diff --git a/README.md b/README.md
index 8fd8202..b1382d9 100644
--- a/README.md
+++ b/README.md
@@ -13,3 +13,5 @@ BOM:
 
 I have used BME280 as internal temp sensor, some DS18B20 as heater sensors.
 
+-----------------------------------
+Based on https://github.com/SasaKaranovic/DIY-Filament-Dryer