diff --git a/hardware/BOM_stmdsp-addon_2023-04-22.csv b/hardware/BOM_stmdsp-addon_2023-04-22.csv new file mode 100644 index 0000000..9b4125e Binary files /dev/null and b/hardware/BOM_stmdsp-addon_2023-04-22.csv differ diff --git a/doc/addon_rev1_board.pdf b/hardware/addon_rev1_board.pdf similarity index 100% rename from doc/addon_rev1_board.pdf rename to hardware/addon_rev1_board.pdf diff --git a/doc/addon_rev1_schematic.pdf b/hardware/addon_rev1_schematic.pdf similarity index 100% rename from doc/addon_rev1_schematic.pdf rename to hardware/addon_rev1_schematic.pdf diff --git a/doc/addon_rev2_board.pdf b/hardware/addon_rev2_board.pdf similarity index 100% rename from doc/addon_rev2_board.pdf rename to hardware/addon_rev2_board.pdf diff --git a/doc/addon_rev2_schematic.pdf b/hardware/addon_rev2_schematic.pdf similarity index 100% rename from doc/addon_rev2_schematic.pdf rename to hardware/addon_rev2_schematic.pdf