Are you a Java developer looking to add advanced hardware I/O capabilities to your Android or PC application? Well then the IOIO-OTG is for you! The IOIO-OTG (pronounced “yo-yo-O-T-G”) is a development board specially designed to do just that. It features a PIC microcontroller which acts like a bridge that connects an app on your PC or Android device to low-level peripherals like GPIO, PWM, ADC, I2C, SPI, and UART. An app-level library helps you write control code for these low level peripherals in the same way you'd write any other Java app!
The RoBoard NCBox-189 is a complete
x86 PC, specially designed for CNC machine control.
It comes with 2 parallel ports for easy connection and control of your stepper driver
(POrt 1 is an DB26 connect in the back; port 2 is available in the front