GNet Solutions » Hardware Hacking » Arduino

• Table of contents
• Install Bootloader
  • Setup Environment
  • Install Sanguino:
  • Flash ArduinoISP
  • Flash Bootloader
• Install Marlin Firmware
• Resources

This is a guide in setting up an Arduino Uno on Arch Linux to flash the Marlin 3D printer firmware on an Ender 3.

Install Bootloader¶

Setup Environment¶

• Open the Arduino IDE on your computer.
• Go to File -> Examples -> ArduinoISP and select Arduino ISP and open it up.
• Go to Tools -> Manage libraries and install the U8glib Library.

Install Sanguino:¶

• Go to File -> Preferences
• In the Additional Boards Manager URLs field, add https://raw.githubusercontent.com/Lauszus/Sanguino/master/package_lauszus_sanguino_index.json
• Click the OK button.
• Go to Tools -> Board -> Boards Manager
• Click Install on Sanguino by Kristian Sloth Lauszus

Flash ArduinoISP¶

• Plug in Arduino Uno
• Go to Tools -> Board -> AVR Boards and select Arduino Uno as the board
• Go to Tools -> Board -> Port and select /dev/ttyACM0 (or appropriate port)
• Click Upload

Flash Bootloader¶

Ender	Arduino
MISO	Pin 12
5V	5V
SCK	Pin 13
MOSI	Pin 11
RESET	Pin 10
GND	GND

• Change directory to the following path:
  

  cd ~/.arduino15/packages/Sanguino/hardware/avr/1.0.3/bootloaders/optiboot
  

• Edit the Makefile.isp file:
  

  nano Makefile.isp
  

  • And modify the following lines, adding the -F flag:
    

    #  Set fuses and unlock memory
    ISPFUSES    = $(AVRDUDE_ROOT)avrdude $(AVRDUDE_CONF) -c $(ISPTOOL) -F \
                  -p $(MCU_TARGET) -P $(ISPPORT) $(ISPSPEED) \
                  -e -u -U lock:w:0x3f:m $(EFUSE_CMD) \
                  -U hfuse:w:0x$(HFUSE):m -U lfuse:w:0x$(LFUSE):m
    # program flash and lock memory.
    ISPFLASH    = $(AVRDUDE_ROOT)avrdude $(AVRDUDE_CONF) -c $(ISPTOOL) -F \
                  -p $(MCU_TARGET) -P $(ISPPORT) $(ISPSPEED) \
                  -U flash:w:$(PROGRAM)_$(TARGET).hex -U lock:w:0x2f:m
    

• Flash the 16MHz ATmega1284 bootloader:
  

  make atmega1284p_isp ISPPORT=/dev/ttyACM0
  

WARNING: The following method is obsolete and flashing the bootloader must be done manually.

• Select Sanguino board from Tools -> Board -> Sanguino-avr.
• Open the Ender 3’s control box and connect it to the Arduino as follows:
  NOTE: If a blue light flashes on the Creality board then it is wired correctly
• Click Burn Bootloader from the Tools menu; success will show ‘Output bootloader burned successfully’.
• Disconnect the wires and reassemble the Ender 3.
• Unplug the Arduino from the computer.

---

Install Marlin Firmware¶

• Download and extract the latest version of Marlin firmware:
  

  mkdir marlin && cd marlin
  wget https://github.com/MarlinFirmware/Marlin/archive/2.0.x.zip
  unzip 2.0.x.zip
  

• Download and extract the example configurations folder:
  

  wget https://github.com/MarlinFirmware/Configurations/archive/release-2.0.7.2.zip
  unzip release-2.0.7.2.zip
  

• Copy the Ender 3 example configurations to the Marlin folder:
  

  cp Configurations-release-2.0.7.2/config/examples/Creality/Ender-3/CrealityV1/* Marlin-2.0.x/
  

• In the Arduino IDE go to File -> Open and navigate to marlin/Marlin-2.0.x/Marlin and open marlin.ino.
• Select the Configuration.h file and modify the following lines accordingly:
  

  #ifndef MOTHERBOARD
   #define MOTHERBOARD BOARD_MELZI_CREALITY
  #endif
  
  #define TEMP_SENSOR_0 1
  #define TEMP_SENSOR_BED 1
  
  #define DEFAULT_Kp  20.84
  #define DEFAULT_Ki   1.96
  #define DEFAULT_Kd 55.47
  
  #define DEFAULT_AXIS_STEPS_PER_UNIT   { 80, 80, 400, 93 }
  #define DEFAULT_MAX_FEEDRATE          { 500, 500, 5, 25 }
  
  #define DEFAULT_ZJERK  0.4
  
  #define INVERT_X_DIR true
  #define INVERT_Y_DIR true
  #define INVERT_Z_DIR false
  
  #define EEPROM_SETTINGS
  
  #if ENABLED(EEPROM_SETTINGS)
  #define EEPROM_AUTO_INIT 
  #endif
  
  #define CR10_STOCKDISPLAY
  

• Select Sanguino from Tools -> Board -> Sanguino-avr.
• Select ATmega1284 or ATmega1284P (16MHz) from Tools -> Processor.
• Select /dev/ttyUSB0 from Tools -> Port.
• Click the Upload button.
• Unplug the printer from the computer and plug it into the power socket. Be aware the printer may take longer to boot up than usual.

Resources¶

• https://marlinfw.org/docs/basics/install_arduino.html
• https://github.com/MarlinFirmware/Marlin
• https://github.com/Lauszus/sanguino/
• https://all3dp.com/2/ender-3-with-marlin-how-to-install-marlin-firmware-on-your-ender-3/
• https://forum.arduino.cc/index.php?topic=625108.0
• https://forum.arduino.cc/index.php?topic=621502.0