Geekcreit LCD 12864 RAMPS 1.4 Board 2560 R3 Control Board A4988 Driver Kit For 3D Printer

Power design of Mega 2560 R3 board Mega power supply system has two options USB direct power supply or an external power supply Select the power supply will automatically switch Optional external power supply AC to DC adapter or battery this limits the control board voltage range 6V 12V but if the voltage supplied is less than 6V I O ports may not provide the 5V voltage so there will be no stable if the supplied voltage is greater than 12V the regulator will have the device may overheat protection are more likely to damage theMEGA Therefore the operation of the proposed power supply 6 5 12V 7 5V or recommended power supply is 9V LCD12864 Feature Single buy click here Large screen 12864LCDIntegration SD card in the back after slicing the file into the SD card you can select the corresponding files on the LCD The board has encoder can be achieved parameter adjustment and the file selection print The ramps can be Plug and Play but it need to modify the firmware to support A4988 driver Low RDS ON outputsAutomatic current decay mode detection selectionMixed with slow current decay modeSynchronous rectification for low power dissipationInternal UVLOCrossover current protection3 3 and 5V compatible logic supplyThermal shutdown circuitGround short circuit protectionLoad short circuit protectionFive selectable stepper modes full 1 2 1 4 1 8 and 1 16Package included 1 x 12864 LCD board1 x RAMPS 1 4 control board1 x Mega 2560 R3 control board5 x A4988