How do you get more amps?

Community PCB Design
1

I’m doing a project with an arduino and 15 RGB leds. The leds draw 300mA per color. The arduino only outputs 40mA on each digital output. How can I get more amps and still maintain my ability to dim the leds?

2

ULN2803 drivers?

Leon

3

So I connect the digital output to the 1B side, and the led to the 1C side, right?

4

My data sheet has the pins on the left (1-8 ) marked “In” and the pins on the right (11-18 ) marked “Out”. Digital inputs from the Arduino would go to “In” pins and the LEDs are connected to the “Out” pins.

Leon