[time-nuts] Thunderbolt controllers

Hal Murray hmurray at megapathdsl.net
Mon Jul 7 14:40:43 EDT 2008

> Yeah,  you really do need a display...  this is the 21st century...
> monkeys got better things to do than count blinkenlights (or read a
> message scrolling across a six character LCD).    

A simple blinking LED is handy to alert you that there is a problem.

I was probably assuming that you already had a PC setup to log stuff and that 
you would go look there if you wanted to know what the problem was.

About 25 years ago, I worked on a system that used the hack of unary encoding 
small integers in a blinking LED.  That was before small LCDs were 
inexpensive and readily available.  It worked.  Yes, it's not great.  It (or 
something similar) might be useful today if you were trying to avoid adding a 

These are my opinions, not necessarily my employer's.  I hate spam.

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