There’s an add-on for the Arduino IDE that allows you to program the ESP32 using the Arduino IDE and its programming language. In this tutorial we’ll show you how to install the ESP32 board in Arduino IDE whether you’re using Windows, Mac OS X or Linux.
Watch the Video Tutorial
This tutorial is available in video format (watch below) and in written format (continue reading this page).
If you have any problems during the installation procedure, take a look at the ESP32 Troubleshooting Guide.
If you like the ESP32, enroll in our course: Learn ESP32 with Arduino IDE.
Prerequisites: Arduino IDE Installed
Before starting this installation procedure, make sure you have the latest version of the Arduino IDE installed in your computer. If you don’t, uninstall it and install it again. Otherwise, it may not work.
Having the latest Arduino IDE software installed from arduino.cc/en/Main/Software, continue with this tutorial.
Do you need an ESP32 board? You can buy it here.
Installing ESP32 Add-on in Arduino IDE
To install the ESP32 board in your Arduino IDE, follow these next instructions:
In your Arduino IDE, go to File> Preferences
Enter the following into the “Additional Board Manager URLs” field:
https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json
Then, click the “OK” button:
Note: if you already have the ESP8266 boards URL, you can separate the URLs with a comma as follows:
https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json, http://arduino.esp8266.com/stable/package_esp8266com_index.json
Open the Boards Manager. Go to Tools > Board > Boards Manager…
Search for ESP32 and press install button for the “ESP32 by Espressif Systems“:
That’s it. It should be installed after a few seconds.
Testing the Installation
Plug the ESP32 board to your computer. With your Arduino IDE open, follow these steps:
1. Select your Board in Tools > Board menu (in my case it’s the DOIT ESP32 DEVKIT V1)
2. Select the Port (if you don’t see the COM Port in your Arduino IDE, you need to install the CP210x USB to UART Bridge VCP Drivers):
3. Open the following example under File > Examples > WiFi (ESP32) > WiFiScan
4. A new sketch opens in your Arduino IDE:
5. Press the Upload button in the Arduino IDE. Wait a few seconds while the code compiles and uploads to your board.
6. If everything went as expected, you should see a “Done uploading.” message.
7. Open the Arduino IDE Serial Monitor at a baud rate of 115200:
8. Press the ESP32 on-board Enable button and you should see the networks available near your ESP32:
Troubleshooting
If you try to upload a new sketch to your ESP32 and you get this error message “A fatal error occurred: Failed to connect to ESP32: Timed out… Connecting…“. It means that your ESP32 is not in flashing/uploading mode.
Having the right board name and COM por selected, follow these steps:
- Hold-down the “BOOT” button in your ESP32 board
- Press the “Upload” button in the Arduino IDE to upload your sketch:
- After you see the “Connecting….” message in your Arduino IDE, release the finger from the “BOOT” button:
- After that, you should see the “Done uploading” message
That’s it. Your ESP32 should have the new sketch running. Press the “ENABLE” button to restart the ESP32 and run the new uploaded sketch.
You’ll also have to repeat that button sequence every time you want to upload a new sketch. But if you want to solve this issue once for all without the need to press the BOOT button, follow the suggestions in the next guide:
If you experience any problems or issues with your ESP32, take a look at our in-depth ESP32 Troubleshooting Guide.
Wrapping Up
This is a quick guide that illustrates how to prepare your Arduino IDE for the ESP32 on a Windows PC, Mac OS X, or Linux computer. If you encounter any issues during the installation procedure, take a look at the ESP32 troubleshooting guide.
Now, you can start building your own IoT projects with the ESP32!
- Learn ESP32 with Arduino IDE [eBook + Video Course]
- ESP32 vs ESP8266 – Pros and Cons
- Free ESP32 Projects and Tutorials
- Build an ESP32 Web Server with Arduino IDE
- ESP32 DHT11/DHT22 Web Server with Arduino IDE
Thanks for reading.
Can you explain why Python and a whole load of command line stuff is required?
It wasn’t necessary for the ESP8266, installing that into the Arduino IDE was just a case of entering an address into the additional boards manager URLs box under the preferences tab and it all happened.
I thought ESP 32 was the same…
Hi Duncan,
At the moment the Arduino IDE requires Python to communicate with the ESP32.
It’s not currently able to do upload scripts exclusively from the Arduino IDE, but it should work like it did for the ESP8266 in a near future.
Thanks for asking,
Rui
Thank you very much. I learn something from you.
Mendis.
You’re welcome,
Rui
I keep getting the compile error below
File “C:\Users\Engineering\Documents\Arduino-1.6.13\hardware\espressif\esp32/tools/esptool.py”, line 183
print ‘%s’ % inst.CHIP_NAME
^
SyntaxError: Missing parentheses in call to ‘print’
Multiple libraries were found for “WiFi.h”
Used: C:\Users\Engineering\Documents\Arduino-1.6.13\hardware\espressif\esp32\libraries\WiFi
Not used: C:\Users\Engineering\Documents\Arduino-1.6.13\libraries\WiFi
Using library WiFi at version 1.0 in folder: C:\Users\Engineering\Documents\Arduino-1.6.13\hardware\espressif\esp32\libraries\WiFi
exit status 1
Error compiling for board ESP32 Dev Module.
That’s because it’s executing python3 which requires parenthesis for “print”, to solve this:
– install python 2.7 (in c:\python27 for example)
– add the it’s directory (c:\python27) to PATH environment variable
– rename the python.exe located in the python 3 directory (c:\python36) to python3.exe
Your problem is not with the ‘print’ command, the compiler requires there be only one #include file in all libraries with the same name; #inclide file with the same name in multiple Libraries cause the compiler to ERROR and not go any farther. Move one or the other file to a temporary folder, preferably move the file not in the ARDUINO Library folder to the temp location and use it, not the file in the Application Library folder.
Found my error, I had both 2.7 and 3.6 Python versions. I unloaded 3.6 and made sure 2.7 and in path. Thanks
I’m glad you found the solution, thanks for sharing it with us!
Rui
Thanks for this interesting item, i made it working in the IDE.
Now i have to wait for an ESP 32.
Happy New Year and Merry Chrismas.
You’re welcome,
More tutorials with this board very soon.
Rui
Hi Rui,
I’m not very familiar with Arduino IDE so far. But I have installed the ESP8266-board-definitions.
