nRF5 SDK for AirFuel

Software Development Kit for Airfuel-compliant wireless charging applications



The nRF5 SDK for AirFuel, for both the nRF51 Series and nRF52 Series SoCs, supports the development of AirFuel Alliance-compliant wireless charging applications. The SDK allows developers to build wireless charging products. Such products fall into two categories;

  • Charging pads that supply the charge wirelessly,
  • Personal devices where wireless charging functionality can eliminate the USB cable.

Smartphones, wearable products, cameras, toys and almost any product with a re-chargeable battery can benefit from being able to charge wirelessly. Charging pads can be stand-alone products or integrated into other products such as automobiles and furniture. With interoperability assured by the Airfuel Alliance certification program, charging pads can recharge devices from any manufacturer enabling one charger to be used for multiple products at home, or in public spaces.

This nRF5 SDK for Airfuel has examples for both sides of an AirFuel application - Power Transmitting Unit (PTU) and Power Receiving Unit (PRU)


For more information on obtaining the nRF5 SDK for Airfuel, please contact your local Nordic Semiconductor Sales Manager.


Learn more about Airfuel here


The nRF5 SDK for AirFuel v2.x and above, is compatible with the following SoftDevices:

Device SoftDevice compatibility
nRF52832 S132 v2.0
nRF51822/nRF51824/nRF51422 S130 v2.0


Note: The nRF51 A4WP SDK (v1.x) remains available and supports the nRF51822/nRF51422 devices, PTU applications based on the S120 v2.1 SoftDevice and PRU applications based on the S110 v8.0 SoftDevice.




Supported products/complementary

Product Brief Description
S120 nRF51822 SoftDevice
S130 nRF51 Concurrent Multi-role SoftDevice
S132 nRF52 Concurrent Multi-role SoftDevice

Ordering codes



Software Development Kit
Nordic Semiconductor's Software Development Kits (SDK) are your starting point for software development on the nRF51 and nRF52 Series. It contains source code libraries and example applications covering wireless functions, libraries for all peripherals, bootloaders, Wired and OTA FW upgrades, RTOS examples, serialization libraries and more.

Software Development Kit

Code Name Version
nRF5 AirFuel-SDK nRF5 AirFuel PRU and PTU SDK v2.x.x


PC software
To aid your product development, Nordic also offers a range of tools enabling you to interact with and monitor your product


Code Name Version
A4WP-SDK-zip A4WP PRU and PTU SDK v1.x.x