I am trying to wire up a 7 segment LED display but when I connect the common pin to ground and the LED pins to V+ the display doesn't work. However when I use the common pin as an anode and connect it to the positive rail and use a lower voltage for the LED pins then it works, how do I make it work with the common pin as a cathode
7 segment LED display not working when using common pin as cathode
7segmentdisplay
Related Topic
- Electronic – Why can’t resistors be used to connect cathode pins to GND instead of segment pins to VDD with a 7-segment display
- Integrated Circuit – Using 7447 to Drive Common-Cathode 7 Segment Display
- Electrical – 7 Segment Common Cathode LED Digit Display Circuit for Arduino
- Electrical – One digit on seven segment display not working
Best Answer
You don't. Multisegment LEDs with common pins are manufactured in a specific arrangement, and this cannot be changed after fabrication.