I don’t remember the exact process. Your tutorial misses how to add the ESP32-board definitions. I’m using Arduino IDE V1.6.12 which does not include ESP32. As a newbee I would have to re-install the newest Arduino-IDE. This would require a lot of additional adjustments.
please add to this tutorial how the board -definition of the ESP32 can be added.
best regards
Stefan
Hi Stefan,
This post describes the exact process adding the ESP32 board to your Arduino IDE installation.
Same thing with your link
“The ESP32 is currently being integrated with the Arduino IDE just like it was done for the ESP8266, but not everything is working at the moment (see here).”
linking right in the middle of github does newbees like me not help at all.
I’m also a newbee to github.
maybe you wait with your tutorial until the standard integration is done. Or at least add a first block of info telling what knowledge somebody should have to use your tutorial.
I mean something like that:
If you are familiar with Github and git and are not afraid of installing python you could already play with the ESP32
best regards
Stefan
I agree with you Stefan, the ESP32 is not as easy as the ESP8266 to integrate with the Arduino IDE, but if you follow this exact tutorial you should be able to prepare your Arduino IDE with the ESP32 boards.
When new instructions are available, I’ll update this tutorial.
Thanks,
Rui
hello, im just a college student. I have some problems about esp32 cannot find in board manager Actually i followed the steps on installing the arduino ide 2.0 beta and i went on file-preference and paste the url in additional board manager. Is it due to weak internet?Im just hoping that you can response on my message. its very hard to me on how to identify whats the problem. i was tried to search on youtube and google but i cant find the solution on this problem. It is a huge thanks when you response on it.
Hi.
What is exactly the problem that you’re facing?
Can you provide more details?
Otherwise, it is very difficult to find out what might be wrong.
Regards,
Sara
We were almost done by the steps as per the tutorial but there is an error “does not exist or your board is not connected”
Everything up to last get.py was smooth.
On windows machine it seems to be missing a file named ‘requests’
[email protected] MINGW64 /c/Program Files (x86)/Arduino/hardware/espressif/esp32/tools (master)
$ python get.py
Traceback (most recent call last):
File “get.py”, line 25, in
import requests
ModuleNotFoundError: No module named ‘requests’
pip install requests
Hi Rui,
what are the steps that the arduino-IDE-developers have to take until the ESP32-support reaches the stage as described in the following:
I’m not very familiar with the Arduino-IDE and specific terms and words. I hope it is still understandable what I want to ask
1.) Download the ESP32-“plugin” (or is it called “board-manager-entry”?)
2.) start arduino-IDE new
3.) write code for the ESP32-based board
4.) upload code to the board – code is running.
I would like to use the Arduino-IDE like it is meant to be:
choose your arduino-board from a list write and upload code.
Maybe I sound like I want to make everybody to hurry up. I don’t mean so. I’m very thankful for all the coders that took great effort to make coding a µC-board through the Arduino-IDE so easy. It is just that I would like to have some information about this: What is your ESTIMATION
will it take 6 weeks or maybe 3 months or will it take 24 months until ESP32-boards are fully supported by the Arduino-IDE?
best regards
Stefan
Fails with error:
“C:\\Program Files (x86)\\Arduino\\hardware\\espressif\\esp32/tools/xtensa-esp32-elf/bin/xtensa-esp32-elf-g++”: file does not exist
Follow the steps as Rui says , just run GET as admin in Windows , it worked for me.
thanks ru very interested at the this time I’m using my phone?, a android s6 Samsung witch I use to switch my lid lighting on & off so very interested in this technology and as you know I like making projects like guitar pedals + I’m a radio am thanks again pete
Thanks for reading. You could apply to that project, but I don’t have any information on that specific requirement.
Regards,
Rui
Hi Thanks for the information. i am having problems cloning Git Gui. Something to do with permissions. Any suggestions how I fix this or cam I copy the relevant files?
After a bit of fairly random key presses I got everything (well the program you demonstrate) to work. thank you. The pleasure on success far out-ways the frustration when everything fails
I got the espressif library put in the hardware directory for the Arduino, but the BLE directory is empty. Is it the same for the 8266, and/or where can I find it?
Thanks
The ESP8266 doesn’t have BLE (or Classic Bluetooth).
I followed the instructions for Installing the ESP32 Board in Arduino IDE, but it doesn’t communicate with the board. The port option is grayed out and I can’t select the port to use. I have this dev board: ezsbc.com/index.php/featured-products-list-home-page/wifi01-32.html#.WqL5pnXwblM
When I try to upload, I get:
“Failed to execute script esptool the selected serial port Failed to execute script esptool
does not exist or your board is not connected”
Hi Joel,
As we’ve discusses in the Facebook group, if your board doesn’t appear in your Arduino IDE it’s a problem with your drivers.
I would uninstall the drivers for your ESP32 built-in serial converter chip and try to install them again…
OK Found a solution that is currently working, although I’m not sure yet if anything else broke implementing it. I found when running the GET.EXE it added another sub-directory /arduino-esp32 under the espressif/esp32 directory path, and moved all the files into this subdirectory. Moving all the files back up to the esp32 directory has got it working, and I can load and run the suggested example. Not sure why the sub-directory is added, but it did it again after un-installing everything and starting again too.
You d’man, unless of course you are a girl, then you d’girl! I have had two of these in my parts box now since they came out, and never could get them running. I have been to dozens of sites with step-by-step instructions and although I can build a computer from scratch, and have done so, on a dare, and I have beat lawayers in court when acting as a paralegal, I could not get the blasted things to work. This one has guided me, and works great. The first unit I tried, both brand new, failed to work at all, and I thought, well just like the rest of the instructions, but just for shits and giggles, I grabbed my second unit, and IT WORKS!!!! Thanks a billion now I can have fun with my ESP32 as well as my ESP8266’s (I have about a dozen doing chores around my house and reporting back) and my Arduinos that are serving several devices I made for our RV to use when on the road, such as my home built GPS, my leveling device since the built in one only works once in awhile, and other little toys that make my wife of 48 years giggle when I press the buttons on my remotes.
Me (Rui Santos) I’m a guy. But, if Sara Santos answers a question (she’s a girl).
I’m glad this tutorial worked out for you! Thanks for letting me know!
Regards,
Rui
Somewhere back in a post (ESP32-S CAM MB web sever) you did an example of Face Detection, Showed you as Target O ? and a girl undefined as a Target. If that’s Sara…ya, uhhm, just let her answer the questions.
