Welcome to the nRF Connect SDK!

Important

nRF Connect SDK v2.1.99-dev2 is a development tag and will be replaced by v2.2.0 in the future.

The development tag contains the following updates:

New Wi-Fi: Scan sample.
New Wi-Fi: Station sample.
New Wi-Fi: Radio test sample, with support for FICR/OTP programming.
Fixes to the following features:
- DPD calibration.
- TX power calibration.
- Power saving.

For other changes that are included in this development tag, see Changelog for nRF Connect SDK v2.1.99-dev2.

The nRF Connect SDK is where you begin building low-power wireless applications with Nordic Semiconductor nRF52, nRF53, and nRF91 Series devices.

The SDK contains optimized cellular IoT (LTE-M and NB-IoT), Bluetooth® Low Energy, Thread, Zigbee, and Bluetooth mesh stacks, a range of applications, samples, and reference implementations, as well as a full suite of drivers for Nordic Semiconductor’s devices. The nRF Connect SDK includes the Zephyr™ real-time operating system (RTOS), which is built for connected low power products.

To access different versions of the nRF Connect SDK documentation, use the version drop-down in the top right corner. A “99” at the end of the version number of this documentation indicates continuous updates on the main branch since the previous major.minor release.

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