LEGO WeDo – Using a Motor and Two Sensors

Can students use a motor and two separate sensors with WeDo?  If you hook up the motion and tilt sensors to the USB hub and put a sensor  on top of the motor, it does not really work.  You get continuous beeping and the Connection Tab flashes different images and it does not work reliably.

However, if you use two separate USB WeDo hubs, each in separate USB ports on your computer, it does work reliably.  The screenshot below shows the program for a burglar alarm.  When either sensor goes off (independently), the motor moves and a different sound is produced for each sensor.  You do have to provide additional USB hubs (than each kit provides) for this to work.

WeDo double sensors with motor

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