diff --git a/courses/free-courses-pl.md b/courses/free-courses-pl.md
index 52050d706..4bd704686 100644
--- a/courses/free-courses-pl.md
+++ b/courses/free-courses-pl.md
@@ -57,6 +57,7 @@
 
 ### Embedded
 
+* [Kurs Arduino, poziom II](https://www.forbot.pl/blog/kurs-arduino-ii-wstep-spis-tresci-id15494) - Damian (Treker) Szymański
 * [Kurs podstaw Arduino](https://www.forbot.pl/blog/kurs-arduino-podstawy-programowania-spis-tresci-kursu-id5290)
 * [Kurs STM32L4](https://www.forbot.pl/blog/kurs-stm32-l4-wstep-spis-tresci-dla-kogo-jest-ten-kurs-id48575)