excamera, what I'm hacking on, daily.

jamesb@excamera.com

Running on 12V down speaker wire
I'm running it directly off DC on 100 feet of 16AWG speaker wire. At first the board wouldn't power up, and a quick check with a voltmeter showed that the droop was about 1.5V, from 12.0V to 10.5V. Fortunately the AC-DC supply has a trim adjustment; so winding this up until the DC-DC PSU was getting 12.0V did the trick.

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Next issue: temp monitoring
I notice that the motherboard is getting quite hot. A quick check shows that the the heatsinks are getting as get as warm as 120 degrees F. The temperature monitoring tools return 255, hmm...

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