diff --git a/README.md b/README.md
index a1b911e..4184213 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,9 @@
 # WiringNP
 This is a GPIO access library for NanoPI. It is based on the WiringOP for Orange PI which is based on original WiringPi for Raspberry Pi.
 
-Currently only NanoPi M1 board supported
\ No newline at end of file
+Currently supported boards:
+NanoPI M1
+NanoPI Neo (please ignore extra "gpio readall" pins for now)
+
+## PWM
+PWM is supported on NanoPI M1 debug port, physical pin 4