In the video we see our concept hippo fully operational. The waste paper is placed in front of the hippo on top of the light sensor placed underneath the surface. This decrease the value of light passed to the serial port, which in turn activates an 'if' statement to start the motor sequence because the value is below 200. This then turns the motor to move the hippos head, and neck to dispose of the waste paper into a hole, and into the bin. The motor only runs through its cycle once due to the fact that the light sensor is constantly monitoring, and so once the value to the serial port is back above 200, the 'if' statement to run the motor cycle is no longer true. In addition to this the movement of the hippo activates the speaker which plays an environmental message which is” Thank you you’ve just saved a tree”, this is due to an arm, as an extension to neck and its movement, which slides in and out between two metal terminals. When the terminals touch the sound is played, and when the arm is between them, the message stops.
Our concept would be applied to a waste paper bin within the home or office. However we could take it much further by having hippo’s made out of more rigid and lightweight materials so that they would be durable and able to consume different waste materials. Such as soda cans, plastics, food wrappers etc.
So the final result could be four hippos of different colour, just like the game, that are used for four different recycling materials.
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