What is the difference in the Lyra series naming scheme: Lyra versus Lyra 22 and Lyra 24?

Answer

Our Lyra series includes two main versions: Lyra 22 and Lyra 24. Lyra 22 is based on the EFR32BG22 SoC, whereas Lyra 24 uses the EFR32BG24 SoC from Silicon Labs. Both are built and featuring the Wireless Gecko Series 2. This naming scheme helps distinguish between the two series and their parts.

Please keep in mind that Lyra and Lyra 22 are the same and refer to the identical version. There is no difference between Lyra or Lyra 22 (and vice versa). Typically, when we mention or just say Lyra, we mean Lyra 22, unless otherwise specified, as it was the first hardware generation we released.

First Lyra Generation = Lyra aka. Lyra 22: https://www.ezurio.com/lyra-series.
Second Lyra Generation = Lyra 24: https://www.ezurio.com/lyra24-series.