450-00184

Yes. For the Lyra 24P USB Dongle with part number #450-00184 it is required (in the very first instance) to configure the GPIO of LED (SIO1) with the AT+SIOC 1,2,0 command as an output. 

Now you can simply use AT+SIOW 1,1 and AT+SIOW 1,0 to turn on and off the LED. This information can also be found in our Lyra 24P USB Dongle User Guide on page 8, section 5.3: Using the Dongle LED with AT Commands.

The blue LED is mapped to PA08 (Pin 17) internally and not active by default. See the Lyra 24P Datasheet for further details about the pinout.

Silicon Labs provides a Wireless Direct Test Mode (DTM) application that can programmed onto a Lyra module that allows for DTM commands to be completed wirelessly from another device such as a mobile phone using EFR Connect Mobile app.

There is an existing page (Implementing Wireless Direct Test Mode (DTM)) in the Silicon Labs Bluetooth Docs that explains operation and provides source to be added to a Simplicity Studio project. However, at the time of the writing of this FAQ the source is based on much older Simplicity Studio 4 and doesn’t build properly with Simplicity Studio 5. An updated Wireless DTM application is available on the following Silicon Labs GIT page and source provided will build using Simplicity Studio 5.

Bluetooth Wireless DTM

An application is created in Simplicity Studio IDE based on Bluetooth_soc_empty application. The existing app.c file is replaced with app.c provided from the src folder in Bluetooth Wireless DTM. GATT table configuration is also made available in the config folder in Bluetooth Wireless DTM.

With the Wireless DTM application loaded and programmed the Lyra module will begin advertising and show as dtm_test. 

Once connected to Lyra dtm_test you can see the GATT Services; DTM Control, DTM RX and DTM TX. Note the services will not be presented as shown below. You will need to determine each service based on UUID which is shown on Bluetooth Wireless DTM but also provided below for demonstration.

Expanding on the DTM Control Service the characteristics for that service can be observed. Each characteristic is written to configure the test as detailed at in Bluetooth Wireless DTM.

Further command and command argument information can be found on the Testing Commands page.

Lyra 24 modules do support Wirepas 2.4GHz Mesh. Wirepas added support of the EFR32BG24 BLE MCU in v5.4.0 FW release:

Wirepas Mesh 2.4 GHz Firmware v5.4.0 for EFR32xG24 Release Notes: Wirepas Developer Portal

With the larger 256K RAM size on the EFR32BG24 BLE MCU used on Lyra 24, Wirepas Nodes can be configured for LE Mode and Low Latency Node (Sink/Router Modes).

For more details on Lyra P and Lyra S Wirepas solution refer to the following page:

Wirepas Partnership (lairdconnect.com)

For information related to the Wirepas Mesh 2.4GHz FW v5.3.0 refer to the following Release Notes: