diff --git a/bbn_m5atomS3_lite_TFminiS_range_lidar/README.md b/bbn_m5atomS3_lite_TFminiS_range_lidar/README.md
index f16e503..1a7ffd7 100644
--- a/bbn_m5atomS3_lite_TFminiS_range_lidar/README.md
+++ b/bbn_m5atomS3_lite_TFminiS_range_lidar/README.md
@@ -11,3 +11,5 @@ $BBXDR,D,0.20,M,RANGE_TFminiS*xx
 Benewake TFmini-S UART LiDAR:
 
 https://en.benewake.com/TFminiS/
+
+Used by some to measure bilge levels.