Bluetooth Low Energy is designed from ground up to provide reliable communication link in the crowded 2.4GHz band. The following bullets summarize the design consideration to avoid interference.
3 Advertising Channels
- Located in Wi-Fi channel gaps
- 2402, 2426, 2480MHz
- Short stay in every frequency
High Level Protocol Channel Avoidance
- Busy channels are “black-listed” and will be avoided