Uploaded November 2023 | Updated September 2026, 2 weeks ago
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Part 2 Video: youtu.be/sE3LSYoCqLQ
LED ring light: https://s.click.aliexpress.com/e/_DmvHFpp
Source files: github.com/upiir/potentiometer_led_ring_light
WOKWI sketch multiplexing: wokwi.com/projects/381014443625021441
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Learn how to control the LED ring light that should be placed around the Rotary Encoder or Potentiometer, and has 32 small yellow LEDs - 31 tickmarks and one dot. Since Arduino UNO only has 14 digital pins, we need to use multiplexing to controll all 32 LEDs. Those LEDs are connected as 4 groups with common cathodes, so we will use 8+4=12 wires, and 12 digital pins on Arduino UNO.
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Links from the video:
LED ring light: https://s.click.aliexpress.com/e/_DmvHFpp
Arduino UNO: https://s.click.aliexpress.com/e/_AXDw1h
Arduino prototyping shield: https://s.click.aliexpress.com/e/_ApbCwx
Breadboard wires: https://s.click.aliexpress.com/e/_Dkbngin
Related videos with Arduino UNO:
youtube.com/playlist?list=PLjQRaMdk7pBYxYPnrTDMMX0i_KGozc-HA
------------------------------------------------------
Do you have any questions? Suggestions for the next video? Please put those down in the comment section. I try to answer as many questions as I can. Thank you for watching, reading the video description and I hope to see you next time. Good luck with your projects!
------------------------------------------------------
#arduino #diy #LED
------------------------------------------------------
Do you like video? Please consider buying me coffee, thanks! buymeacoffee.com/upir
Part 2 Video: youtu.be/sE3LSYoCqLQ
LED ring light: https://s.click.aliexpress.com/e/_DmvHFpp
Source files: github.com/upiir/potentiometer_led_ring_light
WOKWI sketch multiplexing: wokwi.com/projects/381014443625021441
------------------------------------------------------
Learn how to control the LED ring light that should be placed around the Rotary Encoder or Potentiometer, and has 32 small yellow LEDs - 31 tickmarks and one dot. Since Arduino UNO only has 14 digital pins, we need to use multiplexing to controll all 32 LEDs. Those LEDs are connected as 4 groups with common cathodes, so we will use 8+4=12 wires, and 12 digital pins on Arduino UNO.
------------------------------------------------------
Links from the video:
LED ring light: https://s.click.aliexpress.com/e/_DmvHFpp
Arduino UNO: https://s.click.aliexpress.com/e/_AXDw1h
Arduino prototyping shield: https://s.click.aliexpress.com/e/_ApbCwx
Breadboard wires: https://s.click.aliexpress.com/e/_Dkbngin
Related videos with Arduino UNO:
youtube.com/playlist?list=PLjQRaMdk7pBYxYPnrTDMMX0i_KGozc-HA
------------------------------------------------------
Do you have any questions? Suggestions for the next video? Please put those down in the comment section. I try to answer as many questions as I can. Thank you for watching, reading the video description and I hope to see you next time. Good luck with your projects!
------------------------------------------------------
#arduino #diy #LED
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