diff --git a/modulator-driver.pro b/modulator-driver.pro
index d250257..fd5616f 100644
--- a/modulator-driver.pro
+++ b/modulator-driver.pro
@@ -1,4 +1,4 @@
-update=Fri 12 Feb 2021 04:50:51 PM CET
+update=Fri 12 Feb 2021 04:53:03 PM CET
 version=1
 last_client=kicad
 [general]
diff --git a/shema.pdf b/shema.pdf
new file mode 100644
index 0000000..7f624bd
Binary files /dev/null and b/shema.pdf differ