Took me about a week to get the dang cams working. Of all the web pages I’ve scanned/read (has to be hundreds) trying to see a live cam stream, yours is the one that pulled the rabbit out of the hat. It doesn’t seem to me that it should be such a challenge to get some sketch’s and load them into a device and have it work. I think the Arduino IDE (or maybe its in the code) should be able to not only detect the camera (it dos) but if the wrong drivers are loaded, Install the drivers that WILL work. I mean, It detects the camera… I read a lot of posts that huddle around … where to get information. For example, where do I find a list or source for –> index.json files for additional board support to add to the board manager? Thanks for helping folks out.
Hi.
I’m not sure I understood your question.
This is the tutorial you’re talking about: https://randomnerdtutorials.com/esp32-cam-video-streaming-face-recognition-arduino-ide/
As for your question, I think the following answers that:
– https://arduino.github.io/arduino-cli/0.19/package_index_json-specification/
– https://github.com/arduino/Arduino/issues/3232
Regards,
Sara
When I open the get.exe it opens a commandscreen and then it doesn’t do anything anymore. Do I just have to wait a very long time or did I do something wrong?
After that, can you see the ESP32 boards available in the Arduino IDE after closing the get.exe file?
I followed this excellent how-to to the end and everything appeared to be ok. Went into IDE and selected COM6 (the ESP chose that), I’m using the ESP module you used above.
But when I try to download a sketch I get
onnecting…….._____….._____….._____….._____…..__….._____….._____….._____
A fatal error occurred: Failed to connect to ESP32: Timed out waiting for packet header
Any suggestions
Hi George.
When that happens, you need to hold-down the “BOOT” button in your ESP32 board while the code is uploading.
After you see the “Connecting….” message in your Arduino IDE, release the finger from the “BOOT” button.
This should solve your problem.
You may also want to take a look at the ESP32 troubleshooting guide: https://randomnerdtutorials.com/esp32-troubleshooting-guide/
I hope this helps.
Regards,
Sara 🙂
Edit the “Sketchbook location” with forward slashes, so it looks as follows:
C:/Users/ruisantos/Documents/Arduino
how do i do that? sorry if it is a dumb question
Simply replace it manually, if it looks like this:
C:\Users\ruisantos\Documents\Arduino
Remove those \ and replace with /
C:/Users/ruisantos/Documents/Arduino
I hope that helps.
Regards,
Rui
Thanks to your tutorial I finally got it working again – my Arduino IDE and the ESP32. Before I was really lost even I followed some other instructions in the Web. Your tutorials are so clearly clear and you never forget any step. And your layout earns an award!
Thanks. We’re glad it works.
Many users struggle to get the Arduino IDE working with the ESP32.
We try to make the instructions as clear as possible, so that anyone can get it working.
Regards,
Sara 🙂
Hi Rui,
I have a problem
A fatal error occurred: Failed to connect to ESP32: Timed out waiting for packet header
From doing that to you. What is it? Installed the library? Or the board.
Make sure you hold down the BOOT button to force your ESP32 into flashing mode
Hi,
I’v got this board:
banggood.com/Goouuu-ESP-32F-Development-Board-ESP32-Kit-Bluetooth-WiFi-IoT-Control-Module-For-Arduino-p-1357920.html?rmmds=search&ID=557197&cur_warehouse=CN
I don’t have any specification for the TFT, Speaker output and the RGB Led.
I was able to use the RGB led with trial and error, using the “ESP32 Wrover module” 😉
I didn’t find a ESP-32F manager, just using the ESP-32 manager.
Any idea for the rest?
Thank you.
Hi Dzandaa.
I’ve never used that board. So, I don’t have any information about that.
Maybe the best thing to do is trying to get some documentation or information from the vendor.
I’m sorry that I can’t help.
Regards,
Sara 🙂
Rui,
You also have to PUSH THE BOOT BUTTON while UPLOADING (at least on the DEVKIT V1) else you get an error:
.
“Failed to connect to ESP32: Timed out waiting for packet header”
.
Thanks!
Bonjour. j’ai utiliser votre sketch WiFi Scan avec l’Esp32.la compilation dure 5 Minutes et le CPU de W7 tourne à 100%.pourquoi? à vous lire.salutations. vos cours m’interesse,existet-ils en verion livres? car étant souvent en déplacement il m’est difficille de regarder les videos
Hi Robert.
I don’t understand french. I used the translator but didn’t understand your first question.
Our ESP32 course is available both in video and eBook. When you buy the course, you get both versions.
Regards,
Sara 🙂
..if anybody still have trouble uploading sketches to their WEMOS D1R1 or similar after CH341SER driver install & even with latest arduino
ide with the ESP8266 PLATFORM downloaded connected to proper port in device manager Windows Xp or higher, with error message cxxabi_tweaks.h
not present do this….copy cxxabi_tweaks.h from{ your drive]C:\Documents and Settings\{your pc name}\Local Settings\Application Data\Arduino15
\packages\esp8266\tools\xtensa-lx106-elf-gcc\1.20.0-26-gb404fb9-2\xtensa-lx106-elf\include\c++\4.8.2\xtensa-lx106-elf\bits to C:\Documents and Settings
\{your pc name}\Local Settings\Application Data\Arduino15\packages\esp8266\tools\xtensa-lx106-elf-gcc\1.20.0-26-gb404fb9-2\xtensa-lx106-elf
\include\c++\4.8.2\bits ….it took me a week to figure it out…finally the blink sketches worked…so i have a renewed my spirit for a wifi radio
Thank you this is an excellent guide and help. I only want to inform about a key item from my point of view:
CP210x Driver Issue v10.1.4 on Windows 10 1809 : currently I did not found any solution for installing this driver working correctly with Arduino IDE; you do not will find the port ! Any solution ?
Hi Michael.
I’ve never faced that error and I haven’t find much information about that. Only the following link:
https://www.silabs.com/community/interface/forum.topic.html/cp210x_driver_issue-DhIE
If anyone knows a solution for this, please share with us.
Regards,
Sara 🙂
Hi Rui,
Thanks for the instructions. I was having difficulties installing but when I wrote exactly what I had done I realised my mistake. Wow Do I feel stupid. I suggest to all those having difficulties that they write down exactly what they are doing and perhaps the problem will solve itself.
