ACtivity 2.3.1
Introduction
What do alarm clocks, cable TV converter boxes, home answering machines, and inexpensive calculators all have in common? In addition to being built from electronics, many also include seven-segment displays as part of their design.
There are two types of seven-segment displays, common cathode and common anode. Understanding how these displays work and the differences between them is fundamental to designing many different types of electronic devices.
In this activity you will learn how to use seven-segment displays to display both alpha and numeric characters.
Conclusion
1. Complete the wiring of the seven-segment displays shown below so that they will display your age. If you are 15, display a (1) on the common cathode display and a (5) on the common anode display.
Common Anode
Common Cathode
2. List five words of three characters or more that you could spell out using a seven-segment display. Don’t forget about lower case characters. Be creative. Be polite.
What do alarm clocks, cable TV converter boxes, home answering machines, and inexpensive calculators all have in common? In addition to being built from electronics, many also include seven-segment displays as part of their design.
There are two types of seven-segment displays, common cathode and common anode. Understanding how these displays work and the differences between them is fundamental to designing many different types of electronic devices.
In this activity you will learn how to use seven-segment displays to display both alpha and numeric characters.
Conclusion
1. Complete the wiring of the seven-segment displays shown below so that they will display your age. If you are 15, display a (1) on the common cathode display and a (5) on the common anode display.
Common Anode
Common Cathode
2. List five words of three characters or more that you could spell out using a seven-segment display. Don’t forget about lower case characters. Be creative. Be polite.
- HEY
- PIE
- CrY
- bYE
- LIE