Internet of Things #1: Basics Sasnauskas, Swedbank

1. Internet of Things #1
Basics
Sasnauskas, Swedbank
* Objectives
* Questions

2. Early Beginning…

3. 1st Raspberry Pi
2014 03

4. You should do It !
Open Source
Lots of Colleagues already doin’ it
We Love engineering (+ Mechanical Sympathy)
Constant Trend
Physical IT
Inspire ones around
Home Security
Saves $$

5. Internet of Things (IOT) ?

6. Board Types
Raspberry Pi
Arduin
ESP8266
ATTiny85

7. Raspberry Pi (SBC)
Raspberry Pi (35 GBP)
Bananna Pi
Pi Zero W
Beagle Bone
Odroid C..
…

8. 50% of RaspBerry price…
DC and SD card

9. Raspberry cases

10. GPIO

11. Hi-Low
LED example

12. PWM

13. One Wire

14. SPI

15. I2C #!/usr/bin/env python from ina219
import INA219
SHUNT_OHMS = 0.1
MAX_EXPECTED_AMPS = 0.2
def read():
ina = INA219(SHUNT_OHMS, MAX_EXPECTED_AMPS)
ina.configure(ina.RANGE_16V)
print "Bus Voltage: %.3f V" % ina.voltage()
print "Bus Current: %.3f mA" % ina.current()
print "Power: %.3f mW" % ina.power()
print "Shunt voltage: %.3f mV" % ina.shunt_voltage()
if __name__ == "__main__":
read()

16. Arduino family
Uno
Nano
Mega
Pro
- 6-12V. And ways of powering
- Analog Read
- Strong Community
- Simple to make one Yourself

17. Arduino IDE
C
C++
Serial Monitor (Plotter)
Multi Boards
Libraries
Examples !

18. Button
Simple
Capacitive
Super Mario game on Youtube
By using Plums as Buttons

19. STM32 (Blue Pill)
AliExpress ~1.5 USD
10bit resolution AnalogRead()
Burn program via FTDI

20. Analog Read
Designed in Lithuania

21. ESP8266/ESP32/Wemos
ESP8266
ESP32
Node MCU
Wemos Electronics
Arduino IDE compatible
MicroPython
Can be a web server
Memory 1 - 8 - 16 MB
(board with WiFi)

22. Board Comparison

23. ATTiny
555 timer
ATTIny 85
ATTiny 84A
85 specs:
Memory 8KB
8 MHz
Made by Atmel (same as Arduino)
Small and cheap
Uses less power
little memory
Not all Arduino functions would work
Can use software communication features even hardware don’t
exist

24. Ultrasonic Sensor
Distance via Ultra Sound
2-500 cm
4 pins

25. Relays
Just use Digital GPIO pin
And turn DigitalWrite LOW/HIGH

26. Can be used both:
- Raspberry - HDMI
- Arduino - SPI
Displays: LCD
Please Use Quality ones
like official 7’ screen

27. Displays: 1602A LCD

28. HAT
Low power Usage
Takes time to repaint
Displays: e-Paper

29. Displays: OLED

30. Vintage
https://www.instructables.com/id/Making-ApplePi-
Merging-a-Vintage-Macintosh-Plus-Wi/

31. My Dear Old Dell D820 Laptop…

32. Motors
DC
Stepper
Servo
Actuator
Solenoid

33. Voltage Regulation
Linnear
(not effective)
Step-Down (Buck
converter)

34. Voltage Regulation
ReUse old DC’s

35. Thinger.io (os platform)

36. Software
Blynk

37. Software Node RED

38. MQTT
MQTT[1] (Message Queuing Telemetry Transport) is an ISO standard (ISO/IEC PRF 20922)[2]
publish-subscribe-based messaging protocol. It works on top of the TCP/IP protocol. It is
designed for connections with remote locations where a "small code footprint" is required or
the network bandwidth is limited. The publish-subscribe messaging pattern requires a
message broker.

