Circuit Stickers is a toolkit for crafting electronics using flexible and sticky electronic pieces. These stickers are created by printing traces on flexible substrates and adding conductive adhesive. These lightweight, flexible, and sticky circuit boards allow us to begin sticking interactivity onto new spaces and interfaces such as clothing, instruments, buildings, and even our bodies.

An interactive picture book that explores storytelling techniques through paper-based circuitry. Sensors, lights, and microcontrollers embedded into the covers, spine, and pages of the book add electronic interactivity to the traditional physical picture book, allowing us to tell new stories in new ways. The current book, "Ellie," tells the adventures of an LED light named Ellie who dreams of becoming a star, and of her journey up to the sky.

Doppelmarsh is a cross-reality sensor data browser built for experimenting with presence and multimodal sensory experiences. Built on evolving terrain data from a physical wetland landscape, the software integrates real-time data from an environmental sensor network with real-time audio streams and other media from the site. Sensor data is rendered in the scene in both visual representations and as 3D sonification. Users can explore this data by walking on the virtual terrain in a first person view, or flying high above it. This flexibility allows Doppelmarsh to serve as an interface to other research platforms on the site, such as Quadrasense, an augmented reality UAV system that blends a flying live camera view with a virtual camera from Doppelmarsh. We are currently investigating methods for representing subsurface data, such as soil and water temperatures at depth, as well as automation in scene and terrain painting.

The FingerSynth is a wearable musical instrument made up of a bracelet and set of rings that enables its players to produce sound by touching nearly any surface in their environments. Each ring contains a small, independently controlled audio exciter transducer. The rings sound loudly when they touch a hard object, and are silent otherwise. When a wearer touches their own (or someone else's) head, the contacted person hears sound through bone conduction, inaudible to others. A microcontroller generates a separate audio signal for each ring, and can take user input through an accelerometer in the form of taps, flicks, and other gestures. The player controls the envelope and timbre of the sound by varying the physical pressure and the angle of their finger on the surface, or by touching differently resonant surfaces. The FingerSynth encourages players to experiment with the materials around them and with one another.

Imagine a future where lights are not fixed to the ceiling, but follow us wherever we are. In this colorful world we enjoy lighting that is designed to go along with the moment, the activity, our feelings, and our outfits. Halo is a wearable lighting device created to explore this scenario. Different from architectural lighting, this personal lighting device aims to illuminate and present its user. Halo changes the wearer's appearance with the ease of a button click, similar to adding a filter to a photograph. It can also change the user's view of the world, brightening up a rainy day or coloring a gray landscape. Halo can react to activities and adapt based on context. It is a responsive window between the wearer and his or her surroundings.

KickSoul is a wearable device that maps natural foot movements into inputs for digital devices. It consists of an insole with embedded sensors that track movements and trigger actions in devices that surround us. We present a novel approach to use our feet as input devices in mobile situations when our hands are busy. We analyze the foot's natural movements and their meaning before activating an action.

Living Observatory is an initiative for documenting and interpreting ecological change that will allow people, individually and collectively, to better understand relationships between ecological processes, human lifestyle choices, and climate change adaptation. As part of this initiative, we are developing sensor networks that document ecological processes and allow people to experience the data at different spatial and temporal scales. Low-power sensor nodes capture climate and other data at a high spatiotemporal resolution, while others stream audio. Sensors on trees measure transpiration and other cycles, while fiber-optic cables in streams capture high-resolution temperature data. At the same time, we are developing tools that allow people to explore this data, both remotely and onsite. The remote interface allows for immersive 3D exploration of the terrain, while visitors to the site will be able to access data from the network around them directly from wearable devices.

We face a well-known need for innovation in electronic medical records (EMRs), but the technology is cumbersome and innovation is impeded by inefficiency and regulation. We demonstrate MedRec as a solution tuned to the needs of patients, the treatment community, and medical researchers. It is a novel, decentralized record management system for EMRs that uses blockchain technology to manage authentication, confidentiality, accountability, and data sharing. A modular design integrates with providers' existing, local data-storage solutions, enabling interoperability and making our system convenient and adaptable. As a key feature of our work, we engage the medical research community with an integral role in the protocol. Medical researchers provide the "mining" necessary to secure and sustain the blockchain authentication log, in return for access to anonymized, medical metadata in the form of "transaction fees."

NailO is a nail-mounted gestural input surface inspired by commercial nail stickers. Using capacitive sensing on printed electrodes, the interface can distinguish on-nail finger swipe gestures with high accuracy (>92 percent). NailO works in real time: the system is miniaturized to fit on the fingernail, while wirelessly transmitting the sensor data to a mobile phone or PC. NailO allows for one-handed and always-available input, while being unobtrusive and discrete. The device blends into the user's body, is customizable, fashionable, and even removable.

Inspired by previous work in the field of sonification, we are building a data-driven composition platform that will enable users to map collision event information from experiments in high-energy physics to audio properties. In its initial stages, the tool will be used for outreach purposes, allowing physicists and composers to interact with collision data through novel interfaces. Our longer-term goal is to develop strategic mappings that facilitate the auditory perception of hidden regularities in high dimensional datasets and thus evolve into a useful analysis tool for physicists as well, possibly for the purpose of monitoring slow control data in experiment control rooms. The project includes a website with real-time audio streams and basic event data, which is not yet public.

SensorTape is a modular and dense sensor network in a form factor of a tape. SensorTape is composed of interconnected and programmable sensor nodes on a flexible electronics sub-strate. Each node can sense its orientation with an inertial measurement unit, allowing deformation self-sensing of the whole tape. Also, nodes sense proximity using time-of-flight infrared. We developed network architecture to automatically determine the location of each sensor node, as SensorTape is cut and rejoined. We also made an intuitive graphical interface to program the tape. Our user study suggested that SensorTape enables users with different skill sets to intuitively create and program large sensor network arrays. We developed diverse applications ranging from wearables to home sensing, to show low-deployment effort required by the user. We showed how SensorTape could be produced at scale and made a 2.3-meter long prototype.