1GHz Cortex A8 board on Indiegogo

[mike4u37]

Not bad spec. for the price.



https://www.kickstarter.com/projects...printer-faster



Technical Specs:
Microcontroller

• Texas Instrument Sitara AM335x, 1GHZ Cortex-A8 ARM
• 2 Programmable Realtime Units (PRU) to generate really high frequency step and dir signals
• 4GB eMMC
• 512M DDR3 memory
• 10/100M ethernet
• microSD card
• USB Host to connect USB disk, WiFi, Camera .etc
• USB Device interface, shows to the computer as a mass storage device

Stepper drivers

• 5 to 6 DRV8825 stepper drivers
• 1/32 microsteps / step
• Each capable of driving bipolar steppers up to 45V and 2.5A
• Digital control of the current setting for each driver

Outputs

• 3 heaters, 2 for extruder and 1 for HBP
• 6 connectors for fan or LED light belt, all adjustable

Inputs

• 3 Thermistor (ADC) inputs
• 2 Thermalcouple (MAX6675) inputs
• 6 endstops
• 1 connector for external power button

Extensibility

• 50 pins FFC connector for 24 bits TFT LCD and touch screen
• connector for 2 extended steppers
• connector for 3 extended heaters
• Serial connector to print debug log
• Lots of pins broken out, including step, direction and enable pins for the stepper drivers

BBP 1S
We also offer a special version: BBP 1S, which allows you to print more materials and support dual Z-axis printers.
It adds more powerful features，including a user defined stepper driver to support dual Z axis type 3D printer, 2 thermalcouples interface which allow you to print high temperature materials, 2 extended interface for steppers and heaters so you can add more extruders in your printer for color printing.

[bolsoncerrado]

Duplicated!
http://www.print3dforum.com/showthre...ng-every-other!