Connect 3 LEDs and Blink Them in Sequence

To carry out the experiment described in this lesson, you will need the following parts.

3	5mm Red LED
1	100Ω Resistor (brown, black, brown)

Connect up your stripboard as shown below, using the 100Ω resistor.

First

Modify the Blink code from Challenge 5.5 to make all three LEDs blink on and off at the same time;

Second

Modify the Blink code from Challenge 5.5 to make the three LEDs turn on in sequence, one after the other, until all three are on, then turn off in sequence, until all three are off;

Third

Make the LEDs count in binary!. Each LED will represent a digit.

• What is the value of the LED-digit when the LED is off? When it is on?
• How many numbers can you represent with the 3 LEDs and how high can you count?
• How many LEDs would you need to count to 100?

cd ~/scholar-work-open
git branch
git checkout your-branch-name
git add *
git commit -a -m 'Hackshop Challenge 5.6'
git push origin your-branch-name