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11-18-2010, 03:18 PM
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Join Date: Jun 2007
Location: Grand Lake, CO
Posts: 18
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Wiring a 3 volt accessory
I have a GoPro camera mounted in my -4. The problem is having AAA Lithium batteries on hand (and installed) when I need them. I would like to install a circuit that comes from my aircraft's wiring system and runs into the camera that I could control from my switched panel. Has anyone got any ideas? This would have to drop the voltage from 12V down to 3V. If anyone knows of any "gotchas" I should look out for, I would appreciate hearing about those also.
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11-18-2010, 03:22 PM
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Join Date: Mar 2005
Location: Dallas area
Posts: 10,762
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Check with Radio Shack or other electronics store for an adapter. They usually have several options for various voltage outputs.
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Mel Asberry, DAR since the last century.
EAA Flight Advisor/Tech Counselor, Friend of the RV-1
Recipient of Tony Bingelis Award and Wright Brothers Master Pilot Award
USAF Vet, High School E-LSA Project Mentor.
RV-6 Flying since 1993 (sold)
<rvmel(at)icloud.com>
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11-18-2010, 03:32 PM
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Join Date: Aug 2005
Location: Dallas/Ft Worth, TX
Posts: 5,668
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LM317 adjustable voltage regulator, cheap & pretty simple to build one. Do a google search and you will find plenty of reference material on how to put one together. Total cost probably under $5 
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Walt Aronow, DFW, TX (52F)
EXP Aircraft Services LLC
Specializing in RV Condition Inspections, Maintenance, Avionics Upgrades
Dynamic Prop Balancing, Pitot-Static Altmeter/Transponder Certification
FAA Certified Repair Station, AP/IA/FCC GROL, EAA Technical Counselor
Authorized Garmin G3X Dealer/Installer
RV7A built 2004, 1700+ hrs, New Titan IO-370, Bendix Mags
Website: ExpAircraft.com, Email: walt@expaircraft.com, Cell: 972-746-5154
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11-18-2010, 04:00 PM
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Join Date: Sep 2007
Location: OH
Posts: 206
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12v to 3v
Try this:
http://www.powerstream.com/dc6.htm
M. Wyss
RV4 in the paint booth
and firewall forward |
11-18-2010, 06:28 PM
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Join Date: Dec 2004
Location: I live in on the Rosamond Skypark (CA) and am married to Victoria (Tuppergal).
Posts: 982
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Quote:
Originally Posted by Walt
LM317 adjustable voltage regulator, cheap & pretty simple to build one. Do a google search and you will find plenty of reference material on how to put one together. Total cost probably under $5 |
Twenty Six years after graduating college, LM317 immediately popped into my head too Here's a very simple circuit that I found for you, Rosie
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Paul A. "Rosie" Rosales
Rosamond Skypark (L00), CA
RV-6A, 4200+ hours since 7/4/2000
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11-18-2010, 06:48 PM
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Join Date: Jun 2008
Location: Dallas, TX
Posts: 23
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Does the camera have a USB port? If it will record while powered over USB and no batteries, that might simplify things...
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