ShiftyReg Class

This is a C++ class called ShiftyReg that provides an interface for controlling shift registers. The shift register is used to expand the number of digital output pins on a microcontroller. This library is designed to work with the popular 74HC595 shift register.

Constructor

The constructor takes the following parameters:

ShiftyReg(
    uint8_t DataPin = 2, 
    uint8_t ClockPin = 3, 
    uint8_t LatchPin = 4, 
    uint8_t OutPutEnablePin = NOT_DEFINED_PIN, 
    uint8_t ClearRegPin = NOT_DEFINED_PIN,
    uint8_t NShiftReg = DFLT_N_SHIFT_REG
);

DataPin - the pin number to which the shift register's serial data input pin is connected (default: 2) ClockPin - the pin number to which the shift register's clock input pin is connected (default: 3) LatchPin - the pin number to which the shift register's latch input pin is connected (default: 4) OutPutEnablePin - the pin number to which the shift register's output enable pin is connected (default: NOT_DEFINED_PIN) ClearRegPin - the pin number to which the shift register's clear pin is connected (default: NOT_DEFINED_PIN) NShiftReg - the number of shift registers in the chain (default: DFLT_N_SHIFT_REG)

Public Methods

begin

void begin();

This method initializes the shift registers and sets the pins as outputs.

clear

bool clear();

This method clears all the shift register's outputs.

setExit

bool setExit(uint8_t ExitNumber, uint8_t Value);

This method sets a specific output of the shift register to the specified value.

ExitNumber - the output number to set Value - the value to set the output to (0 or 1)

getExit

uint8_t getExit(uint8_t ExitNumber);

This method returns the value of a specific output of the shift register.

ExitNumber - the output number to get

toggleExit

bool toggleExit(uint8_t ExitNumber);

This method toggles the value of a specific output of the shift register.

ExitNumber - the output number to toggle

setGroupOfExits

bool setGroupOfExits(uint8_t *Exits, uint8_t NExits, uint8_t Value);

This method sets the values of a group of outputs of the shift register to the specified value.

Exits - an array of output numbers to set NExits - the number of outputs in the array Value - the value to set the outputs to (0 or 1)

noOutput

void noOutput();

This method disables the shift register's output.

noOutput(uint16_t AmountOfTime)

void noOutput(uint16_t AmountOfTime);

This method disables the shift register's output for a specified amount of time (in milliseconds).

AmountOfTime - the amount of time to disable the output (in milliseconds)