Dear Microcontroller,

Thank you a thousand times.

Well, my problem has then been that the OLED was not powered. What a pity Heltec does not provide a few pages on how to use the OLED. It is strange that i2c_master_probe() return successfully, when the OLED is not powered. I have discovered, that ...

Dear Microcontroller,

Thank you for replying.

I have tried a few of the possibilities you list, but they do not work. I get more and more the impression that there is a deviation of the I2C timing of the Heltec LoRa32 controller of the 0.96" 128x64 OLED.

If you know of source code that works with ...

Dear all,

I am stuck and cry for help.
I am using the ESP-IDF master version. I use it for programming a Heltec LoRa32 board with a 0.96" 128 x 64 OLED driven by a SSD1306 using I2C.
The display shows nothing. I have tested a couple of initialization sequences, I have tried 100kHz and 400 kHz clock ...

Dear Sirs,

I am using the master branch downloaded and installed 4 days ago. I have detected 2 issues:

1. When I start a New Project, two versions of the ESP-IDF are shown to chose between. One is called 6.0 and the other 6.0.0. I have used the 6.0.0.

2. When I do a fullclean, I get an "access ...

Thanks.

I have re-re-installed ESP-IDF in VS Code and it seems to work now.

I hope the installation process will stabilize.

Regards,
Jorgen

Thank you for your suggestion.

I gave up. After uninstalling and reinstalling a number of times including python, I gave up.

I consulted ChatGPT and followed its instruction for uninstalling and cleaning up i.e. deleting files and various entries created by ESP-IDF or VS Code installations. Then I ...

I am upgrading to ESP-IDF 5.4.1. I use Windows 11 and the latest version of Visual Studio Code (VSC).

When I start configuring ESP-IDF within VSC, I get the following error:
"c:\Espressif\tools\idf-python\3.11.2\python.exe -m pip" is not valid. (ERROR_INVALID_PIP)

The OUTPUT is (last lines):
idf ...

Sorry, the attachment was missing first time round.

I installed framework 5.4.1. When I tried to start a New Project I got the error "Cannot read properties of undefined (reading 'fsPath*)".
I downloaded esp-idf-extensions.vsix and used in VSC View->Command Palette->Extension: Install from VSIX the selected the downloaded esp-idf-extensions.xsix file ...

Thanks,

This link provides better information, but as stated in my previous mail the way is wrong on how to get to the parameters configuring the PSRAM.

https://docs.espressif.com/projects/esp ... onfig.html

Regards,
Jorgen