My 3.3v And 5v Keeps Making My Serial Monitor Give A Message About Flash Board

Other Hardware 3rd Party Boards
1

I am making an automatic watering plant system with this tutorial.
"https://www.youtube.com/watch?v=IvzBPXqyUm4&t=418s&ab_channel=CarolineDunn" (Copy URL)
This is a video of a 4 series playlist.
I am on the very first one.

This is my code:

int sensor_pin = 0; 
int output_value ;

void setup() {
  Serial.begin(115200);
  Serial.println("Reading From the Sensor ...");
  delay(2000);
}

void loop() {

  output_value= analogRead(sensor_pin);
  output_value = map(output_value,550,0,0,100);
  Serial.print("Moisture : ");
  Serial.print(output_value);
  Serial.println("%");
  delay(1000);
}

I have tested in a way to check that the problem is my 3.3v or 5v.
My test was that I had unwired everything, then I wired my signal pin (A0). Nothing happened. Then I wired my GND pin. Nothing happened. After that, I wired my 5v. Now I got a message saying about the Flash Board on the serial monitor. Finally, I tested my 3.3v and the same message popped up.

Do I need to Boot my flash board? If so, how?

3

Hi @gunduzthepro.

Please provide the full and exact text from Serial Monitor in a reply here on this forum thread.

Please also tell us which development tool you are using (e.g., "Arduino IDE 2.3.2", "Arduino IDE 1.8.5", "Arduino Cloud Editor").

4

It is important that you never change your wiring when the code is running, that can damage things.

Do you actually have a Nano ESP32 or is it an other sort of ESP chip.

5

Sorry, I was in a tight situation.
Now I will provide you with the exact information:
I use an ESP32 (not Nano). My Arduino IDE is version 1.8.19 (note that I have tested the latest).
This is a picture directly from my serial monitor

image
image959×736 20 KB
.
If you need any more info...

6

This section is for Nano ESP32 though.

7

That was the only option sadly.

8

If it's not about Nano ESP32 then it belongs in the following section --

9

I moved your topic to a more appropriate forum category @gunduzthepro.

The Nano ESP32 category you chose is only used for discussions directly related to the Arduino Nano ESP32 board.

In the future, please take the time to pick the forum category that best suits the subject of your question. There is an "About the _____ category" topic at the top of each category that explains its purpose.

Thanks in advance for your cooperation.

10

I think this is the important part:

This indicates there is some problem with the data in the flash memory on the ESP32 board.

Does the problem still occur if you disconnect all external circuitry from the ESP32 board (including the sensor) and use the board with only the USB connection to your computer?

Of course the sensor readings reported by the sketch will be nonsensical without the sensor connected, but the goal of the experiment is to check whether the reset loop is being caused by some interference from the external circuitry.

11

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