ESP-WROOM-32 error

Projects Programming
1

Hi all.

An Arduino newbie here.

I have a ESP32S ESP32 ESP-WROOM-32 Development Board 2.4GHz Dual-Core WiFi +Bluetooth 2 Function Microcontroller for Arduino

Arduino: 1.8.19 (Windows 7), Board: "ESP32-WROOM-DA Module, Default 4MB with spiffs (1.2MB APP/1.5MB SPIFFS), 240MHz (WiFi/BT), QIO, 80MHz, 4MB (32Mb), 921600, Core 1, Core 1, None, Disabled"

I bought it here: https://www.amazon.com/gp/product/B09J95SMG7/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1

My sketch is not compiling and giving me an error.
I got my sketch from: ESP NOW - Peer to Peer ESP32 Communications
( I ran this same sketch on a different windows computer a few weeks ago, with the same hardware and sketch. It work perfectly then).

My sketch is below and the error file was so long I am attaching it as a text file.
ugyui.txt (141.1 KB)

I would like input on how to fix this issue.

Ty

/*
  ESP32 MAC Address printout
  esp32-mac-address.ino
  Prints MAC Address to Serial Monitor

  DroneBot Workshop 2022
  https://dronebotworkshop.com
*/

// Include WiFi Library
#include "WiFi.h"

void setup() {

  // Setup Serial Monitor
  Serial.begin(115200);

  // Put ESP32 into Station mode
  WiFi.mode(WIFI_MODE_STA);

  // Print MAC Address to Serial monitor
  Serial.print("MAC Address: ");
  Serial.println(WiFi.macAddress());
}

void loop() {

}
3

This is the OP. I solved the problem by changing the upload speed to 115200. In all my life I never had to mess around with the upload speed. I just hit upload, and all went smooth.

4

This is the OP again. The sketch compiles but when I tried to upload it, it threw me a new error!!!

Global variables use 42256 bytes (12%) of dynamic memory, leaving 285424 bytes for local variables. Maximum is 327680 bytes.
esptool.py v4.5.1
Serial port COM21
Connecting......................................

A fatal error occurred: Failed to connect to ESP32: Wrong boot mode detected (0x13)! The chip needs to be in download mode.
For troubleshooting steps visit: https://docs.espressif.com/projects/esptool/en/latest/troubleshooting.html
the selected serial port For troubleshooting steps visit: https://docs.espressif.com/projects/esptool/en/latest/troubleshooting.html
 does not exist or your board is not connected

This is how I solved this issue:

I continuously pushed down the right button on the board and then clicked on Upload. I let go the button only after it said Hard resetting pins or something like that. It uploaded properly.

5

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