<h1>Sustainable electronics disentangled</h1>Sustainability is taking centre stage in many business sectors and the electronics industry is no exception. Yet, when we look deep into the newest electronic devices around us, are these really fundamentally more sustainable than the ones we were used to 10 or 20 years ago? In this article, we will look into how to make IoT and small electronic devices more sustainable, namely through energy harvesting. In doing that, we will introduce the SELECT project, where ONiO and a group of strategic partners are bringing together unique building blocks to enable a more sustainable future for electronics.IoT nodes and small, portable electronic devices are an integral part of today’s increasingly digitally connected society. The <a href="https://iot-analytics.com/number-connected-iot-devices/">number of connected IoT devices</a> was estimated at 19 billion in 2024, projected to grow to more than 40 billion by 2030. Yet, the growth of IoT seems to be lagging behind compared to some of the earlier prognostics, which have, for instance, pointed to <a href="https://community.arm.com/cfs-file/__key/telligent-evolution-components-attachments/01-1996-00-00-00-01-30-09/Arm-_2D00_-The-route-to-a-trillion-devices-_2D00_-June-2017.pdf">one trillion IoT devices produced until 2035</a>. One of the major bottlenecks limiting further scalability of present and future IoT is power and, in particular, the reliance on pervasively spread battery-powered devices. At the same time, the scale of deployments raises deep concerns with sustainability, concerns which spread across IoT, small electronic devices, and the electronics industry at large.<h2>Sustainability: beyond the buzz&nbsp;</h2>Despite all the buzz around sustainability over the past decades, truth be told, the core materials and the pillar principles of electronics design for mass production remain pretty much unchanged. Yet, the industry has a growing pool of more sustainable options on the table nowadays, and it’s time to turn the talk about sustainability into real, impactful actions.It is not difficult to find grand vision statements about sustainability from large electronics corporations in the past few years. For instance, back in 2021, <a href="https://www.itweb.co.za/article/samsung-in-green-push-for-tv-line-up/xnklOqzLgx974Ymz">Samsung announced</a> that its TV business was on a journey of “going green”. Among the action points was the introduction of solar-powered remote controls that, according to the company, could help prevent waste from 99 million AAA batteries over seven years. Another example is <a href="https://www.theverge.com/24206847/logitech-ceo-hanneke-faber-mouse-keyboard-gaming-decoder-podcast-interview">Logitech’s plan</a> to reduce its carbon footprint by half, including the introduction of long-lasting hardware like the “forever mouse” concept.Despite all the nice talk and good intentions, the electronics industry in general, and the IoT and small electronics segment in particular, is facing strong challenges with sustainability. The industry still relies on raw materials that are highly polluting (e.g. heavy metals in batteries) and greenhouse gas-intensive (e.g. conventional printed circuit board laminates), and their replacement is quite challenging from technical and cost perspectives. A resolute stab at sustainability requires looking into every single component of an electronic system and the whole system’s life cycle. The market actors that do not take this seriously risk being severely penalised by customers and consumers, who are increasingly awake to signs of frail ESG policies and greenwashing.<h2>Energy harvesting gaining momentum</h2>A growing number of IoT-connected devices, including the ones with low-power consumption (1 micro Watt to 1 milli Watt range), continue to rely on disposable or rechargeable batteries. Yet, batteries are far from being a good solution for powering small electronics, especially single-use coin cells or alkaline power cells typically used in such devices. Small devices reliant on batteries are a problem for several reasons. On the one hand, the limited lifespan of batteries and the high costs and burden associated with battery replacement and device maintenance can become a logistical nightmare in very large distributed node systems. On the other hand, the social and environmental problems associated with the lifecycle of batteries and respective raw materials such as <a href="https://www.onio.com/article/environmental-cost-of-batteries.html">lithium and cobalt</a>. In a nutshell, batteries are bound to represent an apparent bottleneck in the massive deployment of IoT devices and a huge environmental problem. Therefore, it becomes clear that players serious about sustainability must look into batteries and consider better alternatives whenever possible.