Introduction to IoT
Karel Slavicek
Vaclav Oujezsky
2024
Course outline
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Aim and goal
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Lecture organization
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Evaluation
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Managerial stuff
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Content and scope of the course
Aim and goal
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Understand IoT systems architecture
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Overview of commonly used IoT systems‘ HW
components
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Basic knowledge of communication busses and
protocols commonly used in IoT systems
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Overview of cloud-based IoT support
Prerequisities
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Basic knowledge of
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computer architecture
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operating systems
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OS Linux
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ABC of programming in C/C++
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Minimal knowledge of physics and measurement is an
advantage
Course organization
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Focus on lab exercises and hands-on experience
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Lessons to give an overview
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In average 1 lesson covers 2 lab exercises
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Minimizing the obligatory stuff
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Flexibility in lab design
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KYPO lab MS-Windows stations or BOYD laptops
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Basic set of modules part of the planned labs, more modules
available
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Extension to bachelor thesis upon request
What Introduction to IoT is About
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Basic properties and interfaces of common sensors
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Basic properties and interfaces of common HMI devices
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Overview of available MCUs from SW point of view
(IDE)
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Overview of both internal and external busses
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Interface to cloud applications
What Introduction to IoT is NOT About
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Physics of the sensors
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Department of physics at Faculty of Sciences
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Electronics design
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Faculty of Electrical Engineering and Communication
Technology
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Sensors with analog output
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Too close to the physics
Course organization
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Focus on hands-on experience on HW and SW
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10 + 1 lab exercises
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5 + 1 lectures
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Free labs or invited lectures in remaining timeslots
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Content not strict, will be influenced by your feedback
Lecture
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5 topics + introduction
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IoT peripherals connected via GPIO
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IoT peripherals connected via a standardized interface (I2C,
SPI,…)
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Interconnection of IoT nodes (RS-485, MODBUS, CANBUS, …)
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Linux-based IoT nodes
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Data presentation (MQTT, Grafana, …)
Lab exercises
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10 labs (2 per topic) + 1 introductory
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No soldering or pin-by-pin cabling needed
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Standalone projects for colloquium
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All necessary SW installed on PCs in KYPO, students’
own devices supported as well
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Detailed overview of available HW in lab exercises
Lab exercises
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KYPO lab – room S108
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Access controlled
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KYPO is a lab → no food and drink allowed inside
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Physical management of lab equipment still under
development → good ideas welcome
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Free openlab days will be managed near end of the
semester
Lab exercises
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Room for lab exercises accupied by other event from
time to time – reschedule or cancelation needed.
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Schedule irregularities will be announced by e-mail,
please chct your e-mail regularly.
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Number of participants on lab exercise limited by room
size and number of equipment.
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Moving between lab groups allowed upon mutual
agreement of students.
Studying material
Available on the web (is.muni.cz)
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Slides from presentations – commonly after the lesson,
slides are still under development
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IDE and supportive SW
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Sample code
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Description and schematics of used HW will be
supplemented step by step
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A lot of examples on Internet
Evaluation
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Colloquium
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Standalone project optionaly solved in groups
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Projects will be discussed during the colloquium
The overall course organization
Any questions / comments / requirements ?
Introduction to IoT
What is it the IoT ?
Structure of an IoT System
Elementary sensors
Application / Cloud
MCU / CPU / Communication
Structure of an IoT System
Elementary sensors
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Push buttons and switches
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Rotary encoder
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Environment sensing (Temperature, Relative Humidity,
Barometric pressure)
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Proximity
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RFID/NFC card readers
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Fingerprint scanners
Output devices
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LED diodes and 7-segment displays
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LCD displays
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OLED
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TFT and capacitive touch screens
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E-paper
Local Data Storage
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uSD
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EEPROM
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FLASH
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eMMC
Internal busses
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I2C
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SPI
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1-Wire
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UART
MCUs and Singleboard Computers
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Bare metal programmable
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ARM Cortex M – STM32, EFM32, ...
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AtMega (Arduino)
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AtTiny
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MSP430
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ESP-32
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Singleboard Computers
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Raspberry Pi
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Rock Pi
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Orange Pi
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Anything Pi
External busses
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RS-485 / MODBUS
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CANBUS
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M-Bus
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FlexRay
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UART
Wireless communication
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WiFi
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Bluetooth
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Sub-GHz wireless – 868MHz / LoRa, 433MHz / SigFox, …
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InfraRed communication
Communication busses
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Similarity with data networks
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Multiple layers: RS-485 / MODBUS
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Similarity with ISO-OSI reference model
Cloud oriented services
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MQTT broker (JSON format)
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Grafana
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Virtual servers at Stratus.fi.muni.cz
Introduction to IoT
MCU / CPU / Communication
Elementary sensors
Application / Cloud
Thank you for your attention!
Questions and comments?