ESP-IDF for Modules ESP32 Complete Installation

This time we will install and configure  Espressif IoT Development Framework platform (ESP-IDF) from scratch, this is the official espressif development platform for the ESP32 modules.

In previous tutorials we talked a little about the ESP32 that have Wi-Fi (2.4 GHz band) and Bluetooth 4.2 in a single module among other features.

ESP32 eBox&Widora first review

I took the task of testing the documentation on the installation of ESP-IDF, since I believe that there are some confusions that complicate the installation and I hope that the doubts are clarified here.

Official Website: ESP-IDF espressif
Official Github: ESP-IDF

Requirements

  • PC with Linux Operating System (Ubuntu / Debian) or Virtualbox, in my case Lubuntu.
  • Toolchain to build the application for ESP32.
  • ESP-IDF that essentially contains API for ESP32. and scripts to operate the Toolchain.
  • A text editor, to edit or create programs.

Materials and where to buy them cheaper

 





 

PC with Linux operating system (Ubuntu / Debian) or Virtualbox

Since the installation on a Linux operating system, Lubuntu in my case, is a derivative of (Ubuntu), although there is a version of ESP-IDF for Windows, you recommend that you install a virtual machine with Linux.

Note: I think I like Linux in this case (Ubuntu / Debian) I personally prefer lubuntu, but it’s the same.

 

Video Tutorial Complete Installation and Configuration

Although there is an official guide we will summarize the steps taken:

Install Toolchain

Install packages for Ubuntu or Debian:

Configure Toolchain

Download toolchain according to your operating system version

 

Download this file, then extract it in the esp folder.

  • Create esp folder, in current user folder.

  • enter to esp folder.

  • Unzip Toolchain “xtensa-esp32-elf”, change path depending on downloaded file 32bits or 64bits depending on your case.

Add Path “xtensa-esp32-elf”

exit esp folder and locate in user folder.

  • Edit .profile file with nano.

  • Add path “xtensa-esp32-elf” to the end of file.

Similar a esta Vista

 

Restart PC to see changes, indicate restart session, I prefer to restart.

  • Verify Path

  • Verify installation and configuration of “xtensa-esp32-elf”.

In case of returning “the order was not found” after restarting verify and redo the previous steps, possibly some error in the route stored in the PATH.

 





 

 Install ESP-IDF

ESP-IDF contains the API for ESP32, scripts for toolchain and examples.

  • Clone github’s esp-idf project in esp folder

  • Login to the esp-idf folder and update submodules from github

Add Path “ESP-IDF”

  • Edit .profile file with nano

  • Add PATH “IDF_PATH”

  • Verify PATH

  • Restart PC to view changes.

Completed and Complete Installation of ESP-IDF connect our ESP32 !!!





 

Hello World in ESP32 with ESP-IDF

I recommend watching the complete video tutorial in the step by step with the official guide and try downloading an example “hello world” to  ESP32.

  • Configuration menu, configuration interface of ESP-IDF, does not require modifications

 

Compile the application “hello world” additionally the boot manager and generate a partition table based on the configuration, in a few words compile the code.

 

  • Download code to Module ESP32 via serial

 

 

  • To visualize example in action !! Open serial terminal, and display “helloworld” on the command:

Complete and detailed information, Github Github ESP-IDF  project.

 

Clarification using .profile or .bashrc

Previously investigate other tutorials on installation of esp-idf, in many of them they use the .bashrc files but they do not explain why or they just give a doubtful answer, look in some forums and say the following about the differences between .profile or .bashrc, I will personally use .profile as the manual suggests.

.profile is used at the time of login, either in a terminal or on your desktop. Therefore, the configuration will always be applied when you have logged in.

On the other hand, .Bashrc runs every time you open a Bash session, for example, every time you open a terminal.

Note: I’m not an expert Linux, I do not want to generate controversy on this issue, I only share this possible clarification if it is wrong, excuse me and comment.

Source: Difference between .bashrc and .profile file? 

 

Conclusions

Many will say that because I made the guide that already exists, well consider that the official version in some point can confuse referring to the specific steps.

Other option available for esp-idf is to compile from scratch toolchain but this option takes more time.

Again, if you want to make complete and complex applications for ESP32, nothing better than ESP-IDF advantages.

  • created by espressif.
  • more updates
  • more examples.
  • more hardware applications.
  • Forums and support.

We will also explore other options available to program them ESP32:

  • Arduino IDE
  • Mongoose

Reference





 

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