Mailing List lml@lancaironline.net Message #54239
From: Hamid Wasti <hwasti@lm50.com>
Sender: <marv@lancaironline.net>
Subject: Re: [LML] Re: Do-it-yourself AOA Project
Date: Mon, 18 Jan 2010 08:45:00 -0500
To: <lml@lancaironline.net>
Good catch. I saw the promotional pictures that showed all the LEDs on and calculated that case. Having only one LED on at a time raises some serious user interface issues. My bad for expecting more from the user interface.

You are right, it is all in the details -- all the details.

Regards,

Hamid

Wolfgang wrote:
After closer examination of the AoA display circuit from http://www.barkeraircraft.com/files/AOA_rDisplay.pdf, it appears that pin 9 of the LM3914 is left open.
 
That means the device is running in the dot mode, only one led at a time is illuminated, rendering all over heating questions moot.
 
It's all in the details . . . .
 
Wolfgang
 
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