39. Serial
UART (TTL)
RS 232
RS 485
Raspberry Pi - Arduino Uno

40. Serial
Python (Raspberry Pi)
C (Arduino)

41. Serial Source code
Python (Raspberry Pi)
C (Arduino)

42. Trends?
“Same trends that have been true
for decades. Higher levels of
integration, especially with new
kinds of IO like RF (ESP-12/32,
for example), more memory of
various types, faster clocks,
lower cost, lower power, smaller
packages. I wouldn’t expect
those trends to change much
over the coming years or tens of
years. “

43. My Projects
Eco Friendly
Involve Friends
Ultimate Playground
Non Functional Requirements:

44. My Projects

45. My Projects

46. My Projects

47. My Projects

48. 1st - Good Planning

49. Home Automation
Voice control - Lights
IR Led - Old Speakers
RF (433 MHz) - Bathroom heater
Future:
- Restart Router? :)
- Water boil
- Dream: laundry hanging
- Smart Mirror
- BathRoom: heater temp, room temp,
auto light (need for handwash 3 secs)

50. Amazon Alexa
Voice Control
Control Home
devices (ESP8266)
Routines
Developer API

51. Sonoff WiFi Devices
Get it working in 5 mins
Smart Switch
Relay block
Temperature sensor
E27 light
Button

52. AudioGuru

53. Applications

54. Future: Magic Mirror
ciziunas.pro

55. Weather Station
Temperature
Humidity
Air Pressure
Wind speed
Wind Direction
WindGuru
Energy Saving
Stevenson screen

58. Garage Security

59. WiFi worked at first…

61. My GreenHouse project

62. Production is not really Friendly
Create POC in Your Workspace

66. - RS 485
- 30m

67. Solar Powered

69. Time Module
DS323
DS1302

70. Power Consumption

71. Relay Control

72. Transistors
Scheme
Relay Control

73. Door Opener
L298N
Code

74. LED strip
Arduino
Addressable
Power source calculation
Resistor on Data pin
Connect ground!

78. Future…

79. “SuperComputer”
Rack
dream
reality

80. Future Application…

81. Advice for Quick Start
50 sensors
Top Projects on YouTube
Insta: techwiki

82. Advice for Quick Start
Set of items
BreadBoard
Wire connectors
PCB Holder

83. Advice for Quick Start
Voltmeter
(can be cheap)
Power Source
(better good quality)

84. Voltmeter implementation
Pull Up / Pull Down

85. Advice for Quick Start
AliExpress (cheapest, long to wait)
amazon.co.uk (quick, more expesive, sometimes same price)
Evita (electronic parts, advice)
Lemona (electronic parts, advice)
Dogas (wires)

86. Social Media
FaceBook:
Open-source electronic
community Group (Lithuanian)
Instagram: TechWiki
Community: Instructables,
hackster.io, ESP8266,
arduino.cc, raspberry.org
Advice for Quick Start
Great Scott
Bitluni
Andreas Spies
MakerPortal
RDagger

87. circuits.io (can edit and print online)PCB’s

88. Create the Change

89. Project Buddies
Vidmantas - Relative. Electronic. General knowledge.
Pranas - Dad. Implementation of mechanics, wires.
Robertas - Colleague. Parts as Gift and prof. advices.
Darius - Friend. Sys Admin. NonameHosts service + advice on Linux, VPN.
Vaidotas - Friend, BA. Ideas, usability, UI.
Viktor - Colleague. Frontend Dev. React, PWA.
Jonas - Colleague. UIX.
HondaTuning, Auto Tuning/Repair. Mechanics greenhouse.
AudioGuru, Friend. Audio Shop. Choosing Bluetooth DAC.
Ciziunas.Pro - Tech Buddy.
Edvardas - Friend of family. Electronic. Security system 12V help.
Mindaugas - School friend. Watering of plants.
Thank You

90. Literature
Beginning Robotics with Raspberry Pi and Arduino:
Using Python and OpenCV
Raspberry Pi By Example (Packt Publishing)
Beginning C for Arduino: Learn C Programming for the
Arduino, Second Edition
Arduino Sketches: Tools and Techniques for
Programming Wizardry
Pramoninės komunikacijos procesų valdyme. A.
Večkys

91. Contact Me
linkedin.com/in/sasnauskas/
@sasnauskastech
p.sasnauskas@gmail.com