diff --git a/hardware/sam/variants/Arduino_Due/pins_arduino.h b/hardware/sam/variants/Arduino_Due/pins_arduino.h
new file mode 100644
index 000000000..e69de29bb
diff --git a/hardware/sam/variants/Arduino_Due/variant.cpp b/hardware/sam/variants/Arduino_Due/variant.cpp
new file mode 100644
index 000000000..e69de29bb
diff --git a/hardware/sam/variants/Arduino_Due/variant.h b/hardware/sam/variants/Arduino_Due/variant.h
new file mode 100644
index 000000000..e69de29bb
diff --git a/hardware/sam/variants/sam3u_ek/pins_arduino.h b/hardware/sam/variants/sam3u_ek/pins_arduino.h
new file mode 100644
index 000000000..e69de29bb
diff --git a/hardware/sam/variants/sam3u_ek/variant.cpp b/hardware/sam/variants/sam3u_ek/variant.cpp
new file mode 100644
index 000000000..e69de29bb
diff --git a/hardware/sam/variants/sam3u_ek/variant.h b/hardware/sam/variants/sam3u_ek/variant.h
new file mode 100644
index 000000000..e69de29bb