For those getting the error: “A fatal error occurred: Failed to connect to ESP32: Timed out waiting for packet header”
I ran into the same issue and couldn’t resolve for the life of me. Turns out I have been shipped (twice, now) an ESP8266 in an ESP32 packaging. Configuring for the ESP8266 solved my issue, naturally. Throwing this out there in case this same thing happened to others.
Hi Peter.
I’m sorry for that issue. Where did you order your “ESP32” boards?
Just observing….. Sara asks a good question. As I gain experience with this board I am finding that not all boards are built and configured in the same way, even though they are labeled the same. One of the boards I purchased has never worked correctly but it uses COM6, not COM4. There is no communication with the Serial Monitor. The antenna attaches on a different side of the board. But, the provider of that board is highly suspect. Trying to track things down, I find that their website link is dead and they are located in China.
Lessons learned. Have ordered a new board from a different vendor. Establishing a reliable vendor is essential.
You can solve that issue by following this tutorial: https://randomnerdtutorials.com/solved-failed-to-connect-to-esp32-timed-out-waiting-for-packet-header/
Regards,
Sara
I finally got an ESP32. (Better late than never). I tried using this instructional to get it up and running. The board is a Node32s. I can see the port in the IDE; but when I try it upload the example sketch, I get an error that says it failed to connect to ESP32: Timed out waiting for packet header. Any thoughts?
Hi John.
Please describe the instructions in this tutorial to be able to upload code:
https://randomnerdtutorials.com/solved-failed-to-connect-to-esp32-timed-out-waiting-for-packet-header/
Regards,
Sara
My Boards Manager says that I have the “ESP32 by Expressif Systems” version 1.0.2 installed.
But I don’t see the ESP32 *anything in the boards manager.
Any tips? Do I need to go back to version 1.0.1 in my Boards Manager?
Cumprimentos Sara e/ou Rui. Primeiramente, obrigado pelo tutorial; no entanto, tenho uma questão um tanto diferente:
Qualquer sketch feito para a plataforma Arduino, é possível usá-lo com o esp32 ou esp8266? Se não, o que deve ser mudado e/ou acrescentado no código para tal? Muito obrigado
And for those of us (I suspect, the majority) who don’t read Portuguese???
Hi Daniel.
Next time, try to post your questions in English so that all our readers can understand.
An Arduino sketch can be used for the ESP32 with some changes. There are a few things that you need to be aware of:
– if you’re using libraries, they should be compatible with the ESP32
– the pins used in Arduino are different in the ESP32
– there are some functions in the Arduino that are different on the ESP32. For example, analogWrite() doesn’t work with the ESP32
– the input range of analogRead() of Arduino UNO is 0 to 1023, while on the ESP32 is 0 to 4095
There are also other small details you need to take into account when adapting an Arduino code to work with the ESP32.
I hope I’ve answered your question.
Thank you for following our work.
Regards,
Sara
Hi I just read this excellent tutorial but I have a problem where in the board manager it says “error: can’t download https://dl.espressif.com/dl/package_esp32_index.json” and can’t search for the esp32 in the search bar there… Please help
Hi.
That happened to me a few days ago.
The solution was to unnistall Arduino IDE and install again.
Then, install the ESP32 add-on.
Regards,
Sara
Installing 1.8.9 resolved the problem. Make sure you put the new library source under your preferences, Additional Boards Manager box (shown above in blue, if you have a 8266 one already there separate by commas). So it should read “https://dl.espressif.com/dl/package_esp32_index.json, http://arduino.esp8266.com/stable/package_esp8266com_index.json” – without the double quotes.
Hi Sara and Rui,
The sketch uploads but I keep getting this repeating message in the Serial Monitor:
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:0xffffffff,len:-1
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:0xffffffff,len:-1
ets Jun 8 2016 00:22:57
I am using the latest Arduino IDE version 1.8.9. and I am using a Node MCU ESP 32. I am using I2C the serial protocol and have wired correctly to the CLK and SDI pins. I am using a MacBook Pro.
When I loaded your code to my Arduino Uno, the code ran fine.
Hi Sara,
So I have the ESP32 DEVKIT V1 30 pin development board. I selected the ESP32 DEVKIT V1 board and when I plugged it into the PC COM28 popped up. So I selected it.
“esptool.py v2.6
Serial port COM28
Connecting…….._____….._____….._____….._____….._____….._____…..____An error occurred while uploading the sketch
_
A fatal error occurred: Failed to connect to ESP32: Timed out waiting for packet header”
This is the error message that I received. I then tried holding the BOOT button down until I saw the “Connecting…” message and released the BOOT button, but the same error then popped up.
Any further suggestions?
If that fix doesn’t work – I always hold the rst and boot button together, then release the rst, wait 1 second, and release the boot – all after the Connecting prompt and as the ….____ part comes up.
Nevermind. Hardware problem in my circuit. Thanks 🙂
Hi Rui,
Thanks for your great work and website, for me the best tutorials on Arduino, an ESP. Clear, and complete and working, you ebook too, the best I gave seen on the net and I’am in the electronic business about 50 years now.
Have some ESP32 devices since a log time, but had troubles on my mac when compiling, like many others. I’am now on 10.14.6 and tried once agin, it works 🙂 I followed your tutorial Above. But one thing, the DOITESP32 DEVKIT V1 ist not shown. I Installed the same board library as you and even newer ones. I than the ESP 32 Dev Module. The WiFi Scan sample works. Will I be able to get all out of my ESP32 even when there is an other board selected or how can I get the right board.
Rainer
Hi. i’ve followed all the steps and all went fine.
BUT my AI Tinker ESP32-Cam doesn’t hace a ENABLE button!!!
Only the RESET one!
Some clue?
Hi.
It’s the same. Some boards have a label as “RST” and others as “EN”. So, it’s the same thing.
Regards.
Sara
Hi Sara, ok but when i upload the sketch all goes fine ending with the text you can see bellow. The i push the reset button and the serial console shows:
rst:0x1 (POWERON_RESET),boot:0x3 (DOWNLOAD_BOOT(UART0/UART1/SDIO_REI_REO_V2))
waiting for download
and nothing more…
SKETCH LOAD:
Writing at 0x00008000… (100 %)
Wrote 3072 bytes (119 compressed) at 0x00008000 in 0.0 seconds (effective 1068.5 kbit/s)…
Hash of data verified.
Leaving…
Hard resetting via RTS pin…
Hi.
The “Leaving…
Hard resetting via RTS pin…” message indicates that the code was successfully uploaded to your board.
Just press the RST/EN button to restart the ESP32 and run the code.
