Content

KeyNote 1
Embedded Systems
Transforming (with) Arduino 
Fabio Violante, Arduino.
Arduino is the most popular open source hardware platform on the market. It is widely used on a global scale by millions of users, educators and businesses, not only for rapid prototyping purposes but also as a production platform directly or through derivative products based on Arduino designs.
A few years ago Arduino started a journey with substantial investment in R&D to transform itself into a solid framework that can be used for multiple applications, ranging from IoT to ML and AI, by leveraging strategic relationships with advanced technology providers in the ecosystem. The emphasis of the efforts has been not only on the hardware side but also on cloud based tools and services to provide a holistic environment with the aim of “making complex technology simple to use”.
SESSION 1
Embedded Systems
Introduction to STM32duino and Arduino libraries for ST components
Carlo Parata, STMicroelectronics.
Open Development Environment (ODE) is the open market initiative promoted by ST with the aim to create a simplified and complete hardware and software offer for the fast prototyping of an embedded system.  STM32duino is one of the development environments supported by ODE that makes possible to get a program running on a STM32 Nucleo board using the Arduino IDE. The microcontroller functionalities can be extended using the Arduino libraries for ST expansion boards. Thanks to the simplicity of the Arduino framework it is possible to dramatically lower the entry barrier traditionally present in embedded system designs and demonstrate a real IoT prototype combining the usage of a STM32 Nucleo board together with several sensors and connectivity shields.

Runtime Design Space Exploration and Mapping of DCNNs to Hardware Accelerators
Cristina Silvano, Politecnico di Milano.
Recent trends in Deep Convolutional Neural Networks (DCNNs) impose hardware accelerators as a viable solution for computer vision and speech recognition.In this talk, we propose a runtime design space exploration and mapping methodology for runtime resource management in terms of on-chip memory, convolutional accelerators and external bandwidth. Experimental results are reported in terms of power/performance scalability, Pareto analysis, mapping adaptivity, and accelerator utilization for the Orlando SoC from STMicroelectronics mapping the VGG-16 and Tiny-Yolo topologies.

IOTA Distributed Ledger Technology for STM32-based IoT Devices
Antonio Vilei, STMicroelectronics
IOTA’s Distributed Ledger enables peer-to-peer microtransactions, allowing people and machines to transfer money and/or data without any fees in a trustless, permissionless and decentralized environment.
The X-CUBE-IOTA1 project provides the basic building blocks to use IOTA’s Distributed Ledger Technology with STM32, a market leading microcontroller with a rich and vibrant ecosystem, making it possible to bring the advantages of IOTA to embedded systems and Internet of Things devices, opening up new business models around data ownership and distributed microtransactions.

Transparent and future-proof security for IoT
Gerardo Pelosi, Politecnico di Milano
The significant benefits of a pervasive deployment of computing devices, known as the Internet of Things, come with the need of of dealing with the different aspects of cybersecurity on all of them. This talk will provide an outlook on the challenges of providing user-transparent security guarantees on platforms with relatively tight cost and resource constraints, and long expected lifetime. Current research and development directions on the solutions for the IoT security will be delineated.


SESSION 2
MEMS TECHNOLOGY
Recent advances of MEMS technology, devices and systems at PoliMi
Andrea Lacaita, Joint Research Center ST – PoliMI
In 2018 a new Joint Research Center has been settled between PoliMI and STMicroelectronics. The activities are covering design and dynamics of MEMS, integration of multifunctional materials into silicon devices, design and characterization of microsystems including the integrated mixed-signal electronics needed for proper signal processing and control, as well as the development of components and systems for power conversion. An advanced equipment for 3Dprinting has been recently located in the PoliFAB clean-room to support the development of future 3D microsystems. The fabrication of a first MEMS resonator has been proved, thus demonstrating the capability to provide MEMS fabrications technologies to all PoliMI researchers. The initiative is building up both a multidisciplinary research environment around smart sensors and advanced technology platforms covering from device proof-of-concept fabrication to microsystem delivery, which are available to all PoliMI researchers.
3D Sensing: applications, technologies and researches
Daniele Caltabiano, STMicroelectronics
Capability of sensing 3D shape of environment can be accomplished thanks to several mature technologies (e.g. stereo vision, structured light, time of flight) and is already used in many applications. For example, in some modern smartphones it is used for unlocking the device by means of robust face recognition. In the industrial field it is used for quality inspection, during production, or for accurate positioning of object parts to be assembled. 3D sensing is also one of the main technologies for autonomous vehicles, virtual and augmented reality, advanced human machine interfaces, environmental mapping and monitoring and many more applications will be designed as soon as price, size and power consumption of such technology will lower down. ST is a key player in this field, recognized for some innovative products and continuously investing in new technologies and sensor systems. I will start this talk presenting some applications, showing also the related requirements, then I will give an overview of the main technologies and finally I will present what ST is doing in this field.

Structural Health Monitoring: a cross point among different cultures
Alfredo Cigada, Politecnico di Milano

A heterogeneous group of researchers, characterised by highly diversified skills, has been working on the development of monitoring systems for early detection of structural damage.
This research testifies an ongoing revolution in the way structures can be kept under control but it is not limited to this field. The same approach can be applied in the industrial world.
Results of a five years long project will be summarized including development of new sensors and data collection systems up to the cloud, but also a new cultural approach will be emphasized that aims at protecting our infrastructure.

Methods for Measuring Time-of-Flight with Piezoelectric Micromachined Ultrasonic Transducers
Marco Passoni, STMicroelectronics
Piezoelectric Micromachined Ultrasonic Transducers (PMUT) are MEMS devices which are capable to generate and sense an acoustic wave by means of the flexural motion of a thin membrane with a piezoelectric stack on top. Thanks to their small size and low-power, they are promising for many applications ranging from imaging to gesture recognition, obstacle detection, mapping, flow-metering. Since they have different features with respect to the standard piezoelectric-bulk transducers, the standard driving/sensing methods are not exploitable.
Focusing on the basic building blocks for airborne applications (e.g. time-of-flight measure), we developed a custom platform comprising hardware, firmware and algorithms, which implements a novel measuring method based on real-time frequency tuning and reference echo synthesis

Sleep monitoring systems in home environment
Valeria Radicioni, STMicroelectronicsThe increasing number of deaths due to cardiorespiratory diseases turned out the needing of a monitoring of vital signs, such as heart and respiratory rates in order to detect abnormalities in an individual’s health.
Our studies focus on monitor the heart and respiratory rates during the night, using a bed-based system and which is based on the ballistocardiographic (BCG) principle, and to detect sleep related disorders (apneas) thanks to a little device equipped with several sensors (PPG – photopletismography, humidity and microphone) which is wearable, non-invasive, low power and reliable in detecting apneas in a home environment.