&nbsp;That’s where <a href="https://www.onio.com/article/ambient-energy-world-of-iot.html">energy harvesting</a> comes into play. The market arena for energy harvesting, aka <a href="https://www.bluetooth.com/wp-content/uploads/2024/01/MRN_Ambient-IOT.pdf">Ambient IoT</a>, is growing in importance. The use of energy harvesting for small electronics is not entirely new. For instance, portable electronic devices such as calculators and watches powered by small photovoltaic panels were popular during the 1980s and 1990s. Yet, that trend did not pick up, and batteries have taken over the business of powering small portable electronics almost entirely. Now, the growth of the IoT together with technical progress in ultra low power electronics and ambient energy harvesting are providing a new opportunity for energy harvesting.&nbsp;The emergence of new ultra low power microchips, such as <a href="https://www.onio.com/products/onio-zero.html">ONiO.zero</a>, and new harvesting technologies, such as <a href="https://www.epishine.com/">Epishine</a>’s very efficient photovoltaic cells, are revamping the interest in energy harvesting. Early examples of use cases include asset tracking, condition-based monitoring, cold-chain monitoring, building automation and home control. The total market opportunity is <a href="https://www.bluetooth.com/wp-content/uploads/2024/01/MRN_Ambient-IOT.pdf">sized at trillions of units</a>.<h2>A change in mindset: electronics design for energy harvesting</h2>The design and development of electronic devices for energy harvesting requires a fundamentally different approach than the usual development for battery power. Energy harvesting typically generates only minimal amounts of power, meaning that the electronic circuits and systems must be tuned for extreme power performance and flexibility. Besides, ambient energy is often available in variable levels and intermittent modes. For instance, light levels are variable in most environments, and the same goes for radio frequency sources, depending on proximity to antennas, routers, mobile phones, etc. Hence, power management strategies must be designed for intermittent energy availability. Summing up, the electronic systems must be capable of harvesting under the most demanding conditions (e.g. very low light or weak radio frequency sources), run from ultra low power levels, store and manage any excess energy in the best way possible. By the same token, energy budgeting and duty cycle planning are keystones for seamless batteryless operation from ambient energy - emphasizing the importance of a crystal clear understanding of the requirements for each application and use-case.As a minimum, a functional energy harvesting device/system needs the following building-blocks: (1) one or more energy harvesters, harnessing ambient energy from light, radio frequency, motion or thermal gradients; (2) integrated circuits for control, processing and communication; (3) an energy storage/buffer element; (4) the load(s), i.e. the element(s) being powered, which may include sensors, transmitters, controllers, etc. These and a few additional auxiliary components must be mounted on an electronic printed circuit board (PCB). The SELECT project focuses on each of these elements and their seamless integration for deploying sustainable electronics with energy harvesting.<h2>The SELECT project</h2>The SELECT project brings together six partners on the quest for sustainable electronics. The project is co-financed by the <a href="https://eurekanetwork.org/programmes/eurostars/">Eurostars program</a>.ONiO leads the way with its ultra low power microcontroller tailored for energy harvesting, <a href="https://www.onio.com/products/onio-zero.html">ONiO.zero</a>, at the core of the project. <a href="https://www.onio.com/products/onio-zero.html">ONiO.zero</a> combines an <a href="https://www.onio.com/article/onio-riscv-coremark-results.html">ultra power-efficient RISC-V CPU</a> with an advanced power management integrated circuit (PMIC) and wireless radio communication on a single microchip. Epishine provides highly efficient and versatile printed organic photovoltaic cells optimized for indoor conditions, which are <a href="https://www.epishine.com/technology/lca">best-in-class with respect to sustainability</a>. <a href="https://www.lignaenergy.com/">Ligna Energy</a> owns unique supercapacitor