diff --git a/source/_integrations/piglow.markdown b/source/_integrations/piglow.markdown
index aea4e938134..79c53b84a23 100644
--- a/source/_integrations/piglow.markdown
+++ b/source/_integrations/piglow.markdown
@@ -10,6 +10,14 @@ ha_platforms:
   - light
 ---
 
+<div class='note warning'>
+
+This integration is deprecated and will be removed in Home Assistant Core 2022.4.
+
+For more information see: [Architectural Decision Record 0019](https://github.com/home-assistant/architecture/blob/master/adr/0019-GPIO.md).
+
+</div>
+
 The `piglow` platform lets you control the [Piglow](https://shop.pimoroni.com/products/piglow) lights on your Raspberry Pi from within Home Assistant.
 
 ## Configuration