Instructables: http://www.instructables.com/id/A23-23AE-Battery-Holder/
A23 batteries are 12 v and its size is almost half of AAA battery. So it gives chance to use it in smaller projects. Its voltage output (12 v) also an advantage to use it in arduino projects by helping 7805 5v regulator. I was made an A23 battery holder for my arduino project and it was so useful for me.
It is an easy to make project.
Regards.
Music: http://www.bensound.com
Post time: Feb-18-2017