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ModeratorPermalink Reply by Chris Anderson on November 10, 2009 at 10:23am

I might add a Mode LED if your autopilot has several modes, like ArduPilot (waypoint, rtl, fly-by-wire, manual)

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Permalink Reply by Faisal Shah on November 10, 2009 at 10:35am

That's a good idea. I can use an RGB led (like http://www.sparkfun.com/commerce/product_info.php?products_id=7844). 3 colors for the 3 modes, and off when in manual mode! Noted :)

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Permalink Reply by Andrus Kangro on November 10, 2009 at 11:36pm

Hi, I would think of 3 leds:
1. green: board has power
2. yellow: non-critical error (you can fly the plane manually, but autopilot won't work - can be sensor issues, also gps.)
3. red: critical error, unsafe to fly plane (at least one RX input is missing, voltage too low, etc)

I would connect serial display in order to get more detailed fault information when alarmed by led's.

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Permalink Reply by Vincent on November 15, 2009 at 1:53am

I've seen some really nice surface mount LEDs that have three colors on the one LED.

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