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7 Segment Led Display (Common Cathode)
7 Segment Led Display (Common Cathode), is a form of an electronic display device for displaying decimal numerals that is an alternative to the more complex dot matrix displays.
In a common cathode display, all of the LED segment cathode connections are connected to logic "0" or ground. Individual segments are illuminated by applying a "HIGH" or logic "1" signal to the individual Anode terminals via a current limiting resistor (a-g).
Read more: Implementation of 7 segment LED display Controller on FPGA
Seven-segment displays or ( 7 segment displays) are widely used in digital clocks, electronic meters, basic calculators, and other electronic devices that display numerical information. If you want to use a 7 Segment Led Display in your Arduino project, then you will need a few components like breadboard , jumper wires , resistors , capacitors and transistors.
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Common Cathode Configuration
Common Cathode 7 Segment Display Truth Table
In a common cathode 7 segment display, all the cathodes of the LEDs are linked together. Each LED is accompanied by a current-limiting resistor connected between it and the +VCC. In this configuration, to activate a specific LED, it is connected to +5V. Thus, by connecting inputs a to g to VCC, digits ranging from 0 to 9 can be displayed. For instance, to display the digit 3, LEDs a, b, c, d, and g will emit light, while the remaining LEDs will remain inactive. Consequently, the illuminated LEDs will take the form of the digit 3.
Common Cathode 7 Segment Display Pinout:
Features:
- Pin Type: DIP (Dual In-line Package)
- Common Cathode Configuration
- High Light Intensity Output for optimal viewing
- Simple and easy interface with microcontrollers
Applications:
- Digital Clocks: Used to display time in a clear and easily readable format.
- Electronic Meters: Applied in various measuring instruments for numerical data display.
- Basic Calculators: Utilized for showcasing numerical calculations and results.
- Counters and Timers: Applied in devices that count or time events, such as countdown timers.
- Temperature Displays: Utilized in temperature monitoring systems for numeric temperature readouts.
- Numeric Displays: Suitable for any application requiring the display of numeric information.
- DIY Electronics Projects: Used by hobbyists and DIY enthusiasts in various electronic projects.
- Price Displays: Employed in retail settings for displaying product prices.
- Scoreboards: Used in sports and games to display scores and relevant information.
- Process Control Systems: Integrated into systems for displaying numeric process parameters.
How to Check 7-Segment Display is Common Anode or Cathode
Package Includes:
- 4 x 7 Segment Led Display (Common Cathode)
7 Segment LED Display Specifications
| Device type | Seven Segment Display |
| Display type | LED Display |
| Pin number | 10 |
| Pin type | DIP |
| Dimension | 19mm x 12mm x 7mm |
| Weight | 5 grams |
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All products include a minimum 15-day warranty against manufacturing defects, unless otherwise specified on the product page.
Warranty does not cover misuse, soldering damage, modifications, physical damage, or incorrect electrical connections.
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