ESP32 Development Board not connecting

Development Boards ESP32
1

I just received the SparkFun IoT RedBoard - ESP32 Development Board and set it up using this guide. https://learn.sparkfun.com/tutorials/io … okup-guide

I added the board using the Additional Boards Mangier . https://raw.githubusercontent.com/espre … index.json

I’ve Installed the CH340 Drivers. In the Arduino IDE I’ve selected Board “ESP32 Dev Module” and Port “COM1”

When I first plugged it in to the USB port the “CHG”,”POW” came on and LED on pin 18 was flashing on and off at 1 second interval as if the “blink” sketch was running. I thought that was unusual for a new board. When I try to upload a blank sketch or any sketch I get the error:

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

Sketch uses 211093 bytes (16%) of program storage space. Maximum is 1310720 bytes.

Global variables use 16048 bytes (4%) of dynamic memory, leaving 311632 bytes for local variables. Maximum is 327680 bytes.

esptool.py v4.2.1

Serial port COM1

Connecting…

A fatal error occurred: Failed to connect to ESP32: No serial data received.

For troubleshooting steps visit: https://docs.espressif.com/projects/esp … oting.html

the selected serial port For troubleshooting steps visit: https://docs.espressif.com/projects/esp … oting.html

does not exist or your board is not connected

This report would have more information with

“Show verbose output during compilation”

option enabled in File → Preferences.

I’ve tried the on two different computers with the same results.

Could it be the board is not new and is defective? Any help would be appreciated.

Thanks, Tony

2

The board is not recognized in the Device Manager either. I’m not sure how to post images.

[[[/img]

[[/img]](Screen Hunter 20 Nov 20 08 33 — Postimages)

3

One more try.

[](Screen Hunter 20 Nov 19 14 56 — Postimages)

4

I am using a Sparkfun Reversible USB A to C Cable - 2m, part number CAB-15424, sold on Order #5663242. The SparkFun IoT RedBoard - ESP32 Development Board WRL-19177 will not connect with this cable. I replaced the cable with a 1 meter USB A to C Cable from another device and the board connected as soon as I plugged it into the computer. The board is working as expected with this cable. I assume the WRL-19177 is defective. Any other suggestions?

Thanks,

Tony

5

We don’t have more stock for me to check, but I believe the reversible cable only has data lines in one orientation; flip the cable over and see if it works?

If it doesn’t, I got your email and we’ll refund the cable $ (the board works with the other cable, so it’s not the issue)

6

I have almost similar problem:

PC tries to connect by com6 with the board. Correct Driver for Com is installed.

After compiling PC tries to upload but fatal error occurs and it tells Board is not in download mode.

I tried to press and hold „boot“ and press „reset“ and release boot. Then try to compile and upload again.

Does not work.

Is the board defective?

Did send a report with screen shots to support??