Regards,
Sara
Thank you Sara!
Very useful website , very useful sharings
thank you very much
Ihave successfully installed the ESP32 to the arduino IDE. When uploading the test sketch, I get the following error:
Arduino: 1.8.12 (Windows 10), Board: “ESP32 Dev Module, Disabled, Default 4MB with spiffs (1.2MB APP/1.5MB SPIFFS), 240MHz (WiFi/BT), QIO, 80MHz, 4MB (32Mb), 921600, None”
Traceback (most recent call last):
File “esptool.py”, line 2959, in
File “esptool.py”, line 2952, in _main
File “esptool.py”, line 2725, in main
File “esptool.py”, line 2244, in elf2image
File “esptool.py”, line 1783, in __init__
IOError: [Errno 2] No such file or directory: ‘C:\\Users\\tdrummon\\AppData\\Local\\Temp\\arduino_build_568222/WiFiScan.ino.elf’
Failed to execute script esptool
Multiple libraries were found for “WiFi.h”
Used: C:\Users\tdrummon\AppData\Local\Arduino15\packages\esp32\hardware\esp32\1.0.4\libraries\WiFi
Not used: C:\Program Files (x86)\Arduino\libraries\WiFi
exit status -1
Error compiling for board ESP32 Dev Module.
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Also, must the COM port bve COM Port 4? All see available is COM Port 5.
Hi Terry.
The port can be different. It is the port that shows in your Arduino IDE.
Regards,
Sara
Try to change baud rate to 115200 from 921600.
Thank you so much, i was able to connect
Hi
I try to install esp32 and esp8266 in arduino ide, i follow your instuctions, my laptop is a lenovo g580 with ubuntu 18.04 but i have a problem with esp32 when i try to run the wifi scan sketch from the examples. The esp8266 is running whithout any problem.
This is the message from arduino ide
Arduino: 1.8.12 (Linux), Board: “ESP32 Dev Module, Disabled, Default 4MB with spiffs (1.2MB APP/1.5MB SPIFFS), 240MHz (WiFi/BT), QIO, 80MHz, 4MB (32Mb), 921600, None”
Multiple libraries were found for “WiFi.h”
Used: /home/leonidas/snap/arduino/5/.arduino15/packages/esp32/hardware/esp32/1.0.4/libraries/WiFi
Not used: /snap/arduino/5/libraries/WiFi
exec: “python”: executable file not found in $PATH
Error compiling for board ESP32 Dev Module.
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What can i do?
Hi.
Take a look at this discussion and see if any of the suggestions solve your issue: https://www.esp32.com/viewtopic.php?t=7616#p33322
Regards,
Sara
Thank you Sara for your kind and quick responce.
I was tried all these thinks but nothing was happen. The most odd fact is that before 3 months i set up two ESP8266 (WEMOS D1 & NODE MSU) and an ESP32 (i don’t know witch board) and all of them works until now with my wifi settings, but i cant change anything after the blocking of arduino IDE.
I am really tired with this situation and i think that i will quit of these boards.
Thanks again
Hi.
I’m sorry for that issue.
I usually don’t work with ubuntu, so I’m not familiar with the problems when using Arduino IDE.
Many times, new problems appear when one updates to a newest version of Arduino IDE that happens to have some bugs. The solution is to get back to the previous working version.
I’m not sure if that’s the case.
Everything always worked fine for me on a Windows computer.
Regards,
Sara
Two possibly related questions:
1 – I’m using a ESP32 WROOM and am unable to find it represented in Arduino IDE > Menu Bar > Tools > Board listing. There are plenty of ESP32 boards there represented (thanks to your installation instructions), just not the ESP32 WROOM.
2 – I’m wondering if that explains why I’m suddenly unable to run any sketches after flashing ESP32s using Arduino IDE. There’s no problem flashing, but on completion no sketches run. The Serial Monitor Output is pasted below. I’ve been testing a bunch of boards, but I’m always getting the same output:
rst:0x1 (POWERON_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:9720
ho 0 tail 12 room 4
load:0x40080400,len:6352
entry 0x400806b8
Answering my own question here: Solution was to change one line of my Arduino code:
I’d had all my sketches showing
Serial.begin(9600);
and wasn’t able to find the equivalent baud rate in the Serial Monitor (it was simply hidden by a the scroll of the pulldown — dumb oversight on my part)
Changing that to
Serial.begin(115200);
or even leaving at 9600 — just making sure to match the baud rate of the Serial Monitor solved the problem.
I’m not 100% sure of the following: I would expect a mismatch would only affect whether or not the Serial Monitor displays anything and not affect whether or not the sketch runs, but my impression is that sketches that previously weren’t working are now working just fine.
C Munque, if baud rated does not much, you will see strange characters on the Serial Monitor.
Today I received two ESP32 DEVKITV1 from Amazon and, like you , I tried all different boards. My problem was that the board would not be uploaded with sketch. Then, here, I read troubleshooting section and about BOOT P.B. (See my comment). Closes I could come in board selection, was DOIT ESP32 DEVKIT V1, and so magically it worked.
WHAT BOARD DID YOU END UP CHOOSING FOR THE WROOM?
Hi.
You can choose ESP32 Dev Module or ESP32 Wrover Module.
Regards,
Sara
Is there a good solution to the ESP32 board issue with MacOS Big Sur?
Hi.
Read this: https://rntlab.com/question/macintosh-big-sur-macos-11-0-1-breaks-esp32-programming-on-arduino-ide/
Regards,
Sara
Thank you very much for the tutorial. I had wrestled with upload error problem almost a day before I saw your troubleshooting section and pushing BOOT push button. It was a relief, an now I am ready to start.
Thanks again.
Great!
Hello, I have problems including
#include “soc / soc.h” // Disable brownour problems
#include “soc / rtc_cntl_reg.h” // Disable brownour problems
#include “driver / rtc_io.h”
Could you tell me what the libraries are called that I should download?
Hi.
You don’t need to install anything.
It comes by default when you install the ESP32 boards in your Arduino IDE.
Regards,
Sara
Sorry my question was for another of your posts, precisely for the ESP-CAM. I’ll do it in the right place.
