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BLE Connection Lifecycle

See how Bluetooth Low Energy saves power through scheduled bursts and long sleep

Advertising & Discovery
WiFi Ch 1WiFi Ch 6WiFi Ch 11Ch 372402 MHzCh 382426 MHzCh 392480 MHz2402242624502480Frequency (MHz)Advertising channels (3)Data channels (37)WiFi overlap zones
Step 1 / 9The BLE Channel Plan

BLE uses 40 radio channels in the 2.4 GHz band. Three are special "advertising" channels used for discovery. They are spread across the band so that even if part of the spectrum is jammed by WiFi, at least one advertising channel will likely get through.

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