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Software Development🔗


Espressif provides several software tools and frameworks. This chapter gives you an overview of the major software components Espressif IoT Development Framework (ESP-IDF) and Espressif AT software (ESP-AT).


The PAN9520 is a radio certified module. There are conditions on hardware and software which must be met for the modular approval to be valid.

For detailed information please refer to PAN9520 Module Integration Guide at

IoT Development Framework (ESP-IDF)🔗

Espressif provides the IoT Development Framework (ESP-IDF) for software development. This includes a multitude of examples that you can use as starting point for the software development.

Software, general information, and instructions are provided by Espressif on e.g. following web pages:

You can check out ESP-IDF for an introduction of the Espressif IoT Development Framework (ESP-IDF).

ESP-AT Software🔗

Instead of developing embedded software directly on the PAN9520, you can use a AT software for controlling the module with a host. The AT firmware is provided by Espressif and is available as pre-built binary set or as source code.

The following web pages are related to the AT software:

The latest release for the PAN9520 is v2.1.0.0_esp32s2.

You can check out ESP-AT for an explanation of the ESP-AT software.