Week 6. Segment 2: Object Oriented Programming in Arduino Sketches

In this segment we will become more familiar with Object Oriented (OO) Programming, and we will explore 7-segment LED displays. You should have watched the object oriented programming tutorial in the first segment of week 6.

Goals:

• Understand  7 segment LED displays
• Write a class for controlling a 4-digit 7-segment LED display
  
• Learn 'strobing' such a display for using all 4 digits
• Learn to use arrays in C++

In-Class Project (and probably homework):

• The 'methods' of this class should be:
• void SevenSegmentLED:: SevenSegmentLED(int A, int B....int G, (int DP), int CC1...int CC4). This is the ‘constructor’, which defines the pins that are used to connect the display
• void SevenSegmentLED::setValue(int number) (this is supposed to set the counter to a specific number 
• int SevenSegmentLED::getValue() (this is supposed to return the current value of the counter)
• void SevenSegmentLED::turnDisplayOn(int ontime) (this is supposed to strobe the display digits once; ontime is the duration per digit in microseconds).
• void SevenSegmentLED::countUP(); this is supposed to increase the counter by +1.
• void SevenSegmentLED::countDOWN() (this is supposed to decrease the counter by -1.
• Experiment with the class and the circuit.  Add buttons to use the .setValue() .countDOWN .countUP and . turnDisplayOff() methods.

Materials for this segment:

• Watch the video on the right.
  
• Arduino Sketch featured in the tutorial (click on link below the video).

tutorialw6s2_7segmentdisplay4digits.zip
File Size:	2 kb
File Type:	zip

Download File

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