Julien Holtzer
Maker, IoT & robotics expert, Arduino & ESP32 coder. FabLab co-founder in Sophia Antipolis, France.
Arduino from Uno to Hero
@JulienHoltzer @SoFABbyTV
2024 - 2025
Tell me about you
My awesome hobby...
My dream for the future...
In my toolbox...
Goals & expectations
Two months ahead
Understand hardware electronics
Be autonomous to find solutions
Identify possible issues and constraints
Get new ideas for future projects
Do you Arduino ?
http://www.pobot.org
http://www.sofab.tv
What is Arduino ?
Electronics, design, DIY, open source, tinkering, IoT
Disruptive technologies
From smartphone to iPhone
From stylus to Pencil
From microcontrollers to... Arduino
Open Source & Do It Yourself
Free designs
Open hardware
Open Washing machine
Low code software
Arduino Heroes
Massimo Banzi
Limor Fried
Axelle Ferry
arduino.cc
adafruit.com
youtube/heliox
1. How do you Arduino?
Hardware & software
How to power, how to connect
Components
101. Arduino hardware(s)
Cinque : RISC-V
Beatle
102. Software(s)
Processing (P5) : same IDE
Standard IDE for Arduino
Other Arduino IDE
ArduBlock : assemblement puzzle
approche dite "low-code"
Arduino Cloud : programmation en ligne
pour installer le minimum sur PC
et bien d'autres : Platform.io, Visual Studio...
103. Connect & power
USB : power / program / communicate
Serial : communicate / (program)
Wifi : communicate / (program)
Bluetooth : communicate
Ethernet : communicate / power
Wall mains : power
Batteries : power
and many others...
104. Sensors
Analog inputs
Digital inputs (TOR : "tout ou rien")
IC : integrated circuits
105. Actuators
Servomotors, stepper motors, DC motors, solenoids
Lights & displays
Buzzer, speakers
Sound & music synthesizers
106. Protocols & signals
Courage !
Arduino is a simple tool
Identify all possibilities
Test and fail to adapt
Try and repeat
2. Set up basics
201. LAB "Just blink !"
- Open IDE
- Select board & Select USB
- Load example Blink
- Upload
- Observe
202. What just happened ?
-
Cross compilation : develop on your PC but code for a target hardware
- From code to machine language : C++ language converted into binary
-
Bootloader : using USB link to open serial communication with Arduino
- Memory : storing the binary in a long-term memory that can be executed
- Execution : start / setup / loop
203. Ohm, Volt & Ampere
- Voltage : U = 2,2 volts in a led
- Current : I = 20 mA maximum
- Resistance : R = ?
Formulas : U = R x I / P = U x I
Power in the led : P = 44 milliwatts (mW)
Needed resistor : R = (5-2,2) / 0,02 = 140 Ohms
204. GPIO, your best friends
- General Purpose Inputs Outputs
- Input : digitalRead, analogRead
- Output : digitalWrite, analogWrite (?)
-
HIGH / LOW : 5V / 0V ? Not so simple !
- Pull-up resistors : digitalWrite on inputs
- Non-general purposes : SPI, I2C, UART, 1-wire, ...
204. Not only GPIOs
205. LAB "Hello World"
- Open IDE, select board & USB
- Setup : Serial.begin(9600);
- Loop : Serial.println("Hello, World !");
- Program
- Open the console & observe
206. Talking things
USB : Serial, MIDI, keyboard, mouse, ...
Serial : RX TX, UART, SPI, I2C, 1-wire, ...
Wireless : Wifi, Bluetooth, ZigBee, BLE, GSM, 5G, satellites
3. Board & electronics
- Identifying and understanding parts
- Discovery of a hardware lab
- Designing a new prototype
- Learning curve
301. Show & Tell
Memory
CPU
GPIO
Clock
Power inputs
Buttons
Connectors
Leds
302. LAB "hardware"
Discovery of hardware tools
Soldering or not ?
From tinkering to prototyping
Embedded electronics, boxes & cases
303. Design your idea
What could be made with the components
How much does it cost : buying & running
Impact for production / manufacturing / usage / recycling
Energy & IT costs : designing sustainable solutions
304. Find solutions
Design hardware as a puzzle of hardware components
Design software as services for users
305. Learning curve
The "hype cycle" may be applied to electronics discoveries
306. Experimentations
307. Improve until success
PDCA methodology
Analyze and learn
4. From zero to Uno
401. Keep calm and think
-
Prepare : identify components
-
Do : connect circuit and write software
-
Control : check if it works
-
Act : find solutions for next try
402. LAB "Sparkling"
Change blink with different delays
and change outputs
403. Inputs with dimmer
Analog vs Digital
Potentiometer
404. LAB "Light show"
PWM & LED fading
405. Physical sensors
LDR sensor
IR sensor
406. LAB "nature connection"
switchs, movement, collisions
Congratulations !!!
You have reached the objective
5. Visual programming
6. Cloud & IoT
7. Your own project
Design
Solutions
Experimentation
Next steps...
Evaluation
https://forms.gle/6GHF2xN3P8cb7JYx8
You are a Hero of Arduino !
Understand electronics
Identify components
Tinker prototypes
Write software in C++
Design IoT solutions
8. The Arduino way for Artificial Intelligence
AI is all about data and computations
- Data analysis that humans cannot handle: volume, velocity, variety, veracity
- Fast identification of current events: classifications and reactions
- Predicting the future based on the past: decision-making
- Generating content to fill in the gaps: text, images, videos
Arduino is both a data provider and a computer
Distributed computing
From "anytime" (always on)
to "anywhere" (ubiquitous)
CLOUD
EDGE
Do you speak AI ?
If you don't speak Arduino language fluently... AI do !
That's all folks !
Arduino : from Uno to hero
By Julien Holtzer
Arduino : from Uno to hero
Découvrir Arduino, pratiquer et prototypes, coder et designer.
