Contra Costa County Library: Soldering Station
Contra Costa County Library: Arduino Sonar Robot
Contra Costa County Library: Dave and Students
Contra Costa County Library: Hack A Pumpkin Arduino
Contra Costa County Library: Makers Hacker Builders
Contra Costa County Library: LED Light Soldering
Contra Costa County Library: Hack A Pumpkin Class
Contra Costa County Library: Ian Soldering Mentor