The scripts introduced in this step install compilation tools required by ESP-IDF inside

the user home directory:

$HOME/.espressif on Linux and macOS, %USERPROFILE%.espressif on Windows. If

you wish to install the tools into a different directory, set the environment

variables IDF_TOOLS_PATH before running the installtion scripts. Make sure that your

user has sufficient permissions to read and write this path.

If changing the IDF_TOOLS_PATH, make sure it is set to the same value every time

the install.bat/install.sh and export.bat/export.sh scripts are executed.

Step 4. Set up the Environment Variables

The installed tools are not yet added to the PATH environment variable. To make the

tools usable from the command line, some environment variables must be set. ESP-IDF

provides another script which does that.

ESP-IDF Tools Installer for Windows creates an "ESP-IDF Command Prompt" shortcut in

the Start Menu. This shortcut opens the Command Prompt and sets up all the required

environment variables. You can open this shortcut and proceed to the next step.

Alternatively, if you want to use ESP-IDF in an existing Command Prompt window, you

can run:

. $HOME/esp/esp-idf/export.sh

Note the space between the leading dot and the path!

You can also automate this step, making ESP-IDF tools available in every terminal, by

adding this line to your .profile or .bash_profile script.

Step 5. Start a Project

Now you are ready to prepare your applications for ESP32. You can start with

single_chip/recognition_solution project from examples directory in IDF.

Copy single_chip/recognition_solution to ~/esp directory:

cd ~/esp

xcopy /e /i %IDF_PATH%\examples\ single_chip/recognition_solution