technology that leverages bio-based sustainable materials and roll-to-roll manufacturing methods for green, safe and ultra-thin energy storage. <a href="https://www.jivamaterials.com/">Jiva Materials</a> offers Soluboard®, a fully recyclable and biodegradable rigid PCB laminate with a 67% lower carbon footprint than glass-fibre and epoxy technologies used in conventional FR-4 PCBs. These four partners put in the key ingredients for the SELECT recipe. The consortium is complemented by two end-user partners: <a href="https://www.pricer.com/">Pricer</a>, a partner for in-store communication and digitalization and a leading supplier of Electronic Shelf Label (ESL) solutions, and <a href="https://www.4modtechnology.com/">4MOD Technology</a>, a versatile company specialising in the design and engineering of remote controls and IoT solutions.The team will tune each of the key ingredients (microcontroller, photovoltaic harvester, supercapacitor, Soluboard® PCB), focusing on solving the challenges involved in their orchestration to work optimally together. These components are already available now, but their combination brings benefits to the next level. The project will generate reference boards and development kits combining these key elements - i.e. forming a SELECT platform ready to use in the development of a new order of sustainable IoT and small electronic products.The new SELECT platform will be able to serve a wide range of applications across the IoT and small electronics market verticals. During the project, the partners will focus on two lead applications: ESLs, under Pricer’s leadership, and remote control units, headed by 4MOD Technology. The key outputs of the project will include reference designs and prototypes customised for these two demo cases. But the SELECT platform will be ready to target an array of additional product categories, with a view to fast-tracking energy harvesting-based solutions to real market products that can effectively compete with the current battery-based standards.SELECT is using some of the most sustainable components available, with benefits in toxicity and contamination of the environment and particularly in carbon emissions. A back-of-the-envelope calculation shows a potential for saving at least 150.000 tonnes of CO2 equivalents per year if the SELECT solutions were rolled out across the ESL and remote control markets (estimated at 300 and 400 million units per year, respectively). This is the equivalent of taking over 100.000 combustion engine cars off the streets. These savings were estimated from removing single-use batteries and using photovoltaic harvesters instead, plus replacing FR-4 PCB with Soluboard®. The SELECT project includes systematic Life Cycle Analyses where the environmental benefits will be studied in detail and computed in a proper manner. In any case, looking at these ballpark calculations for the two test cases only, and considering the total space of applications that can be targeted by SELECT - extending from industrial IoT sensors to building automation, electronic tags and trackers, wearables, etc. - the extent of the project's impacts can be massive.<h2>Conclusion</h2>The tools to make IoT and small electronic devices way more sustainable are already on the table today. But we need to move from individual eco-friendly components to systems fully orchestrated to work optimally with more sustainable options such as energy harvesting. The added value of the SELECT solutions lies in the seamless integration of sustainable building blocks to craft an electronics development platform built with a 360º view on sustainability, from individual components to system level.&nbsp;Besides focusing on performance and sustainability, the SELECT platform will enable the deployment of very cost effective products and systems, especially when considering system bill-of-materials and lifetime costs. By removing batteries and simplifying electronic systems, SELECT will reduce the component count and footprint of electronics, with a positive impact on costs. Hence, SELECT will bring unprecedented possibilities in terms of thinness, material minimization and low cost of end devices. Moreover, with no battery changes, maintenance and lifetime costs will be much reduced, bringing logistics and cost benefits for the end users. Finally, for many product categories, the device’s lifetime will be extended and costs with end-of-life, namely recycling, will also be reduced.The SELECT partners' ambition is bold: mastering energy harvesting while redefining electronics with sustainability at the core. Power is on!

