A highly efficient logging framework that targets resource-constrained devices, like microcontrollers.

Check out the defmt book at https://defmt.ferrous-systems.com for more information about how to use it.

Compatibility

The defmt wire format might change between major versions. Attempting to read a defmt stream with an incompatible version will result in an error. This means that you have to update both the host and target side if a breaking change in defmt is released.