7 Segment Led Display Counter

Details of a common cathode type 7 segment led display is shown here.

7 segment led display counter.

This post part 2. Intro bill of materials and simple sketch. Pin9 or f to pin 7. The seven segment display is infact a very simple device.

In our daily life we come across many displays like television smartphones computers traffic lights time counters digital watches washing machine etc we have different types of displays according to the use. Now to understand the working consider a seven segment display is connected to a port so say we have connected a segment of display to pin0 b segment of display to pin1 a segment of display to pin3 a segment of display to pin4 a segment of display. A seven segment display is a form of electronic display device for displaying decimal numerals that is an alternative to the more complex dot matrix displays. Pin3 or pin8 or cc to ground through 100ω resistor.

A typical 7 segment led display component with decimal point in a wide dip 10 package. Sketch broken down in sections explained part 4. Here are links to all parts. 7 segment led displays are used in many applications as front panel number indicators.

Pin10 or g to pin 8. The circuit for the 2 digit 7 segment display counter part 3. Code for buttons explained. Pin7 or a to pin 2.

It is a combination of 8 leds the decimal point dp is the 8th which can be arranged so that different combinations can be used to make numerical digits. Added two buttons and modified sketch part 5. 2 digit 7 segment display counter is a multi part post.