7 Segment Led Display Counter

Intro bill of materials and simple sketch.

7 segment led display counter.

This post part 2. Sketch broken down in sections explained part 4. The circuit for the 2 digit 7 segment display counter part 3. The most common applications are calculators microwave ovens electronic lab equipment like function generators and frequency counters.

Here are links to all parts. 2 digit 7 segment display counter is a multi part post. A 7 segment led display consists of 7 leds arranged in such a way that it can display numbers from 0 to 9. Details of a common cathode type 7 segment led display is shown here.

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. The seven segment display is infact a very simple device. Pin10 or g to pin 8. Seven segment display types working applications.

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. Pin3 or pin8 or cc to ground through 100ω resistor. 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. 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.

7 segment led displays are used in many applications as front panel number indicators. Pin7 or a to pin 2. Added two buttons and modified sketch part 5.