Very useful website,
i made everything like you indicated.
until the final message shown:
The “Leaving…
Hard resetting via RTS pin…”
then when i looked the COM monitor should show me the neighbors wifi, but it is show me this:
⸮⸮-⸮⸮:⸮
⸮⸮⸮⸮⸮⸮6⸮8⸮ D⸮⸮⸮⸮⸮⸮⸮4⸮⸮⸮B⸮⸮⸮M⸮]⸮⸮2⸮⸮⸮⸮CĞ⸮⸮^⸮⸮⸮⸮⸮⸮⸮/⸮ ⸮⸮⸮ކ⸮-⸮⸮⸮ ⸮⸮⸮⸮4⸮
⸮⸮⸮⸮M⸮⸮>⸮⸮⸮⸮⸮⸮⸮⸮⸮⸮⸮⸮⸮ކ⸮6⸮⸮⸮⸮⸮⸮⸮Ά0⸮:⸮
⸮⸮⸮⸮⸮⸮⸮⸮R⸮⸮⸮eFخ⸮⸮⸮j⸮⸮⸮⸮⸮⸮t⸮⸮⸮⸮⸮Ά⸮⸮8⸮H⸮@⸮⸮⸮ކ⸮⸮⸮t⸮⸮⸮⸮⸮C-⸮:⸮2⸮⸮⸮⸮ծ⸮⸮⸮⸮⸮⸮⸮⸮⸮B⸮⸮⸮⸮⸮^⸮⸮⸮
⸮⸮⸮⸮⸮⸮⸮⸮
⸮⸮⸮ԝ⸮t⸮⸮⸮⸮⸮⸮⸮⸮⸮h⸮⸮⸮
What could it be?? please help me!!
Hi.
Make sure you have the right baud rate selected on the Serial Monitor.
On the bottom right corner, double-check that you have 115200 baud rate.
Regards,
Sara
Thank you so much, that’s was the issue. I love this site.
Very good, I purchased your ESP32 course and the only time I have had problems is due to me missing a vital point early on. All the information is there but you need to actually read and absorb every bit; rushing through it will leave you frustrated. If you have a problem then slow down and go through line by line. Keep up the good work, you are saving people lots of time by pointing them to resources that can take a long time find among all the information on the internet.
Hi.
Thank you for your feedback Jonathan.
If you need any help following the course, you can use the forum on the RNTLAB: https://rntlab.com/forum/ (exclusive for members)
Regards,
Sara
Hi,
Thank you very much. I learn alot of ESP8266 and ESP32 from you.
Great! 🙂
Hello,
I’m experiencing problems loading files to my sketch, but first I wanted to ensure my board is installed properly. The ESP32 Add-on in the Arduino IDE is installed correctly. When I go to the board manager, the ‘ESP32 by Espressif Systems’ is not available. Am I missing a step or something else that needs to be performed to get that installed?
Thanks for providing all your ESP tutorials.
I was having problems installing my ESP32 with IDE with my hobby room computer so I tried it on my office computer and it worked! I think I may have had A typo in the Espressif address but I have both computers working now.
Thanks for your response. I double checked my spelling for URL’s and they are ok.
Not sure if this helps, but I’m programming an ESP32 through the arduino IDE and I don’t see the option for “ESP32 by Espressif Systems”. Mine is the ESP32 NodeMCU. And I select the board “Node32s”. Works fine for me.
hi i used the troubleshoot it worked but im just getting garbage though in the com
nvm i fixed it i had my baud rate set wrong on system monitor
Hallo…
PLEASE HELP MEEEE… (me not only)
I have upgrade my macos to BIG SUR…
Arduino works but not esp32 and esp8266…
I tried the CH*** install but doesn’t work…
How much time we have to wait that esp32 and/or esp8266 and/or CH*** and/or Arduino and/or Mac help us to upgrade???
Thank and have a nice week!
@}-,-‘——–
Gianfranco
Hi.
I still don’t know how to solve the problem.
https://rntlab.com/question/macintosh-big-sur-macos-11-0-1-breaks-esp32-programming-on-arduino-ide/
Regards,
Sara
Thank…
I have found the same this morning too.
https://www.silabs.com/community/interface/forum.topic.html/vcp_driver_for_macosbigsur110x-SWJK
We must wait… I hope little little time…
Bye bye!
I’ve downloaded the ESP32 successfully but I have a problem with connecting to the board. I’ve tried this on two different computers with different combinations of connecting cables and two different ESP32s and it wont work. For one of the computers I’m using (Mac), the COM port won’t even show up. Here’s the error message I’ve gotten:
A fatal error occurred: Failed to connect to ESP32: Timed out waiting for packet header
Thank you so much!
Hi.
Make sure you press the on-board BOOT button when you start seeing a lot of dots on the debugging window.
https://randomnerdtutorials.com/solved-failed-to-connect-to-esp32-timed-out-waiting-for-packet-header/
Regards,
Sara
Hi, thank you so much! I’ve tried pressing the BOOT button many times but I still can’t see the COM port, which worked a few days ago but is now gone, and I’m not sure what to do.
Thanks a lot.
Easy an clear to understand!!
I keep get the error message: Error downloading https://dl.espressif.com/dl/package_esp32_index.json
Check that you have internet connection while trying to install the boards.
Also, take a look at this article and see if it helps: https://randomnerdtutorials.com/solved-arduino-ide-esp32-esp8266-installation/
Regards,
Sara
I kept having this problem as well. In my case it was due to at least 2 things:
1) My certificate for arduino.cc was expired.
2) I have Java installed and it is a different (newer) version than what the Arduino IDE uses.
I wrote what I did on the Arduino forum. I hope it’s okay to post this here. If not I’ll put the whole long description here too.
forum.arduino.cc/index.php?topic=721801.msg4927205#msg4927205
I hope it helps. It would probably be easier for me to uninstall Java but it was quite a learning process so it was worth it to me anyway.
Good Luck,
Russ
Hi, If i bought DOIT esp32 version 36 pin, which board do i have to select? Is it the same DOIT esp32 DEVKIT V1?
Yes.
Hey, I followed all steps but I am continuously getting plugin error within arduino15 directly. Kindly tell me solution
Hi.
What is exactly the error?
It seems something related to this: https://randomnerdtutorials.com/solved-arduino-ide-esp32-esp8266-installation/
Regards,
Sara
Hi.
