Proceedings of the SIGCHI conference on Human Factors in Computing Systems
Issues and techniques in touch-sensitive tablet input
SIGGRAPH '85 Proceedings of the 12th annual conference on Computer graphics and interactive techniques
DiamondTouch: a multi-user touch technology
Proceedings of the 14th annual ACM symposium on User interface software and technology
SmartSkin: an infrastructure for freehand manipulation on interactive surfaces
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
ThinSight: versatile multi-touch sensing for thin form-factor displays
Proceedings of the 20th annual ACM symposium on User interface software and technology
The see-Puck: a platform for exploring human-robot relationships
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
ThinSight: a thin form-factor interactive surface technology
Communications of the ACM - Finding the Fun in Computer Science Education
Proceedings of the 22nd annual ACM symposium on User interface software and technology
Interactive block device system with pattern drawing capability on matrix leds
CHI '12 Extended Abstracts on Human Factors in Computing Systems
FlexAura: a flexible near-surface range sensor
Proceedings of the 25th annual ACM symposium on User interface software and technology
| Hi-index | 0.00 |
Light Emitting Diodes (LEDs) offer long life, low cost, efficiency, brightness, and a full range of colors. Because of these properties, they are widely used for simple displays in electronic devices. A previously characterized, but little known property of LEDs allows them to be used as photo sensors. In this paper, we show how this capability can be used to turn unmodified, off the shelf, LED arrays into touch sensitive input devices (while still remaining capable of producing output). The technique is simple and requires little or no extra hardware - in some cases operating with the same micro-controller based circuitry normally used to produce output, requiring only software changes. We will describe a simple hybrid input/output device prototype implemented with this technique, and discuss the design opportunities that this type of device opens up.