Multiple LEDs / LED module to act as illuminating purpose for Arduino UNO

Hi everyone. I'm going to make an RC car with cam controlled by Android.

I want to equip the car with a lighting module so that I can still control the car through watching at the cam preview in a dark environment.

Is there any general approach to this? I don't have much pins left so it may not be possible to attach multiple LEDs to the UNO.

Any suggestions will be appreciated! :slight_smile:

LEDs for lighting consume much power, more than an Arduino pin can supply. You need a driver circuit (FET...), which then can power any number of LEDs from a single common signal (digital output). With a PWM pin you even can control the brightness of the LEDs.