diff --git a/README.md b/README.md
index 8c289fb..f334dd7 100644
--- a/README.md
+++ b/README.md
@@ -21,3 +21,7 @@ A Test-Driven Development (TDD) workflow was followed throughout the project. Ev
 The reader never throws on I/O errors; every outcome is expressed through the enum so callers can react without exception handling. A helper `trim_in_place` strips trailing whitespace and newlines before comparison.
 
 **Tests:** [tests/test_sysfs_read.cxx](tests/test_sysfs_read.cxx) — covers all five status branches by writing controlled content to a temporary file.
+
+## Producer class / thread
+
+`Producer` ([include/Producer.hpp](include/Producer.hpp), [src/core/Producer.cxx](src/core/Producer.cxx)) runs a worker `std::thread` that periodically polls the `SysfsReader` and, when the status is `Enabled`, generates a random integer and forwards it through an injected `send_fn` callback. The polling interval is 1 second under normal conditions and 7 seconds when the sysfs file reports `ErrorTempTooHigh` (cool-down).