driving 12 volt led

Projects General Guidance
1

I want to drive 12 volt LEDs from an Arduino Nano. How do I increase the current coming from the board to 12 volts?

2

Look up ULN2003A (you still need current limiting resistors).

3

Hi,
How many LEDs and what current?

You will need a 12V supply to power the LEDs, the Arduino will then switch the current to supply them.

Tom... :slight_smile:

4

TomGeorge:
the Arduino will then switch the current to supply them.

but not directly. You need some current amplifier / voltage isolation, such as provided by a transistor or transistor array.