sequential LED

[luke holloway-vine]

im wanting to use either a raspberry pi or arduino to controll a row of 12v LED's to come on in a sequence i can program. im very new to electronics but have done some programming but can pick up and understand things faily easily. any help is appreciated as im really scrathing my head at the minute.

 

[cjdelphi]

Each LED strip can be controlled via a fet, each pin sits on the gate of each fet, a darlington pair is a second option, there's not enough current from an arduino pin to fully saturate an npn without damaging tge arduino

 

[cjdelphi]

A logic 5v fet for arduino anyway

 

[luke holloway-vine]

so each LED in the sequence would have to have its own fet and be controlled by a pinout on the arduino

 

[BobK]

If you are talking about 20mA (or less) individual LEDs, they can be driven directly from and Arduino pin.

cjdelphi's answer seems to assume you are using LED strips, which I did not see in your post.

Bob

 

[cjdelphi]

A row of 12v leds

I presumed several leds in series?

 

[cjdelphi]

What led is the question?