The Donald Danforth Plant Science Center’s Maker Group in St. Louis is holding their second Raspberry Jam on Saturday, October 3, 2015 from 1-5pm. The event is free and is open to all ages, families, engineers, science and robot enthusiasts, and educators. During the event, demonstrations and activities by local makers and robotic groups will showcase and explore the use of the Pi. Other maker projects will also be there to provide a day of collaborative science and fun.