All the things you need to simply control a shift register from your Arduino-compatible microcontroller.
Simply move the folder containing this README file (which should have the rest
of the program files with it) to the libraries folder in your sketchbook
location. If you don't know where this folder is, open your Arduino IDE, and
look for the sketchbook location under File > Preferences.
This library provides a class for dealing with each shift register called
ShiftRegister. You can test it with an Arduino sketch like so:
#include <ShiftRegister.h>
ShiftRegister sr(2, 3, 4, 5, 6, 7);
StateBasedRegister<1> sbr(sr);
void setup() {
sr.clear();
Serial.begin(9600);
sr.pushByte(42);
sr.show();
Serial.println("You should see 00101010 on the outputs.");
delay(5000);
uint8_t read = sr.readByte(true); // true to keep values unchanged
sr.show();
Serial.println("The outputs should be unchanged.");
delay(5000);
Serial.print("Should be 42: ");
Serial.println(read);
Serial.println("Outputs will flash...");
for (byte i = 0; i < 5; ++i) {
delay(500);
sr.setOutputEnabled(false);
delay(500);
sr.setOutputEnabled(true);
}
sr.clear();
read = sr.readByte(true);
Serial.print("Should be 0: ");
Serial.println(read);
sbr.clear();
Serial.println("The outputs should all be LOW.");
delay(5000);
sbr.write(3, true);
Serial.println("You should see 00100000 on the outputs.");
delay(5000);
}
void loop() {
}This test program assumes your controller has serial output and that your shift register has only 8 bits.
Example circuit:
This library uses the GNU coding style for C++ with the exception of using Arduino-style naming conventions for variables and functions so that the final sketch will look consistent with the Arduino standard library.
This library is libre software: you are free to use, copy, modify, and redistribute it under the terms of the GNU Affero General Public License, version 3 only. See COPYING for details.