wonstoneyoo

Seoul, Korea, South Joined March 5th, 2014
4 Instructables 7,469 Views 14 Comments 4 Followers

an electric engineer with State issued license

Instructables

Lazy Boy's RF Switch Box

695 Views, 5 Favorites

Li-Ion Battery Pack to Replace 9V Battery for DMM

2.8K Views, 12 Favorites

Voltage Alert Pen Hack

1.2K Views, 3 Favorites

18650 Battery Charger, Transformed From Galaxy S Charging Cradle

2.8K Views, 14 Favorites