Thanks for getting back to me. For me, install tools in eclipse did not work on its own. I seem to recall the issue was when I clean generated IDF app, it came up with python dependencies issues but rather than the ones I had seen before where it says the dependency it only had python. I concluded t...

If the above doesn't help might be easier to zip up the latest cut of your project and I will take another look.

Think of the header files as declaring to the compiler that at link time you will be providing that variable / function etc at link time so pretend you have already have it for now. The corresponding source files are then compiled independently using either a C or C++ compiler and the linker joins t...

In the spi.h file, the #includes above the extern C are standard C header files and therefore need to be inside the wrapper. If that doesn't work can you post the full compile log?

Hi, I have rebuilt my laptop and done a clean install of idf and the eclipse plugin. I have a couple of questions / observations 1. The Eclipse plugin seems to require python v3.7 which on my system (Ubuntu 19.10) is installed as python3 as opposed to python. In the install tools section I can point...

You don't mention what linker errors you have but it is probably because you have put the #include "spi.h" inside the extern "C" wrapper in both source files. The way to think about it is that if the file extension is .cpp the c++ compiler will be invoked and will alter all the names during the comp...

Glad you got it working. Once you start using functions from the header files I believe you will get linker errors if you don't put the #includes in extern C wrapper.

Hi Vikram Yes move to C++ has been fine and almost done refactoring the code. I have split the initialisation and send email into separate methods and split the SMTP only code out into a class. I have a personal preference not to use goto (sorry) so am in the middle of reworking the code to remove t...

Hi I have done this a few times off the top of my head the steps are... 1. Create the sample / new project using the project -> new etc route. 2. Change the generated main.c to main.cpp 3. Put the extern C around the header file includes too 4. Add the app_main extern inside the extern C braces i.e....

@ESP_Vikram

server is smtp.googlemail.com
port 587

The receiving email address is a yahoo email address and I am viewing it with their online web client.

Hope this helps.

Thanks

Lee.