It's used only as a dev dependency in 6 crates.

Depender (with downloads and own rev deps) esp-hal-smartled version
5.3K 2 esp32s3-hal dev ^0.8.0
5.2K 2 esp32s2-hal dev ^0.8.0
800 8 esp32-hal dev ^0.8.0
750 3 esp32c3-hal dev ^0.8.0
420 2 esp32c6-hal dev ^0.8.0
110 esp32h2-hal dev ^0.8.0