diff --git a/README.md b/README.md
index 6ac14f7..0c882e9 100644
--- a/README.md
+++ b/README.md
@@ -41,6 +41,17 @@ TODO: make a custom WLED build with
 - DMX in enabled (usermod)
 - all pins configured
 
+status
+------
+
+On the RJ45 ports there are 4 LEDs.
+These indicate the status:
+
+- the center-right LED indicates the >8V status: it is on when 8-60V power is provided to the board
+- the rightmost LED indicates the 5V status: it is on when the on-board DC-DC voltage regulator converts the 8-60V to 5V right after 8-60V is plugged in, or when 5V power is provided externally
+- the center-left LED indicates the WLED status: it is on when WLED started successfully
+- the leftmost LED indicates the DMX status: it blinks on DMX input traffic
+
 installation
 ============