diff --git a/.gitmodules b/.gitmodules
index c44e139..6ffc194 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -4,3 +4,6 @@
 [submodule "fw/Libs/sht4x"]
 	path = fw/Libs/sht4x
 	url = git@gitlab.com:VelesLabs/stm32libs/sht4x.git
+[submodule "fw/Libs/crc8"]
+	path = fw/Libs/crc8
+	url = git@gitlab.com:VelesLabs/stm32libs/crc8.git
diff --git a/fw/Libs/crc8 b/fw/Libs/crc8
new file mode 160000
index 0000000..5fc3f95
--- /dev/null
+++ b/fw/Libs/crc8
@@ -0,0 +1 @@
+Subproject commit 5fc3f95ee0bc30ab62e9a3fffec06fc5e5fc5f96