Universal input/output device

摘要

This invention relates to a universal device for sequentially sensing any input signals and providing any output signals, comprising; a microprocessor; a programmable memory for defining said input signals and said output signals at selected levels; multiplexers controlled by said microprocessor to sequentially select said input signals and said output signals; electrical components controlled by said microprocessor and programmable memory for generating a digital bit stream for each sequentially selected input signal and output signal; circuitry for translating said digital bit streams to an analogue signal; signal conditioning circuitry activated by said analogue signal for sensing any input signal and providing any output signal defined by said programmable memory.