Online Resources
EFR32 hardware
BGM220 Explorer Kit User's Guide
EFR32xG22 Wireless Gecko Reference Manual
BGM220P Wireless Gecko Bluetooth Module Data Sheet
Software
Bluetooth SDK v3.x Quick-Start Guide
GECKO Platform API Documentation
GECKO Platform drivers API
Bluetooth resourses
Bluetooth API Documentation
SIG assigned numbers
Different Value Types of Characteristics
Configuring Advertiser View on EFR Connect app
Older Bluetooth KBA articles
Silicon Labs Bluetooth Workshops 2021
USB Human Interface Devices