https://www.silabs.com/development-tools/mcu/8-bit/slstk2022a-efm8bb3-starter-kit
SLSTK2022A EFM8BB3 High Flash Capacity 50 MHz 8-bit MCU Starter Kit - Silicon Labs
The Silicon Labs EFM8BB Starter Kit is an excellent starting point to evaluate and develop on the general-purpose, high flash capacity, 50 MHz EFM8 Busy Bee...