Interface circuit between a microcontroller and a two-wire line to an acute voltage detector in the receiver stage

摘要

it is described a circuit of interface between an electrical (ps) and a line (l) for data communication in serial form which includes a microcontroller (mc) and means circuitali of ricezionand (crp) and the transmission (tr) capable of coupling to the line (l), respectively, and terminals of input data (rx) and output data (tx) of the microcontroller.in order to use a microcontroller (mc) devoid of the function of "interrupts", the circuit includes a peak detector (d3, c6) in the state of reception (crp).