diff --git a/ATU_100_EXT_board/ATU-100_EXT_PCB.zip b/ATU_100_EXT_board/ATU-100_EXT_PCB.zip new file mode 100644 index 0000000..1f6e541 Binary files /dev/null and b/ATU_100_EXT_board/ATU-100_EXT_PCB.zip differ