diff --git a/CAD/ESP32 Pins.xlsx b/CAD/ESP32 Pins.xlsx
new file mode 100644
index 0000000..65146f6
Binary files /dev/null and b/CAD/ESP32 Pins.xlsx differ
diff --git a/CAD/datasheet/X27-steps.jpg b/CAD/datasheet/X27-steps.jpg
new file mode 100644
index 0000000..2153532
Binary files /dev/null and b/CAD/datasheet/X27-steps.jpg differ