wifi.h>

const char* ssid = "kkkkk";//AP ssid
const char* password = "12345678";//AP password
const char* ssidRouter = "MySSID";//STA router ssid
const char* passwordRouter = "MyPASSWORD";//STA router password
WiFiUDP udp;

void setup() {
    pinMode(5, OUTPUT);//builtin Led, for debug
    digitalWrite(5, HIGH);
    Serial.begin( 115200 );
    Serial.println( "Master" );

    //first, we start STA mode and connect to router
    WiFi.mode( WIFI_AP_STA );
    WiFi.begin(ssidRouter,passwordRouter); 

    //Wifi connection
    while (WiFi.status() != WL_CONNECTED) 
    {
      delay(500);
      Serial.print(".");
    }

    Serial.println("Router WiFi connected");
    Serial.print("IP address: ");
    Serial.println(WiFi.localIP());

    //second, we start AP mode with LR protocol
    //This AP ssid is not visible whith our regular devices
    WiFi.mode( WIFI_AP );//for AP mode
    //here config LR mode
    int a= esp_wifi_set_protocol( WIFI_IF_AP, WIFI_PROTOCOL_LR );
    Serial.println(a);
    WiFi.softAP(ssid, password);
    Serial.println( WiFi.softAPIP() );
    Serial.println("#");//for debug
    delay( 1000 );
    digitalWrite(5, LOW); 
    udp.begin( 8888 );
}

void loop() 
{
    udp.beginPacket( { 192, 168, 4, 255 }, 8888 );//send a broadcast message
    udp.write( 'b' );//the payload
    digitalWrite(5, !digitalRead(5));

    if ( !udp.endPacket() ){
        Serial.println("NOT SEND!");
        delay(100);
        ESP.restart(); // When the connection is bad, the TCP stack refuses to work
    }
    else{
          Serial.println("SEND IT!!"); 
    }     

    delay( 1000 );//wait a second for the next message
}

///////////////////////////////////////////////////////////////////////////////
// SLAVE
// based on https://gist.github.com/yaqwsx/ac662c9b600ef39a802da0be1b25d32d
// 2018.07.14 jnogues@gmail.com, Jaume Nogués, rPrim Tech
// This sketch shows the use of 802.11 LR (Low Rate)
// slave.ino

#include <Arduino.h>
#include <WiFi.h>
#include <WiFiUdp.h>
#include <esp_wifi.h>

const char* ssid = "kkkkk";//AP ssid
const char* password = "12345678";//AP password

WiFiUDP udp;

const char *toStr( wl_status_t status ) {
    switch( status ) {
    case WL_NO_SHIELD: return "No shield";
    case WL_IDLE_STATUS: return "Idle status";
    case WL_NO_SSID_AVAIL: return "No SSID avail";
    case WL_SCAN_COMPLETED: return "Scan compleded";
    case WL_CONNECTED: return "Connected";
    case WL_CONNECT_FAILED: return "Failed";
    case WL_CONNECTION_LOST: return "Connection lost";
    case WL_DISCONNECTED: return "Disconnected";
    }
    return "Unknown";
}

void setup() {
    Serial.begin( 115200 );
    Serial.println( "Slave" );
    pinMode(5, OUTPUT);//bultin Led, for debug

    //We start STA mode with LR protocol
    //This ssid is not visible whith our regular devices
    WiFi.mode( WIFI_STA );//for STA mode
    //if mode LR config OK
    int a= esp_wifi_set_protocol( WIFI_IF_STA, WIFI_PROTOCOL_LR );
    if (a==0)
    {
      Serial.println(" ");
      Serial.print("Error = ");
      Serial.print(a);
      Serial.println(" , Mode LR OK!");
    }
    else//if some error in LR config
    {
      Serial.println(" ");
      Serial.print("Error = ");
      Serial.print(a);
      Serial.println(" , Error in Mode LR!");
    }

    WiFi.begin(ssid, password);//this ssid is not visible

    //Wifi connection, we connect to master
    while (WiFi.status() != WL_CONNECTED) 
    {
      delay(500);
      Serial.print(".");
    }

    Serial.println("WiFi connected");
    Serial.print("IP address: ");
    Serial.println(WiFi.localIP());

    udp.begin( 8888 );
}

void loop() {
     //problems whith connection
    if ( WiFi.status() != WL_CONNECTED ) 
    {
        Serial.println( "|" );
        int tries = 0;
        WiFi.begin( ssid, password );
        while( WiFi.status() != WL_CONNECTED ) {
            tries++;
            if ( tries == 5 )
                return;
            Serial.println( toStr( WiFi.status() ) );
            delay( 1000 );
        }
        Serial.print( "Connected " );
        Serial.println( WiFi.localIP() );
    }
    //if connection OK, execute command 'b' from master
    int size = udp.parsePacket();
    if ( size == 0 )
        return;
    char c = udp.read();
    if ( c == 'b' ){
        digitalWrite(5, !digitalRead(5));//toggle Led
        Serial.println("RECEIVED!");
        Serial.println(millis());
    }
    udp.flush();
}

Debug Message

no debug message, the client is just not connecting

Other Steps to Reproduce

No response

I have checked existing issues, online documentation and the Troubleshooting Guide

• [X] I confirm I have checked existing issues, online documentation and Troubleshooting guide.

[P-R-O-C-H-Y]

Hi @sartyx, can you please set Debug level to Verbose on both boards and post the Debug message? Thanks

[sartyx]

esp32log.txt

sure, it is huge though... the dev board was flashed at 80MHz as I just noticed