Optical Vibe LED Selection (The Abyss)

[ThinAir]

I’m building up The Abyss and noticed that the BOM calls for a 5mm yellow LED placed at the center of the photo cell array.

Is it OK to use a diffused yellow
LED or is there an optimal LED to use for the optical cells?

 

[chongmagic]

I have built two with a diffused yellow and it sounds great.

 

[Dreamlands]

It seems a reasonable assumption that a diffuse (thus approaching uniform) distribution of light falling incident upon the LDRs would be what you'd want here.
Though, that makes me wonder about non-uniformity and whether or not that'd be interesting. Looking forward to learning.

I'm building one of these very soon, can't wait to get started.

 

[yeeeargh]

you could use a socket and make the led interchangeable

 

[Dreamlands]

I was curious about LED color here, so just thought I'd share:

Peak spectral response of the KE-10720 LDRs used in the Abyss is between 550 to 650nm.

555-585nm​	Yellow-Green​
585-600nm​	Yellow​
600-615nm​	Amber​
615-625nm​	Orange​
625-640nm​	Orange-Red​