diff --git a/ESP32-NeoMethods.md b/ESP32-NeoMethods.md
index 7cc916f..61dbbe2 100644
--- a/ESP32-NeoMethods.md
+++ b/ESP32-NeoMethods.md
@@ -1,5 +1,5 @@
 **NOTE:** The ESP32 and the ESP32S2 both have some pins dedicated for input only.  The following NeoMethods are restricted to use only output pins.  
-For the ESP32 all pins below 34 are output pins. You will still need to check your board to make sure any of these pins are available.  
+For the ESP32 all pins below 34 are output pins. You will still need to check your board to make sure any of these pins are available.  [Esp32 Dev Pin Map](https://github.com/espressif/arduino-esp32#esp32dev-board-pinmap)  
 For the ESP32S2 all pins other than 46 are output pins.  Again, please check your specific board for available pins.  
 The bitbang method has further restrictions in that it will only support pins below 32.