GMU:Devices of Perception/Gokcen Dilek Acay

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  Serial Led

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  with 555 timer

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  with 555 timer / connected to speaker

FINAL PROJECT

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  555 timer for sound

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  with 555 timer for sound

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  with walking pin counter

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  with walking pin counter ii

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  with walking pin counter ii

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  with walking pin counter I 40 LED lights soldered

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  with walking pin counter I 40 LED lights soldered

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  with walking pin counter I 40 LED lights soldered

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  with 555 Astable Mode

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  connected with speakers

FINAL PHOTOS

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  getting into the box

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  inside the box

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  using flash light

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  LED lights how they looks inside the box

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  inside the box with LED lights

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  Speaker and Photocell in the box

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  our class

LED and Sound

experiment made by Dilek Acay & Sonia Tiosanto

Short Description: This work is still on progress. This is an interactive black box. The Light inside affected sound but the visitor could play more with that. The sound could change through the light by the visitor.

Technical information: We built five board with 555 timer. Four of them is for LED light and one of for sound. We used 40 LED lights and each of them counts from 0 to 9. It calls ‘Walking Pin Counter’. We used the chip 4017. We could operate the speed of light with dimmer. For sound we used 4 times 555 timer on the same board which connected with each other and each had own photocell. Through the photocell you could control or change the sound. Because photocell is kind of sensor and a light sensitive device.

We created a dark environment for these devices. We put basically the 40 LED lights inside top of the black box, which we built by own self. The small black room is 2m high 1.5m wide and we covered it with black fabric. We put a turning hocker inside which could turn 360 degree. You can sit on it and try to find where the photocell with another light device. We took flashlight for second light source. The visitor could take the portable flash light and try to change the sound.