ArduinoCMRI | Arduino library for connecting your computer to your model

CMRI(unsigned int address = 0, unsigned int input\_bits = 24, unsigned int output\_bits = 48) Creates a new CMRI object. The default values will create a device that matches the capabilities of an SMINI node. If you want to bind to a different node address, or address more or less inputs, you can alter it here. The maximum combined number of addressable inputs and outputs is 2048 (C/MRI limitation). The library will work fine with any number of inputs and outputs, it will simply ignore out-of-range data. void set\_address(unsigned int address) Sets the address of the C/MRI node. char process() Reads in available data from the serial port and acts accordingly: * For POLL requests, it replies with the current state of the input data. * For INIT requests, it does nothing. * For SET/TRANSMIT (T) requests, it updates the output data. Return value is NULL for no valid packet received, or one of CMRI::INIT, CMRI::SET, CMRI::POLL depending on the packet type received. bool process\_char(char c) Similar to the CMRI::process method, but lets you manage the serial data yourself. Use this if you are processing more than 1 CMRI node in a system. Return value is true if a valid packet has been received and processing of it has finished. Otherwise it returns false. void transmit() Transmits the current state of the input data back to the PC. Creates a CMRI::GET packet. bool get\_bit(int n) Reads a bit from of the last valid input data received. Use this to update your signals, points, etc. char get\_byte(int n) Reads an entire byte from the input buffer. Use this with shiftOut and some shift registers to vastly expand your I/O capabilities. bool set\_bit(int n, bool b) Updates the output buffer to the specified value. Data will be transmitted to the PC either when transmit() is called, or when the next POLL packet is received. bool set\_byte(int n, char b) Updates an entire byte of the output buffer. Use this with shiftIn and some shift registers to add many extra digital inputs to your system.