diff --git a/bbn_m5atomS3_lite_JSN-SR04T/README.md b/bbn_m5atomS3_lite_JSN-SR04T/README.md
index 9f7813c..d3aac87 100644
--- a/bbn_m5atomS3_lite_JSN-SR04T/README.md
+++ b/bbn_m5atomS3_lite_JSN-SR04T/README.md
@@ -3,3 +3,13 @@
 https://www.makerguides.com/interfacing-esp32-and-jsn-sr04t-waterproof-ultrasonic-sensor/
 
 https://bitbucket.org/teckel12/arduino-new-ping/wiki/Home
+
+## NMEA 0183 XDR
+
+Produces NMEA 0183 XDR vua USB serial with baud rate 4800
+
+````
+$BBXDR,D,0.52,M,Range_JSN_S04T*55
+$BBXDR,D,0.70,M,Range_JSN_S04T*55
+$BBXDR,D,0.71,M,Range_JSN_S04T*54
+````