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index 632b6de..9541dcf 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,9 @@
-# 1wire-search
-Cleanly reimplemented 1-Wire bus search algorithm 
+# 1-Wire search algorithm
+
+This project provides a reimplemented 1-Wire bus search algorithm 
+(used to identify e.g. DS18x20 thermometers on a common open-drain bus).
+
+The algorithm uses no global variables and allows finding 
+a unlimited number of bus devices.
+
+For an example of usage, see `main.c`.