PCBWay - https://www.pcbway.com/setinvite.aspx...
LED ring light: https://s.click.aliexpress.com/e/_Dmv...
Source files: https://github.com/upiir/led_ring_lig...
WOKWI sketch: https://wokwi.com/projects/3846224064...
Source files on PCBway: https://www.pcbway.com/project/sharep...

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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. This time, we will be using the multiplexing chip MAX7219, that can be bought very cheaply together with PCB and all the required components. We will create a custom PCB in KiCad to place the LED ring light and Potentiometer and replace the 8x8 LED Matrix Display.

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Links from the video:
- LED ring light: https://s.click.aliexpress.com/e/_Dmv...
- 10K Potentiometer: https://s.click.aliexpress.com/e/_Dk1...
- MAX7219 module: https://s.click.aliexpress.com/e/_DkX...
- Round hole pin header: https://s.click.aliexpress.com/e/_DkU...
- 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/_Dkb...
- 8x8 LED Matrix Display connections: https://acoptex.com/project/160/basic...
- LedControl library: https://github.com/wayoda/LedControl
- WOKWI Matrix Display documentation: https://docs.wokwi.com/parts/wokwi-ma...

Other videos using 8x8 LED Matrix display and Multiplexing (MAX7219)
- Pimp my potentiometer (part 1):    • Pimp My Potentiometer!  
- Matrix display counter:    • Arduino + Matrix Display (The Proper ...  
- Matrix display stencil overlays:    • Why are pixels square?  
- Wood clock:    • Arduino Wood Clock  



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PCBWay is a service for manufacturing custom PCBs. If you click the link above, you will get a coupon for $5, which is exactly the price of 10 pieces of custom PCBs. In that case, you will only pay for shipping. Do you have any experience doing this? Please let me know in the comment section!

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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!

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#arduino #diy #LED

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