Using Marlin Firmware with Arduino Mega and Ramps 1.4

marlin_ramps1.4_arduino.txt

Steps to use Marlin Firmware for Ramps 1.4 with Arduino Mega:

1. Download Marlin 1.0.0 firmware which supports Arduino 1.6.8 and above. 
Link: https://github.com/MarlinFirmware/Marlin/archive/1.0.x.zip

Note: Do not go for Marlin 2.0.x as it will throw error during compilation if you are using Arduino IDE.
`Error: avr-gcc: CreateProcess: No such file or directory`

If you are using PlatformIo IDE you can use Marlin 2.0.X to compile

2. Once downloaded extract and open Marlin.io file in Arduino IDE and make changes to Configuration.h file:

	a. Change the TEMP_SENSOR_0 to 0 from -1 
      #define TEMP_SENSOR_0 0 // ---CHANGED TO MAKE THE PRINTER ONLINE OLD VALUE: TEMP_SENSOR_0 -1
      
	b. Change name of the motherboard you are using, in this case RAMPS 1.4, check the list of available motherboards in boards.h file:
      #define MOTHERBOARD BOARD_RAMPS_13_EFB // BOARD_ULTIMAKER
      
	c. Change the baudrate values (optional):
      #define BAUDRATE 115200 // older 250000
      
 3. Compile when all the changes are done.