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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

Before any device can be found, BLE divides the 2.4 GHz band into 40 small channels. Three are reserved for discovery, and the other 37 are kept for a later connection.

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