Microprocessor Systems Engineering Assignment: Using Shift Registers with the Arduino
Lab a:
Procedure:
· Read the section:
o Chapter 12: Building and Testing a Hardware-Debounce Button Interrupt Circuit
· Construct the breadboard circuit and implement the program presented as in Chapter 12 (pp.262-269).
Lab b:
Procedure:
· Read the section:
o Chapter 7: Shifting Serial Data from the Arduino
· Construct the breadboard circuit and implement the program presented as Bar Graph Distance Control in Chapter 7 (pp.147-152).
Lab c:
Procedure:
Applying the principles in Lab 7a and 7b, design the following circuit and code:
· Modify the Bar Graph Distance Control circuit and program to using a photoresistor input instead of an IR distance sensor in Chapter 3 (pp. 56- 59). Modify the program to represent an illumination LED bar graph circuit. In other words, when the photoresistor detects maximum light, all of the eight LEDS light. As you dim the amount to the photoresistor, the LEDS start to turn off from right to left.
· Send your code file (.ino) of the lab completed and operational as well for credit.
Analysis/Discussion:
· Explain what you did in the program to reverse the display of the bar graph, making the bar graph illuminate with the LEDS on and turning off as you dimmed the light.
· The 74HC595 shift register is essential converting 3 inputs to 8 outputs. In your own words, how does this work?
With your answers, please submit your code, a video of your circuit and any computer screenshots during its operation. Please include your Grantham ID number in the video to show your work.