diff --git a/.gitmodules b/.gitmodules
index 6ffc194..3292498 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -7,3 +7,6 @@
 [submodule "fw/Libs/crc8"]
 	path = fw/Libs/crc8
 	url = git@gitlab.com:VelesLabs/stm32libs/crc8.git
+[submodule "fw/Libs/sgp40"]
+	path = fw/Libs/sgp40
+	url = git@gitlab.com:VelesLabs/stm32libs/sgp40.git
diff --git a/fw/Libs/sgp40 b/fw/Libs/sgp40
new file mode 160000
index 0000000..a0ed612
--- /dev/null
+++ b/fw/Libs/sgp40
@@ -0,0 +1 @@
+Subproject commit a0ed61200d27028b93251ef5f8d4d04f96860c4f