diff --git a/simulator/readme.md b/simulator/readme.md
index b3b8045632..afbcc1ae60 100644
--- a/simulator/readme.md
+++ b/simulator/readme.md
@@ -7,3 +7,10 @@ Simulator runs a subset of ECU on your pc, easier to debug some things, tighter
 * mocked outputs
 * SocketCAN integration on Linux
 
+
+
+One of ways to mock analog sensors
+```
+// see SensorType.java for numeric ordinals
+set_sensor_mock 4 90
+```