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LED brightness toned down

A project log for Altair 8800 front panel Ardiuno shield

A very small fully-functional interface for an Arduino Due emulating an Altair 8800

justin-davisJustin Davis 03/07/2017 at 18:400 Comments

I replaced the 1k current limiting resistors with 10k resistors and it's much more bearable to look at now. It may not come across in the photos.

I haven't uploaded a schematic just yet since I'm still making some small changes with components. But here's the LED driver. R1 is now 10k.

Next I need to check the polarity of my DIP switches. I want "up" to be "on" like in the Altair. Which means a short on the switch. I think that means I need to install the switches upside down, but that's ok.

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