How to drive 20 RGB LEDs using PWM

[Pavi98]

Hello there,
I'm working on a project to control 20 RGB LEDs by using arduino PWM pins. Can you give a proper circuit diagram to power those LEDs?

Thank you

 

[For The Popcorn]

Try this link.

 

[danadak]

Are the LEDs all bare RGB, no driver on them of any kind ?

Do you want static drive or can you use scanned matrix type drive ?

Part number for LEDs and your available power supply for the LEDs ?

https://pdfserv.maximintegrated.com/en/pg/led-drivers-for-general-lighting.pdf

https://www.infineon.com/dgdl/Infineon-Z8F64898475_LED_driving_concepts_and_Linear_LED_drivers-ApplicationNotes-v01_20-EN.pdf?fileId=5546d462696dbf120169b4cb29224b30

Regards, Dana.

 

[Pommie]

I'd use neopixels that use a ws2812 chip to control each one. Lots of examples using Arduino on the web.

Mike.

 

[tepalia02]

Which LEDs are you using? Ordinary RGB LEDs? (If yes, are they CC or CA?) Or Neopixels?