4 Digit Common Cathode 0.5″ – 7 Segment Display Module (Multiplexed)
This 4 Digit 7 segment display project contains 4 x Common Cathode displays, current limiting resistors or each LED segment, 4 x PNP transistors on each common cathode for multiplexing, etc. This is a very compact project that works with 5V TTL signals but can be optimized for 3.3V operations by reducing current limiting resistors values.
This 4 Digit 7 segment display project contains 4 x Common Cathode displays, current limiting resistors or each LED segment, 4 x PNP transistors on each common cathode for multiplexing, etc. This is a very compact project that works with 5V TTL signals but can be optimized for 3.3V operations by reducing current limiting resistors values. A header connector is provided for easy interface to Arduino or other microcontrollers. All inputs are compatible with TTL 5V signals.
Multiplexed display
https://en.wikipedia.org/wiki/Multiplexed_display
- PIN 1 NC (VCC-NO USE)
- PIN 2 SEGMENT A
- PIN 3 SEGMENT B
- PIN 4 SEGMENT C
- PIN 5 SEMENT D
- PIN 6 SEGMENT E
- PIN 7 SEGMENT F
- PIN 8 SEGMENT G
- PIN 9 DP
- PIN 10 DISPLAY 1 CATHODE (BC847 BASE)
- PIN 11 DISPLAY 2 CATHODE (BC847 BASE)
- PIN 12 DISPLAY 3 CATHODE (BC847 BASE)
- PIN 13 DISPLAY 4 CATHODE (BC847 BASE)
- PIN 14 GND
Features
- 7-segment CC displays
- Multiplexed
- 5V TTL input
- PCB dimensions: 51.28 x 17.78 mm
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This 4 Digit 7 segment display project contains 4 x Common Cathode displays, current limiting resistors or each LED segment, 4 x PNP transistors on each common cathode for multiplexing, etc. This is a very compact project that works with 5V TTL signals but can be optimized for 3.3V operations by reducing current limiting resistors values.
This 4 Digit 7 segment display project contains 4 x Common Cathode displays, current limiting resistors or each LED segment, 4 x PNP transistors on each common cathode for multiplexing, etc. This is a very compact project that works with 5V TTL signals but can be optimized for 3.3V operations by reducing current limiting resistors values. A header connector is provided for easy interface to Arduino or other microcontrollers. All inputs are compatible with TTL 5V signals.
Multiplexed display
https://en.wikipedia.org/wiki/Multiplexed_display
- PIN 1 NC (VCC-NO USE)
- PIN 2 SEGMENT A
- PIN 3 SEGMENT B
- PIN 4 SEGMENT C
- PIN 5 SEMENT D
- PIN 6 SEGMENT E
- PIN 7 SEGMENT F
- PIN 8 SEGMENT G
- PIN 9 DP
- PIN 10 DISPLAY 1 CATHODE (BC847 BASE)
- PIN 11 DISPLAY 2 CATHODE (BC847 BASE)
- PIN 12 DISPLAY 3 CATHODE (BC847 BASE)
- PIN 13 DISPLAY 4 CATHODE (BC847 BASE)
- PIN 14 GND
Features
- 7-segment CC displays
- Multiplexed
- 5V TTL input
- PCB dimensions: 51.28 x 17.78 mm
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