Do the Lyra (22) and Lyra 24 modules support NFC (Near Field Communication)?

Answer

NFC (Near Field Communication) allows devices to communicate wirelessly when positioned in close proximity, usually within a few centimetres. One device creates a small magnetic field that powers the other, enabling them to transfer data. This short-range setup is secure, making NFC ideal for tasks like contactless payments, access control, and quick data transfers. Unfortunately, neither the Lyra (22) nor the Lyra 24 series support NFC right out of the box; both are designed as Bluetooth Low Energy 5 (BLE)-only solutions.

The reason for this is primarily because Silicon Labs does not natively support NFC, as they lack built-in NFC hardware. Instead, NFC functionality, when needed, is typically achieved by interfacing with external components. In this case, developers often integrate other NFC modules or chips alongside the EFR32 to enable the desired features. Silicon Labs offers NFC libraries (https://github.com/SiliconLabs/nfc) and examples to help incorporate NFC capabilities, such as with the NXP NT3H2111, for example: https://github.com/SiliconLabs/bluetooth_applications/tree/master/bluetooth_nfc_pairing.