Great hardware deserves great software
Great hardware deserves great software. For the nRF53 and nRF52 Series we offer the nRF Connect SDK, a complete software development kit for developing Bluetooth Low Energy applications. It integrates the scalable Zephyr RTOS, a feature-rich Bluetooth LE protocols stack, a variety of samples, hardware drivers and much more.
We have ported the lower layers of our SoftDevices to the nRF Connect SDK, bringing with us the best-in-class interoperability our SoftDevices are known for. The result is the SoftDevice Controller. The SoftDevice Controller is combined with the Zephyr Bluetooth Host to form a feature-rich Bluetooth LE protocol stack. The stack is compatible with all nRF52 and nRF53 Series SoCs and supports Broadcaster, Peripheral, Observer and Central roles. It is a Bluetooth 5.2 qualified stack supporting 2 Mbps, Advertising Extensions, channel selection algorithm #2 and Long Range. It also supports Privacy 1.2, LE Data Packet Length Extension, configurable ATT MTU, L2CAP connection-oriented channels and LE Secure Connections.
The nRF5 SDK can be still used with the nRF52 Series, but it is in maintenance mode. For all new projects, we recommend the nRF Connect SDK.
Software development kit
nRF Connect SDK
nRF Connect SDK is a common software development kit for Bluetooth Low Energy, Wi-Fi, cellular IoT, Bluetooth mesh, Thread, Zigbee and Matter. It supports all our nRF52, nRF53, nRF70 and nRF91 Series wireless devices.
nRF Connect SDK hands-on
Video series
Rapid prototyping with nRF Connect SDK
Sensors in nRF Connect SDK
Send and receive data through Bluetooth LE
Storing data on non-volatile memory
Power Optimization and the PPK2
Adding FOTA over Bluetooth LE
To ease onboarding, our Nordic Developer Academy includes three free hands-on online courses for Bluetooth LE product development: nRF Connect SDK Fundamentals, Bluetooth Low Energy Fundamentals, and nRF Connect SDK Intermediate. These courses have enrolled more than 16,000 developers, have received an average rating of 9.1/10, and provide more than 30 hours of in-depth training. Hundreds of nRF Connect SDK-based products have already been brought to market, and we receive positive feedback from adopters.