ATMEL Mega1284P evaluation board avalible

Robert,

  • for example: here are 2 eagle files, you can open them and copy the battery holder part..

http://garden.seeedstudio.com/index.php?title=Wiseduino

http://www.wiseduino.com/?cat=3

  • the cr1220 battery holder on the board seems to be this type:

http://www.ebay.com.au/itm/10pcs-CR1220-1220-Computer-Battery-Socket-Holder-Case-/300553623491?pt=AU_B_I_Electrical_Test_Equipment&hash=item45fa6457c3

bat1220.jpg