Aliro

An open standard for secure mobile access control using smartphones and wearables

Aliro is a standardized communication protocol developed by the Connectivity Standards Alliance (CSA) that enables interoperability between mobile devices, wearables, and access control readers from different manufacturers. The standard defines how smartphones and wearables can securely replace physical keys for unlocking doors and entry points in both residential and commercial applications.

The protocol supports multiple wireless technologies, including Bluetooth Low Energy (BLE), Ultra-Wideband (UWB), and NFC, allowing developers to choose the appropriate technology for their specific use case.

Nordic Semiconductor is actively involved in the development of the Aliro standard and provides complete hardware and software solutions for building Aliro-compliant access control devices.

Where to get started?

Development Hardware

To get started developing your Aliro product, Nordic offers several development kits depending on your implementation requirements.

The nRF54L15 DK kit supports Aliro over NFC for tap-to-unlock implementations and can run Matter on the same SoC. Please note that you will need an external IC with NFC reader/writer mode capabilities, as our SoCs only support NFC tag functionality. Nordic's Aliro reference natively integrates the NFC driver for STMicroelectronics' ST25R300, but platform abstraction APIs allow for easy integration of an NFC transceiver from any silicon vendor.

For full-featured designs combining Matter, Aliro over NFC, and Aliro over Bluetooth LE + UWB, or for complex Matter + Aliro over NFC designs, use the nRF54LM20 DK or nRF5340 DK. These SoCs provide large memory, an extended set of peripherals, and support the multiprotocol connectivity required for more complex use cases, such as hands-free Aliro access. When implementing Matter over Wi-Fi alongside Aliro, the nRF54LM20A can be paired with the nRF7002 for Wi-Fi connectivity.

When using these kits, all the SoC's functions can be used and tested. All analog and digital interfaces, and GPIOs are available via headers and edge connectors. An onboard SEGGER J-Link enables programming, debugging, and even RTOS awareness during debugging.

UWB collaboration with Qorvo

For UWB capability in BLE + UWB implementations, Nordic is collaborating with Qorvo on a joint reference application combining Nordic's nRF54L Series with Qorvo's QM35825 UWB SoC.

Power Profiling with PPK2

Our Power Profiler Kit II (PPK2) is a standalone kit used to supply and measure currents from sub-µA up to 1A. The dedicated current measurement pins on our DKs can be used to connect DKs to a PPK2. The PPK2 can even use digital inputs and work as a low-end logic analyzer, enabling code-synchronized measurements, critical for optimizing power consumption in battery-operated access control devices.

Prototyping Platform

Nordic Thingy:53

The Thingy:53 is a multi-sensor prototyping platform designed for rapid wireless IoT and embedded machine learning development
The Matter weather station on Thingy:53 is is matter certified