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Sustainability is taking centre stage in many business sectors and the electronics industry is no exception. Yet, when we look deep into the newest electronic devices around us, are these really fundamentally more sustainable than the ones we were used to 10 or 20 years ago? In this article, we will look into how to make IoT and small electronic devices more sustainable, namely through energy harvesting. In doing that, we will introduce the SELECT project, where ONiO and a group of strategic partners are bringing together unique building blocks to enable a more sustainable future for electronics.

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Sustainable electronics disentangled

Senior Project and Innovation Manager

Pedro Guimarães

ONiO is an IoT company specializing in crafting self-powered microcontrollers that run on nanowatts harvested from their surroundings.

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ONiO is a fabless IoT company specialising in batteryless microcontrollers that run on energy harvesting. We are deeply committed to crafting viable clean-energy solutions for IoT devices, breaking them free from the battery. ONiO.zero can use virtually any RF, thermal, solar, piezo signal as a power source. 

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 The power of Zero is undeniable The people behind ONiO Kjetil Meisal Vemund Bakken Runar Finanger Ronan Barzic Related Pages Products Articles The Big Picture The Team 
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                            With billions of IoT nodes and sensors set to power our future, reducing dependence on disposable batteries is critical. ONiO.zero-based solutions make IoT smarter and greener by enabling sustainable designs that minimize waste and unlock new possibilities. Together, we can create a future where innovation and environmental responsibility go hand in hand.
                         We envisioned an IoT future where power solutions are smarter, more sustainable, and designed to meet the needs of tomorrow. That’s why we created ONiO.zero—a microcontroller that can run 100% on energy from its surroundings. Whether you’re designing battery-free solutions or dramatically extending battery life, ONiO.zero delivers unmatched efficiency with zero compromises.

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Join our team of innovators  Join our team of innovators Grow with us At the cutting edge of engineering. Disruption guaranteed. Related Pages Careers Articles Careers Working at ONiO  ONiO’s team is home to some of the brightest engineering minds in the semiconductor industry.When you work at ONiO, you are going to be rubbing shoulders with some of the biggest talents in the space. Have you always wanted to be a part of something truly exciting? Something that touches real lives?When you work for ONiO, you join a team that’s on the vanguard of the next tech revolution. And what’s more, we’re one heck of a riot to roll with. We are thrilled to welcome future employees to apply for a job and pursue a career at ONiO. You will have the chance to learn from true innovators, work in a dynamic environment and with unique technology that will add comfort and safety to everyday lives. We encourage you to explore our current openings and career opportunities! Fancy pursuing a career at ONiO? We are thrilled to welcome your applications. You will have the chance to learn from true innovators and work in an exciting and diverse environment. If the idea of working with technology that will add comfort and safety to everyday lives tickles your fancy, feel free to check out our openings! ONiO’s team is home to some of the brightest engineering minds in the Semiconductor world and so much more.

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Get clued in Your Power Your Choice Smaller Bill Of Material Power Freedom.  Zero maintenance.   IoT Unleashed Power Independence for a connected world. What's next?  Energy Harvesting Everything IoT About ONiO Join us ONiO - Power your way! Get started The lowest power MCU - 22µW/MHz Join our team of innovators Invest in us Learn More  ONiO.zero is an easy to use wireless microcontroller that works with any power source - from ambient energy to batteries. That's what we call power freedom. Instead of playing with pennies - we turned to the dollar. We integrated radio, mcu, memories and PMIC in a single package.  Slash maintenance costs with battery-free operation or extended battery life. Now that's something your customer wants to hear. IoT liberated from power constraints. Whether battery-free or ultra-long battery life, there's no limit to where IoT can go. ONiO.zero is the world’s first wireless microcontroller designed for total power flexibility — from energy harvesting to ultra-low-power battery operation.

ONiO is a fabless IoT company specializing in batteryless microcontrollers that run on ambient energy. ONiO.zero can use virtually any RF, thermal, solar, piezo signal as a power source. Our aim is to unshackle one IoT device at a time from the battery, en route to a 100% battery-free IoT future. Our product offers manufacturers a more minimalist, user-friendly, economical and environmentally sustainable power solution for IoT devices. 

