With Instructables you can share what you make with the world, and tap into an ever-growing community of creative experts.
Tell us about yourself!
instead os the dpdt switch , try a switched power jack, so it will switch to ac power when you plug it and will switch back to battery when you unplug it, its like thishttp://www.ebay.com/itm/5-x-DC-Power-Jack-2-1mm-Enclosed-Frame-With-Switch-External-USA-Seller-Free-Ship-/221774839509?hash=item33a2cf7ed5:g:u3gAAOSwpDdVWBxK
Let your inbox help you discover our best projects, classes, and contests. Instructables will help you learn how to make anything!
© 2016 Autodesk, Inc.