diff --git a/.gitignore b/.gitignore
index 3413b43..f03d996 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,3 +9,4 @@ __pycache__
 *.png
 *.jpg
 *.wav
+*.pdf
diff --git a/CAD/DigiCase/Digi Case Base.FCStd b/CAD/DigiCase/Digi Case Base.FCStd
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diff --git a/CAD/DigiCase/Digi Case Lid.FCStd b/CAD/DigiCase/Digi Case Lid.FCStd
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index 0000000..fc730e9
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diff --git a/CAD/Frame.FCStd b/CAD/Frame.FCStd
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index 0000000..576e447
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diff --git a/CAD/MastCam/MastCamMount.FCStd b/CAD/MastCam/MastCamMount.FCStd
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index 0000000..0961511
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diff --git a/CAD/MastCam/MastCamRear.FCStd b/CAD/MastCam/MastCamRear.FCStd
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diff --git a/CAD/MastCam/Window Wiper.FCStd b/CAD/MastCam/Window Wiper.FCStd
new file mode 100644
index 0000000..224c7dc
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diff --git a/crawler_software/arduino/crawler_slave/Makefile b/crawler_software/arduino/crawler_slave/Makefile
new file mode 100644
index 0000000..22492e9
--- /dev/null
+++ b/crawler_software/arduino/crawler_slave/Makefile
@@ -0,0 +1,70 @@
+### DISCLAIMER
+### This is an example Makefile and it MUST be configured to suit your needs.
+### For detailed explanations about all the available options,
+### please refer to https://github.com/sudar/Arduino-Makefile/blob/master/arduino-mk-vars.md
+
+### PROJECT_DIR
+### This is the path to where you have created/cloned your project
+PROJECT_DIR       = $(shell dirname $(shell pwd))
+
+### ARDMK_DIR
+### Path to the Arduino-Makefile directory.
+ARDMK_DIR         = $(PROJECT_DIR)/Arduino-Makefile
+
+### ARDUINO_DIR
+### Path to the Arduino application and resources directory.
+ARDUINO_DIR       = /usr/share/arduino
+
+### USER_LIB_PATH
+### Path to where the your project's libraries are stored.
+USER_LIB_PATH     :=  $(realpath $(PROJECT_DIR)/lib)
+
+### BOARD_TAG & BOARD_SUB
+### For Arduino IDE 1.0.x
+### Only BOARD_TAG is needed. It must be set to the board you are currently using. (i.e uno, mega2560, etc.)
+# BOARD_TAG         = mega2560
+### For Arduino IDE 1.6.x
+### Both BOARD_TAG and BOARD_SUB are needed. They must be set to the board you are currently using. (i.e BOARD_TAG = uno, mega, etc. & BOARD_SUB = atmega2560, etc.)
+### Note: for the Arduino Uno, only BOARD_TAG is mandatory and BOARD_SUB can be equal to anything
+BOARD_TAG         = mega
+BOARD_SUB         = atmega2560
+
+### MONITOR_PORT
+### The port your board is connected to. Using an '*' tries all the ports and finds the right one. Choose one of the two.
+MONITOR_PORT      = /dev/ttyUSB*
+# MONITOR_PORT      = /dev/ttyACM*
+
+### MONITOR_BAUDRATE
+### It must be set to Serial baudrate value you are using.
+MONITOR_BAUDRATE  = 115200
+
+### AVR_TOOLS_DIR
+### Path to the AVR tools directory such as avr-gcc, avr-g++, etc.
+AVR_TOOLS_DIR     = /usr
+
+### AVRDUDE
+### Path to avrdude directory.
+AVRDUDE           = /usr/bin/avrdude
+
+### CFLAGS_STD
+CFLAGS_STD        = -std=gnu11
+
+### CXXFLAGS_STD
+### You can choose wich ever you like
+# CXXFLAGS_STD      = -std=gnu++11
+CXXFLAGS_STD      = -std=gnu++17
+
+
+### CPPFLAGS
+### Flags you might want to set for debugging purpose. Comment to stop.
+CXXFLAGS         += -pedantic -Wall -Wextra
+LDFLAGS          += -fdiagnostics-color
+
+### OBJDIR
+### Don't touch this!
+### This is were you put the binaries you just compile using 'make'
+CURRENT_DIR       = $(shell basename $(CURDIR))
+OBJDIR            = $(PROJECT_DIR)/build/$(CURRENT_DIR)/$(BOARD_TAG)
+
+### path to Arduino.mk, inside the ARDMK_DIR, don't touch.
+include $(ARDMK_DIR)/Arduino.mk