Battery-Free Operation in Existing Building Automation Networking Protocol

The averse reaction of lithium batteries inspired researchers to look for alternat-<br/>ives for energy storage in electronics. Battery-free or intermittent devices intro-<br/>duce a new paradigm with their own specific problems about power, state track-<br/>ing, timing and communication. We implemented the battery-free paradigm in<br/>the...

Development Of An Energy-Efficient Gaming Platform To Evaluate Novel User Interaction

In the modern age, the proliferation of electronic devices and their subsequent waste presents an increasing environmental challenge. With the continuing growth of technology and the urgency of sustainability becoming ever more important, there is an ever-increasing need to reimagine how we power and utilize our devices. This has been...

Testing Intermittent Battery-free Systems

Existing tools for debugging battery-free applications are limited to specific architectures or require code changes of the Device Under Test (DUT) to function. These tools also cannot measure the efficiency of the application designed for battery-free systems. Currently, there is a lack of independent broad comparisons of intermittent systems....

CardioSync: Heartbeat-Based BLE Synchronization for Batteryless IoT Devices

Batteryless Internet of Things (IoT) devices powered by energy harvesting enable sustainable and maintenance-free operation, but face challenges in achieving synchronised bidirectional communication between intermittently-powered nodes. This thesis presents CardioSync, a novel framework that leverages the human heartbeat as a shared clock to...

Towards Deployable Battery-Free Networked Systems

The ecological impact of today’s battery-powered Internet of Things (IoT) is troubling. Technology advancements that reduce the reliance on batteries could blunt the environmental impact of the projected billions of IoT devices. With the emergence of low-cost, small, and high-performance microcontrollers, along with more efficient micro-energy...

Accelerating Programmer-Friendly Intermittent Computing

The Internet of Things (IoT) is taking the world by storm, from smart lights to smart plant monitoring. This revolution is not only present in consumers’ homes, but companies are also looking for more and more ways to monitor every aspect of their production process. This transition to ubiquitous monitoring is made possible by extremely low...

Intermittently-powered bluetooth that works

We present an architecture for intermittently-powered wireless communication systems that does not require any changes to the official protocol specification. Our core idea is to save the intermediate state of the wireless protocol to non-volatile memory within each connection interval. The protocol state is then deterministically restored at...

A Crystal-Less Clock Generation Technique for Battery-Free Wireless Systems

The size of wireless systems is required to be reduced in many applications, such as ultra-low-power sensor nodes and wearable/implantable devices, where battery and crystal are the two main bottlenecks in system miniaturization. In recent years, battery-free radios based on wireless power transfer (WPT) have shown great potential in...

WARio: efficient code generation for intermittent computing

Intermittently operating embedded computing platforms powered by energy harvesting require software frameworks to protect from errors caused by Write After Read (WAR) dependencies. A powerful method of code protection for systems with non-volatile main memory utilizes compiler analysis to insert a checkpoint inside each WAR violation in the...

Battery-Free Game Boy

We present ENGAGE, the first battery-free, personal mobile gaming device powered by energy harvested from the gamer actions and sunlight. Our design implements a power failure resilient Nintendo Game Boy emulator that can run off-the-shelf classic Game Boy games like Tetris or Super Mario Land. This emulator is capable of intermittent...

Battery Free Jogger Light: Energy Harvester

This thesis treats designing and building a linear generator which is used to power the Battery Free Jogger Light. This harvester needs to be able to generate power from the movement of a jogger. This Battery Free Jogger Light is meant to be used by people while jogging in dark environments to improve their visibility and thus safety. The...

Battery Free Jogger Light: Energy Storage

The deliverable of this project is a light for joggers that does not use a battery and keeps blinking for a short period of time after standing still. This research details the design and implementation of the storage part of a battery free jogger's light. The goal of this storage part is that it stores energy delivered by an energy harvester so...