 Looking for a green deal? Our valued partners Q1 2017 Q2 2018 Q3 2021 2025 Domain experts Devoted and engaged Related Pages About Us Products Invest in us Engage with ONiO Funding Timeline Register your interest Who are we looking for ? [object Object] Brilliant minds and good ideas need to come together if we are to solve big problems. We understand this! We respect and value the domain expertise and industry experience that an investing partner will bring to the table. When you invest in ONiO, you are not just investing in our product but in us. As an investor, you will be an integral part of the ONiO family – your strategic inputs, network, industry expertise and passion for what we’re doing will be welcomed and cherished.

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Our team includes some of Europe’s brightest minds, all geared up to tackle the big sustainability challenges in the electronics industry with cutting-edge tech and green solutions. Here’s a shoutout to our incredible partners:<ul><li><a href="https://www.onio.com/">ONiO AS</a> (Norway): Leading with ultra-low power microcontrollers for energy harvesting.</li><li><a href="https://www.epishine.com/">Epishine AB</a> (Sweden): Organic photovoltaics optimized for indoor light.</li><li><a href="https://lignaenergy.se/">Ligna Energy AB</a> (Sweden): Innovating eco-friendly supercapacitors from renewable materials.&nbsp;</li><li><a href="https://www.jivamaterials.com/">Jiva Materials Ltd</a> (UK): Crafting fully recyclable and biodegradable PCB laminates.&nbsp;</li><li><a href="https://www.4modtechnology.com/">4MOD Technology SAS</a> (France): Developing next-gen remote controls.&nbsp;</li><li><a href="https://www.pricer.com/">Pricer AB</a> (Sweden): At the forefront of innovation with electronic shelf labels (ESL) that enable automated, real-time price updates, boosting efficiency and accuracy for retailers.</li></ul><h2>Project Overview and Goals</h2>The SELECT project is all about creating a new, scalable platform for energy harvesting (EH) using sustainable electronic components. Here’s what we’re cooking up for the platform:<ul><li>Utilizing the ONiO.zero microcontroller tailored for extreme low power and EH (ONiO).</li><li>Modules for EH from radio frequency (ONiO) and photovoltaics (Epishine).</li><li>A bio-based supercapacitor (Ligna Energy) for energy storage.</li><li>A fully recyclable and biodegradable PCB laminate (Jiva Materials).</li></ul>This platform is designed for a bunch of IoT and small electronics applications, kicking off with electronic shelf labels (ESLs) and remote controls. We’re tackling the industry’s reliance on polluting materials and greenhouse gas-heavy processes, offering a truly sustainable alternative for self-powered electronics. &nbsp;<h2>Why This Matters</h2>The electronics industry, especially the IoT and small electronics segment, is grappling with huge sustainability issues. Traditional solutions rely on disposable or rechargeable batteries that are pricey, high-maintenance, and bad for the environment. SELECT aims to ditch these for energy-harvesting tech that draws power from ambient sources like light and radio frequencies. By eliminating batteries, SELECT plans to slash the environmental footprint of electronic devices, from production to disposal. It’s not just about high-tech; it’s about a greener, more sustainable future for electronics.<h2>Customer Cases</h2>The SELECT project is all set to show off its potential with two exciting customer cases:<ul><li>Electronic Shelf Labels (ESL): Pricer AB is at the forefront of innovation with its electronic shelf label (ESL) solutions, enabling automated and real-time price updates without the need for manual intervention. These cutting-edge ESLs offer retailers a seamless and efficient way to manage pricing dynamically, improving operational efficiency and ensuring accuracy across all product displays.</li><li>Remote Controls: Have you ever dreamt of a remote control that never needs battery replacements? 4MOD Technology SAS is making that a reality with their next-gen remotes powered entirely by ambient energy. Say goodbye to hunting for batteries and hello to a sustainable future.</li></ul><h2>Economic and Environmental Impact</h2>This grant is a massive boost, helping us and our partners push the boundaries of sustainable electronics. SELECT promises:<ul><li>Reduced Environmental Impact: Using renewable materials and sustainable processes, we’ll cut down the environmental impact of electronic components.</li><li>Cost-Effective Solutions: Offering top-notch technical performance and sustainability, while staying competitive with conventional alternatives.</li><li>Market Growth: Boosting market prospects and sales for all involved, creating synergies and growing the energy harvesting market.</li></ul>We want to extend our heartfelt thanks to the <a href="https://eurekanetwork.org/programmes/eurostars/">Eurostars program</a> for the support. This initiative is vital for fostering innovation and sustainability in the tech industry.Stay tuned as we embark on this exciting journey towards a sustainable future in electronics. We’ll keep you updated on our progress through regular updates on our website and social media channels. Follow ONiO and our partners for more updates on the progress of the SELECT project.

