diff --git a/source/_components/rpi_gpio.markdown b/source/_components/rpi_gpio.markdown
index 780c1caaea9..de60def7e1b 100644
--- a/source/_components/rpi_gpio.markdown
+++ b/source/_components/rpi_gpio.markdown
@@ -41,7 +41,7 @@ ports:
   type: map
   keys:
     "port: name":
-      description: The port numbers (BCM mode pin numbers) and corresponding names.
+      description: The port numbers ([BCM mode pin numbers](https://pinout.xyz/resources/raspberry-pi-pinout.png)) and corresponding names.
       required: true
       type: string
 bouncetime: