RAMPS 1.4 Controller 2560 R3 Control Board A4988 Driver Kit For 3D Printer

 RAMPS 1.4 Controller 2560 R3 Control Board A4988 Driver Kit For 3D Printer
RAMPS 1.4:
Extended to control other accessories.
Fusion 5A additional safety and component protection.
Extra bed heating control fuse 11A.
Suitable 5 Pololu stepper driver board.
Pololu board pin socket, so they can be easily replaced or removed for future designs.
I2C and SPI pins left for future expansion.
All MOSFET PWM pin is hooked into versatility.
Servo connector is used to connect to the end block, the motor and the light emitting diodes.
These connectors are gold-plated, rated current of 3A.
LED indicates when the heater output.
A4988 driver:
Low RDS (ON) outputs
Automatic current decay mode detection / selection
Mixed with slow current decay mode
Synchronous rectification for low power dissipation
Internal UVLO
Crossover current protection
3.3 and 5 V compatible logic supply
Thermal shutdown circuit
Ground short circuit protection
Load short-circuit protection
Step five selectable modes: full, 1/2, 1/4, 1/8 and 1/16
Package included:
1 x RAMPS 1.4 Controller
1 x 2560 R3 Control Board
5 x A4988 Driver
1 x USB cable