Statement:
Heart beat in many cultures has a meaning of emotions and feelings. In the "Heart Beat" project, we try to build a device which can visualize people's heart beat and create magic feelings. In the developing of this project, we made three prototypes. The first prototype is a heart-beat box which can sense and visualize our heart beat if we put our fingers on the sensor. Red LEDs with in the heart-shaped box will flash according to the beat it senses. In the second version of prototype we tried to projected ripples on the wall. The ripples spread out according to our heart beats. In the final version of prototype we built a mobile projector system which receives signal from a wireless heart-beat-sensor box. Holder holds the projector moving around and she/he can pass the sensor to other people. The projector projects animation of the heart beat it senses on the floor. We hope the device can augment the communication between people and engage more people into talking by trying visualizing their own heart beats.
Video:
HeartBeat from Benny Zhang on Vimeo.
Tech description:
One pair of IR LED and receiver is used for the heart beat sensor. The LED is connected with 5v power and emits stable power of light. The IR light then be reflected by our finger so that the light the receiver received changes according to the density of fingers. Every time Our heart beats, blood flushes into the finger changing the density repeatedly thus with algorithm the heart beat can be detected. The signal is then transmitted to the arduino connected with laptop using wireless module. Processing program receives signal from serial and draw the animations.
Acknowledgements
Dale Clifford
Zack Jacobson-Weaver
Ali Momeni
Golan Levin
Aisling Kelliher
P. Zach Ali
Thank you and all our classmates. We learn a lot from this course because of your enlightening ideas.
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