building a long array of LEDs

Projects General Guidance
1

Hi,

I have an application where 12 LEDs are supposed to light up to signify 12 different situations. They are to be controlled via the Nano (each pin controls 1 LED)

The LEDs must be placed in a straight line 40mm apart from each other. As you can see, this is pretty long. If I use the common breadboard LEDs (where one leg is longer), this would involve lots of wire joining, and long wires to reach the Nano and power supply. I'm not even sure what's the best way to join those LED legs to a stranded wire, perhaps I'll solder it.

But I wonder if there are easier, less messy solutions?

Thanks

2

WS2812 RGB LED strips can be cut and wires soldered to space the individual LEDs at whatever spacing you want. And it takes only 1 (5V) Arduino output pin to control all of the LEDs in the strip.