sponsors the expo, the company was joined by a second sponsor: the company Gadget Gangster. Unofficial Propeller Expo Chicago (UPEC) The UPEC, also known as the "Chicagoland Propeller Expo," was a one-day event held at the 807 Building in Ottawa, Illinois. Unofficial Propeller Expo West (UPEW) The UPEW, was the only one of the three UPE's to be located at Parallax's offices in Rocklin, California. This UPE also offers a special educator's course hosted by Parallax's engineer and author Andy Lindsay. The Parallax forum Before 2004, the Parallax product user support forum was hosted in Yahoo! Discussion Groups. In 2004, this discussion group was moved from Yahoo! to Parallax Forums, located through Parallax's website. Members frequently discuss projects, programming, and products designed around the BASIC Stamp and Propeller Chip. Also, students can use the forums as a place to ask questions and receive direction to solve homework and projects. Products sold Microcontrollers BASIC Stamp Propeller Robots Boe-Bot ActivityBot 360 Robot Kit Robot Shield with Arduino SumoBot Scribbler 2 ELEV-8 Quadcopter Other products PING))) Ultrasonic Distance Sensor RFID Reader Module Spinneret web server board Discontinued robots and products Scribbler Penguin Robot - small two-legged walking robot HexCrawler -Parallax had teamed up with Crust Crawler Robotics to create the HexCrawler. Toddler - two-legged walking robot Parallax SX Digital In/Out Board BASIC Stamp OEM Kits Propeller Demo Board Javelin Stamp Spin Stamp HYDRA Game Development Kit Upcoming products Propeller 2 References External links UK Official Distributor Parallax Forums Parallax Events Photos Companies based in Placer County, California Electronics companies of the United States Manufacturing companies based in California Privately held companies based in California