I followed above mentioned link but still facing same error, the exact error is: “Arduino: 1.8.15 (Windows 7), Board: “DOIT ESP32 DEVKIT V1, 80MHz, 921600, None”
c:/users/a/appdata/local/arduino15/packages/esp32/tools/xtensa-esp32-elf-gcc/1.22.0-80-g6c4433a-5.2.0/bin/../lib/gcc/xtensa-esp32-elf/5.2.0/../../../../xtensa-esp32-elf/bin/ld.exe: c:/users/a/appdata/local/arduino15/packages/esp32/tools/xtensa-esp32-elf-gcc/1.22.0-80-g6c4433a-5.2.0/bin/../libexec/gcc/xtensa-esp32-elf/5.2.0/liblto_plugin-0.dll: error loading plugin:
collect2.exe: error: ld returned 1 exit status
Multiple libraries were found for “WiFi.h”
Used: C:\Users\a\AppData\Local\Arduino15\packages\esp32\hardware\esp32\1.0.1\libraries\WiFi
Not used: C:\Program Files (x86)\Arduino\libraries\WiFi
exit status 1
Error compiling for board DOIT ESP32 DEVKIT V1.
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”
Previously, I was able to resolve multiple libraries error but another error I still unable to resolve.
Is there any line of the code highlighted when you get the error?
Regards,
Sara
No, no line highlighted. I just ran a simple wifi scan code.
I am really thankful to you for your carefully made tutorials: every single detail is described! That made it easy to me doing first steps with the esp32 module and later getting more and more knowledge to create my own projects 🙂
Andreas
Having trouble getting the latest version of Arduino IDE to work according to this tutorial. Would appreciate your thoughts.
Following the tutorial at https://randomnerdtutorials.com/ttgo-lora32-sx1276-arduino-ide. Presently in this section: “Installing OLED Libraries” and working through the linked material (https://github.com/adafruit/Adafruit_SSD1306).
Downloaded and installed Arduino IDE v1.8.15.
Step 2 is confusing. On the one hand it says, ‘Enter https://dl.espressif.com/dl/package_esp32_index.json into the “Additional Board Manager URLs” field as shown in the figure below.” But, the figure shows an additional link to be included. The total link to enter into the field is shown below the figure.
Step 3 says to select Arduino/Genuino Uno. No such board is listed in the latest version. Instead, I selected Arduino Uno.
In Step 4, are you talking about the Library Manager instead of the Board Manager? In the Board Manager, the dialog disappears once the board is selected. In the Library Manager, I searched for “esp32”, as shown in the tutorial. There is no library named “esp32 by Espressif Systems”.
Question: Does the board have to be plugged into the computer hosting the Arduino IDE for this tutorial to work as written? There is no indication of that in the tutorial.
Thank you for any insights you can offer.
Hi.
I think there is a misunderstanding.
In step 3 we don’t say to select any board. We say to go to Tools > Board > Boards Manager…
And then, search for “ESP32” there in the Boards Manager. We don’t talk in any place about the library manager.
If you find the instructions confusing, you can also check the video instructions.
Regards,
Sara
Indeed Sara. Thanks. The video is not optional since there is extra information there. Managed to complete the installation. Here are my notes:
Regarding Step 4:
Watched the video.
When I open Tools/Boards, there is a grayed-out “Board Manager” at the top of the dialog. I tried clicking on that and another dialog appeared. The search for esp32 was successful and I was able to download the correct library.
Turns out that the board has to be plugged in for it to be displayed in the Tools/Board menu. If you plug the board in while the Arduino IDE is active, the board will not show up. (It did not for me.) It was necessary to exit the IDE and restart it. Then the board will appear under Tools/Board/ESP32 Arduino/DOIT ESP32 DEVKIT v1, per the video.
It is still confusing which link to use at the beginning of this step.
Step 5. During the upload process, the program was compiled. These two warnings occurred:
C:\Users\sooth\AppData\Local\Arduino15\packages\esp32\hardware\esp32\1.0.6\cores\esp32\esp32-hal-spi.c:922:39: warning: initialization from incompatible pointer type [-Wincompatible-pointer-types]
uint8_t * last_out8 = &result[c_longs-1];
^
C:\Users\sooth\AppData\Local\Arduino15\packages\esp32\hardware\esp32\1.0.6\cores\esp32\esp32-hal-spi.c:923:40: warning: initialization from incompatible pointer type [-Wincompatible-pointer-types]
uint8_t * last_data8 = &last_data;
^
Maybe the program will still work but warnings like this should not be left laying around. They tend to rise up and bite later, as the software evolves.
Step 7. Is there supposed to be a figure in this step? If so, it appears to be dead. There is an odd icon where a figure might be.
Used Tools/Serial Monitor to access the serial monitor. The resulting dialog can easily be set for a baud rate of 115200.
Step 8. The program keeps cycling through a network scan. Found networks are listed in the serial monitor. It would be interesting to know what the number in parenthesis means, and what the asterix being present or not indicates. My ESP32 board display shows “Sending packet: 2040”.
By combining the written and video tutorials, this first experience was completed.
Ola, tem como eu saber a intensidade do sinal de uma placa para outra? Como se fosse o rssi do wifi…
Att
Hi.
In your Arduino IDE, with an ESP32 board selected, go to File > Examples > ESP32 > ESPNow > Master
In that example, there’s a section that gets the RSSI.
Regards,
Sara
Very clear instructions, thanks.
For Linux Mint 19.3:
All worked until compile time, when I got
ImportError: No module named serial
Online search gave lots of advice about python versions and editing esp32 package files, but the thing that worked was the obvious (in hindsight)
sudo apt install python-serial
After that, it compiled.
The port comes up as
/dev/ttyUSB0
and you have to give permission to access the device, see
https://askubuntu.com/questions/15570/configure-udev-to-change-permissions-on-usb-hid-device
and then it will upload.
Hi, I seem to be having problems with the IDE for some reason it doesnt seem to recognise some commands shown in other peoples source code including those on this site. I am trying to get what is normally an analogWrite command for PWM on Arduino to work on the ESP32. The example here talks about an ledcWrite but the IDE does not recognise it, just as it doesnt recognise pins like D01 that are printed on the board and in other peoples scripts.
Hi.
For the IDE to recognize functions specific for the ESP32, you need to have an ESP32 board selected.
In your Arduino IDE, go to Tools > Board and select an ESP32 board.
Regards,
Sara
Thank you for all the information you have provided.
Hello,
Concerning the ESP32 CAM (DM-ESP32 S version) I get an error:
“E (25829) wifi:AP has neither DSSS parameter nor HT Information, drop it”
when launching the Web server program. The “scanner” sketch works perfectly, it detects all active networks, but returns this error on only one address. Do you have any idea about this error?
