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RFM22 freq tuning

Description

Allow frequency adjustment for RFM22 module.
Some low cost / clone modules are not well frequency tuned and cause issues at lower baudrates.
A small frequency misalignment between two modules is acceptable since the preamble is used to do a AFC.
Bigger frequency misalignment simply do not allow connection/link.

Status

Assignee

Lalanne Laurent

Reporter

Lalanne Laurent

Labels

None

Components

Fix versions

Priority

Medium