1. Mega Shield
2. Plug in all motors with simple 4-way JST connectors.
3. Made for UltiStepper Driver. Compatible with Pololu stepper driver boards.
4. Controls up to 5 stepper motors (3 for the X, Y and Z axis one for an extruder (the “E axis”), optionally you can add another axis by adding a Pololu stepper driver.
5. Configurable step sizes by placing jumpers
6. 3x 55 Amp MOSFETs outputs (with LED indicators. Actual current capability limited by PCB and connectors)
7. All pins are broken out for maximum extensibility
8. Runs from 15V to 19V.
9. Three thermocouple inputs, or thermistor inputs. The 100K thermistor is recommended.
10. Has a IDC header for adding an LCD panel (movie here)
11. Has a header for adding an SD card module.
12. A toggle-switch for powering up/down the board
13. Easier to wire up thermocouples

14.Includes a 12V regulator for an (always on) fan to cool the electronics.

15. A PWM output with power for LED arrays and other lighting

16.LCD backlight dimming can now be software controlled

17. A serial I/O header for bluetooth and ethernet add-ons.