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0 pointsCamperBob21y ago0 comments

Resistor for an LED: 100 ohm

Yeah, that's why I can read a book by the blue LEDs on my alarm clock...

0 comments

Depending on the colour bleed though. It may wipe out all visibility of the clock numbers.

And to think a little dimming circuit with LDR/phototransistor (RoHS..) is practically electronics 101...

j / k navigate · click thread line to collapse

Depending on the colour bleed though. It may wipe out all visibility of the clock numbers.

And to think a little dimming circuit with LDR/phototransistor (RoHS..) is practically electronics 101...

j / k navigate · click thread line to collapse