diff --git a/course/11-GPIOs.pdf b/course/11-GPIOs.pdf
index fbd2639a083f178bee020af8644dad1a6c27f151..ce1a593cfec6e4b77ff3ab9b51d04bc7c6f3eb89 100644
Binary files a/course/11-GPIOs.pdf and b/course/11-GPIOs.pdf differ