The colour of Blinkenlights

A project log for S1-AU Mk1: a 4-bit arithmetic unit

The S1-AU Mk1 is a 4-bit arithmetic unit, designed to help you explore the guts of computing.

ARITH-MATICARITH-MATIC 02/24/2018 at 15:146 Comments

Thinking of shipping the S1-AU Mk1 kits with yellow LEDs - PDP-8/I style - rather than red... What does everybody think?


Ted Yapo wrote 03/01/2018 at 00:06 point

I like the yellow.  I also wonder if you could find warm white diffused LEDs ... they might evoke incandescent bulbs.

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Andrew Starr wrote 03/01/2018 at 00:00 point

Superb work! As for colour, I prefer traditional red :)

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Dave's Dev Lab wrote 02/25/2018 at 01:03 point

just NOT blue!

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Dr. Cockroach wrote 02/24/2018 at 18:59 point

I like the yellow, just seems to give the board a natural look. Red can be rather harsh.  As Marcel said, very stylish.

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ARITH-MATIC wrote 02/24/2018 at 16:47 point

Agreed - I've somewhat run out of components so might have to stock up and do a proper comparison.

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Marcel van Kervinck wrote 02/24/2018 at 16:09 point

It is hard to say with confidence with the other components missing. Green could also work. The PCB looks fantastically stylish!

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