ONiO, along with an elite group of innovators, has secured a sizable grant for our SELECT project (Sustainable Electronics for Energy Harvesting Applications). This game-changing project is directed towards developing a scalable platform for energy harvesting applications using sustainable electronic components. The total project cost is a whopping €3.1 million! 

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ONiO secures major Eurostars grant to revolutionize sustainable electronics with energy harvesting.

Remote Control Energy sources Right as rain, safe as houses A Zero-compromise user experience Ultra-low power requirement All the frills and thrills - IR diode support Future proof flexibility Pulse density modulation interface (PDM) Capacitive touch Button key scanner Accelerometer Reference Design Want to talk? Watch Video Introduction Visit the ONiO.zero page Energy Harvesting Reliability User Interfaces Contact us for more information Watch Video The remote as we know it is a dinosaur - ancient technology! Today, with energy harvesting, the pain of charging and replacing batteries is history! Our surroundings are rife with potentially usable energy that we can harness and store. Energy from WiFI AP, mobile phones and other dedicated terrestrial RF energy sources supplies enough power for the remote to operate. At the heart of our smart remote solution is ONiO.zero - a batteryless wonderchip that runs on ambient energy! The best part, fewer batteries are thrown away in landfills. What's more - super-tiny photovoltaic cells could be used in tandem to make sure you never run out - Given typical light conditions, you could power your remote for eternity - no replacements, no nothing! RF fields between 650MHz and 2.4GHz.Any source between 350mV and 4V that produce 5-10μA). E.g. PV/Solar, thermal and motion.  ONiO.zero implements a low power PDM interface for interfacing low power microphones. The supported sampling speeds are 300kHz to 12MHz with support for fractional bitrate. The capacitive touch engine does not require any internal oscillator to run and is fully self-clocked. This means that it’s extremely low power and can asynchronously wake the rest of the system up. True wake on touch! Supports 8 rows and 8 columns making for a total of 64 buttons. Runs on an ultra low-power oscillator. Any keypress wakes up the CPU. FIFO (First in First out) of last 8 key presses. A low power SPI and two-wire interface are implemented for efficient interfacing with an accelerometer. The data from the accelerometer can be classified by ONiO.zero into gestures. Drained batteries and interruptions are best left in the past! With just a little ingenuity, we can design batteryless solutions that, well, just make more sense! Energy has to be present when the remote is in use. By utilising both RF and PV cell harvesting the remote will constantly be charging - even when its stuck between your sofa cushions. We took a novel new approach to low-power. We designed for nano-watt operation - not milli- or microwatts from day one. This has resulted in a framework that allows applications using a battery today - remove them tomorrow. We have to acknowledge that most remote controls today still utilise infrared communication. That's why we added a dedicated hardware module for carrier generation and modulation of IR diodes. A modern remote control is meant to be user-friendly and flexible. ONiO.zero supports multiple user interfaces - so you’re never caught off guard - whatever your device or need, we’ve got you covered.

A real smart remote solution runs on ONiO.zero - a batteryless wonderchip that feeds on ambient energy! Best part, no more annoying broken battery lids!

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