Is it possible to access the PIC18F8520 I2C and SPI peripherals? I would like to be able to connect I2C based temperature and humidity sensors and SPI based Vector IIX Electronic Compass to my Vex applications. I also want to network multiple Vex controllers for parallel processing. Ideally these I/O pins would be brought out to the back of the Vex Controller.
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No. All interfacing must me made through the Analog/Digital, Interrupt, and Serial Ports. You can talk to other Vex Controllers via the 2 Serial Ports.**