ESP32 Connection problem with Blynk

Need Help With My Project
1

Hello I’m working in IOT project using ESP32 board , I got a problem connection with Blynk ! Please I need help!
Here my code and Serial monitor :

#define BLYNK_DEVICE_NAME "DHT11"  
#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#include "DHT.h"

char auth[] = "FhQRnzPRJD80cAxBosOB6Uy34c_R_TV2";

// Your WiFi credentials.
// Set password to "" for open networks.
char ssid[] = "Removed";
char pass[] = "Removed";

#define DHTPIN 15       

#define DHTTYPE DHT11    

DHT dht(DHTPIN, DHTTYPE);
BlynkTimer timer;

/
void sendSensor()
{
  float h = dht.readHumidity();
  float t = dht.readTemperature(); 

  if (isnan(h) || isnan(t)) {
    Serial.println("Failed to read from DHT sensor!");
    return;
  }
  // You can send any value at any time.
  // Please don't send more that 10 values per second.
  Blynk.virtualWrite(V0, t); 
  Blynk.virtualWrite(V1, h); 
}

void setup()
{
  Serial.begin(115200);
delay(1000);
  
  Blynk.begin(auth, ssid, pass, IPAddress(139,59,206,133), 8080);

  dht.begin();

  timer.setInterval(1000L, sendSensor);
}

void loop()
{
  Blynk.run();
  timer.run();
}

ets Jun  8 2016 00:22:57

rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
flash read err, 1000
ets_main.c 371 
ets Jun  8 2016 00:22:57

rst:0x10 (RTCWDT_RTC_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0018,len:4
load:0x3fff001c,len:1216
ho 0 tail 12 room 4
load:0x40078000,len:10944
load:0x40080400,len:6388
entry 0x400806b4
E (31) psram: PSRAM ID read error: 0xffffffff
[1027] Connecting to ...


'''
2

This error can be cause by pulling GPIO12 LOW at start-up. Do you have anything connected to GPIO12?

This error usually occurs when you’ve selected a board type in the Arduino IDE that expects an ESP32 WROVER chip type, but your physical board uses an ESP32 WROOM chip instead.

The WROOM chip does not have onboard PSRAM memory, hence the error message.

The solution is to use a board type such as the “ESP32 Dev Module” rather than the “ESP32 Wrover Module”.

Also, once you get past these error messages and your sketch starts being run, your sketch is using Blynk Legacy. Are you using the Legacy app and version 0.6.1 of the Blynk library on your PC?
Are you aware that Blynk L:egacy as been replaced with Blynk IoT and that the Legacy version will be retired at some point?

This line of code:

forces the use of the Blynk Legacy server in Frankfurt, but this auth token:

is not a valid auth token on any of the Legacy servers.

Pete.

3

Hello.
thank you for the post.
I have a similar problem using an ESP32 WROOM 32 and getting the "E (117) psram: PSRAM ID read error: 0xffffffff"error message. I switched from from board type “ESP32 Wrover Module” to “ESP32 Dev Module”. The device did not connect but the error went away.
Unfortunately, the error has returned yet i’ve still chosen the board type as “ESP32 Dev Module”.
Any suggestions?

4

I’d suggest you start a new “need help with my project” topic and explain exactly which hardware you’re using (including the ESP32 chip type), which version of the ESP32 core you have installed, what board type you’re choosing in the IDE, along with your code and serial monitor output.
When you post your code and serial monitor output text ensure that you use triple backticks at the beginning and end.

Pete.

5

will do. Thanks