In the previous issue of Elektor we showed how easy it is to program the powerful ESP32 in the Arduino IDE. However, if you want to utilize the full functionality of this microcontroller with integrated WLAN and Bluetooth, you have to use the native ESP IoT Development Framework (IDF). Working with the various command line tools can be intimidating for beginners or developers without a Linux background, so this article aims to show you how it’s done.Ubuntu is the preferred operating system at Espressif, and the actions described in this article are intended to be performed under Ubuntu 14.04 LTS. If you use Windows instead, you can obtain more information at [2]. And if you are an Apple user, you should consult [3].