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shows HTC lighthouse test results, https://www.youtube.com/watch?v=E6lvE_OS6rk
laser cutter works, https://www.youtube.com/watch?v=CveRkcH8us0
programming DotBot with Scratch
Scratch-based robot: https://www.makeblock.com/mbot/
5x students signed up to SmartMesh IP-based sensor classes (Thomas Watteyne pointed at https://dustcloud.atlassian.net/wiki/spaces/ALLDOC/pages/40468511/Dust+Academy )