Thank you in advance for your help.
Hi.
Unfortunately, I have no idea what that error means.
I never faced that error and I didn’t find anything about it on the internet.
Regards,
Sara
Hi i am getting error, what am I doing wrong. Could not find boards.txt in C:\Users\14168\Documents\Arduino\hardware\espressif\cores. Is it pre-1.5?
Hi. I have an ESp32_Wroom_32 board. Noted in previous thread response 6/2/21 “ You can choose ESP32 Dev Module or ESP32 Wrover Module “ as nowhere do I see above Wroom board. But on trying these boards previously Arduino still does not appear to recognize
Since this is among the first results for a search for “esp32 boards arduino” you might consider updating the address for the boards.
The real address on January/12/2022 is: https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json
Thank’s for this simple and excellent tuto
I’m trying to follow this example but I get this error compiling:
c:/users/closd/documents/arduinodata/packages/esp32/tools/xtensa-esp32-elf-gcc/1.22.0-97-gc752ad5-5.2.0/bin/../lib/gcc/xtensa-esp32-elf/5.2.0/../../../../xtensa-esp32-elf/bin/ld.exe: cannot find crt1-sim.o: No such file or directory
c:/users/closd/documents/arduinodata/packages/esp32/tools/xtensa-esp32-elf-gcc/1.22.0-97-gc752ad5-5.2.0/bin/../lib/gcc/xtensa-esp32-elf/5.2.0/../../../../xtensa-esp32-elf/bin/ld.exe: cannot find _vectors.o: No such file or directory
collect2.exe: error: ld returned 1 exit status
Multiple libraries were found for “WiFi.h”
Used: C:\Users\closd\Documents\ArduinoData\packages\esp32\hardware\esp32\2.0.2\libraries\WiFi
Not used: C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.57.0_x86__mdqgnx93n4wtt\libraries\WiFi
exit status 1
Error compiling for board AI Thinker ESP32-CAM.
I tried it on a new iMac and get the same issue. So I must be installing the ESP32 support wrong. The IDE works file with Arduino and Adafruit boards. I also have a ESP8266 working fine through the IDE.
Any clues why I managed to get this wrong on two different machines?
Hi.
That seems an issue with the ESP32 boards installation.
Uninstall the boards and install them again. You may also need to uninstall Arduino IDE and install again.
Regards,
Sara
ch9102 chip
“Connect GPIO0 (IO0) shortly to GND, just after the programming in Arduino starts.”
Update the Link, your old Link did cost me a hour!
https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json
Hi.
Thanks for your comment.
It’s updated now.
Regards,
Sara
I have had two problems using the CP210x USB to UART bridge to connect to my various ESP32 modules. After several months of successfully uploading sketches from Arduino IDE to TTGO T-Call ESP32 SIM800L modules I suddenly found the connection timing out and failing. I solved this by updating the driver (from Version 6.7.4.261 (19/09/2016) to 11.1.0.53 (18/02/2022).)
The second problem was installing the driver at all on my new ASUS Notebook. Despite apparent success (in terms of pop-up messages when installing) the ESP32 module was not recognised by Windows. The issue here turned out to be a ‘Memory Integrity’ security issue: see https://support.microsoft.com/en-au/windows/a-driver-can-t-load-on-this-device-8eea34e5-ff4b-16ec-870d-61a4a43b3dd5
The advice from Microsoft was to turn off memory integrity. It was already off so I tried turning it On, and the driver installed properly! Plugging in the ESP32 module gave the familiar recognition sound, and I was able to upload sketches OK. (On my older devices there is no such security patch and no problem installing the CP210x driver.)
If you upgraded to Ubuntu 22.04 and having issues with the ttyusb no longer working — general consensus is to remove the britty package since it’s interfering. regular usb devices such mice or usb harddrive work fine but the esp32,8266, etc won’t work via usb without removing that package. I couldn’t get any of my unos to work either.
https://bugs.launchpad.net/ubuntu/+source/brltty/+bug/1970408
Fixed in latest update:
from the changelog (I think this applies?), I was on brltty (6.4-4ubuntu2) :
brltty (6.4-4ubuntu3) jammy; urgency=medium
Try to resolve brltty conflicting with generic serials (lp: #1958224)
debian/brltty.udev.rules, debian/brltty-usb-generic.rules,
debian/brltty.examples:
split the generic identifier udev rules to a separate rule which
is going to be distributed as an example but not installed by default.
Those rules are needed by some braille readers to work but conflict
with cp210x and FTDI serial ports. Those special devices had required
manual setup in Ubuntu since 2011 and were only added back to the
default configuration due to a merge error.
Hello,
Thank you all for sharing their knowledge/experience.
While trying to upload the WIFI Scan example, I received the following error message;
exec: “{runtime.tools.ctags.path}/ctags”: file does not exist
Error compiling for board ESP32 Dev Module.
Then I tried using Boot button however, there come no “connecting … ” so that could release the Boot button and, finally the same message showed;
exec: “{runtime.tools.ctags.path}/ctags”: file does not exist
Error compiling for board ESP32 Dev Module.
Hi.
I suggest uninstalling and installing the Arduino IDE from start.
Regards,
Sara
Hi sara and Rui
can i know what the problem with this code?? I already follow step by step by wathcing this youtube ….https://www.youtube.com/watch?v=-GDlk6qgQ_E
Arduino: 1.8.19 (Windows 10), Board: “ESP32 Wrover Module, Huge APP (3MB No OTA/1MB SPIFFS), QIO, 40MHz, 115200, None”
Sketch uses 2594774 bytes (82%) of program storage space. Maximum is 3145728 bytes.
Global variables use 56256 bytes (17%) of dynamic memory, leaving 271424 bytes for local variables. Maximum is 327680 bytes.
esptool.py v3.0-dev
Serial port COM4
Connecting…
Traceback (most recent call last):
File “esptool.py”, line 3682, in
File “esptool.py”, line 3675, in _main
File “esptool.py”, line 3330, in main
File “esptool.py”, line 512, in connect
File “esptool.py”, line 492, in _connect_attempt
File “esptool.py”, line 431, in sync
File “esptool.py”, line 369, in command
File “esptool.py”, line 332, in write
File “site-packages\serial\serialwin32.py”, line 323, in write
serial.serialutil.SerialTimeoutException: Write timeout
Failed to execute script esptool
An error occurred while uploading the sketch
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