Week 7 - Shift Registers and Multiplexing

Lab

Please follow this tutorial online and build both examples:

https://learn.adafruit.com/adafruit-arduino-lesson-4-eight-leds/overview Submit a short video to your blog as always.

Additionally, here's a Sparkfun video that explains how shift registers work:

Bitmasks, Bitwise Operators and Bit Shifting We looked at how to bit shift and what bit masks are.

Please read the explanation here: https://en.wikipedia.org/wiki/Bitwise_operation

To see how this work in arduino, review the section on Bitwise Operators here: https://www.arduino.cc/reference/en/#structure

When will you ever use this? It's really great for sending data over radio or BLE where you have a very limited amount of data. More on this soon.

content from the slides

Arduino's tutorial: https://www.arduino.cc/en/tutorial/ShiftOut An addition resource as a lab if you want more detail www.cs.uregina.ca/Links/class-info/207/Lab8/

These tutorials are very useful for me, if I have more time , I will learn more deeply.

Now , this is my experiment.

Carelessness led to interface connection errors, which was checked for a long time.

Succeeded！

Chaining

http://bildr.org/2011/02/74hc595/

This is more suitable for some interesting big projects, maybe I will use it in the future.