One problem with the e-beam setup was that a person's body gets in the way of the projection - very annoying. Obviously the school could better place the projector/board to avoid this. however the Promethean setup has an easily adjustable projector.
Another problem with e-beam is that a wayward arm can block the beam and pen movements will not be detected.
The e-beam software is poor. Promethean has better software. Both devices can be used as a standard projector screen, i.e. show online content, etc.
Some e-beam software in action.
Bun go Barr - Irish Language Software on E-Beam IWB
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| E-beam setup. Notice the device in the top left corner of the board - this is the e-beam detector and is connected to a laptop via USB cable. The board itself is just a standard whiteboard and generally would not be height-adjustable. Also note speakers. |
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| Same e-beam setup again, this time showing projector. Its a bog-standard projector hooked up to a laptop with a VGA cable. |
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| Laptop contains e-beam interface software and some very basic e-beam applications. |
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| Enter RoboCop, a.k.a. 'Promethean', stage left. E-beam scuttles away hurriedly. Adjustable board height. Adjustable projector (included). Touchscreen board (via pen, not fingers) so no pen detector beam (that's a good thing). Lot's of propriety software but can also be used as a standard projector or laptop display/controller, just like e-beam (online games, etc.). |
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