Ever wonder why we can apply the smart home concept to our home? Here the first step to implementing a smart lighting system with micropython, code IoT device as easy as code with python.

1. DIY
Home Smart Lighting
System with Micropython
August 26th, 2018 - By Tegar Imansyah

2. Hello!
I am Tegar Imansyah
IoT Enthusiast Enthusiast
You can find me at @tegarimansyah
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3. Today’s Agenda
● What is Smart Lighting System?
● Electronics Part
● Connecting Device
● Controlling from Worldwide
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4. What is it?
We will learn What is the difference of Smart Lighting System, Smart
Home and IoT.
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5. What is it?
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Source: https://blogs.intel.com/iot/2015/04/01/all-for-one-and-one-
for-all-how-the-iot-is-centralizing-intelligence-across-industries/
Source:
http://condorestates.co.uk/featured/smart-homes-ready-or-not/

6. Why you
Need it?
It is cool!
Make your life easier
Save our earth
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7. Why not
Implement it?
Spend Extra Money!
You have no time to DIY.
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8. Electronics Part
Let’s start with the first set of technical slides
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9. ● No Undo
● Unseen
● Broken =
Start from
Beginning
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10. “ Even your code is perfect, if you are not
sure with your circuit, and your code will
not works properly
--
Tegar, 2018
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11. Lighting Control - Conventional Way
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12. What We Will Do
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WEMOS d1 Mini
Based on ESp8266
80Mhz Proc
32KB RAM
Programmable
GPIO
AC 220 / 110 V DC 3.3V
Relay

13. 13
What We Will Do

14. MicroPython
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● Python programming language that is optimised to run on
microcontrollers.
● Created by Damien P. George at 2013
● Learn more https://micropython.org/
● Micropython is Installed on your microcontroller instead of
your computer
● Support REPL, Run from file and standalone.

15. Getting Started (on Ubuntu)
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● Install Tools = [ esptools.py, Adafruit MicroPython Tool (ampy),
Serial Terminal ]
● Download images (http://micropython.org/download#esp8266)
● Install
○ Plug in microcontroller to your computer
○ $ esptool.py --port /dev/ttyUSB0 erase_flash
○ $ esptool.py --port /dev/ttyUSB0 --baud 460800 write_flash
--flash_size=detect 0 esp8266-20170108-v1.8.7.bin

16. Getting Started (on Ubuntu)
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● Open Serial
Terminal
● REPL active
if not blocked

17. Getting Started (on Ubuntu)
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● Files on MicroPython
○ $ export AMPY_PORT=/dev/ttyUSB0
○ $ ampy run main.py # run main.py from computer in microcontroller
○ $ ampy ls # Checking file(s) on microcontroller
○ $ ampy put main.py # copy main.py from computer
● Hierarchy:
○ boot.py
○ main.py (if exist)
○ REPL

18. import machine - Turn On or Off
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19. NeoPixel as a Table Lamp
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20. Connecting Device
Connecting to the outside world
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21. Connecting to WiFi
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22. Connecting to Cloud Service
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23. MQTT - Most Popular Pub-Sub for IoT
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Brokertable-lamp
room-lamp
subscribe
table-lamp
subscribe
room-lamp
subscribe table-lamp
subscribe room-lamp
subscribe table-lamp
subscribe room-lamp

24. MQTT - Most Popular Pub-Sub for IoT
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Brokertable-lamp
room-lamp
publish table-lamp (255,0,0)
receive table-lamp (255,0,0)
receive table-lamp (255,0,0)

25. Adafruit IO Topic Format
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YOUR_USERNAME/feeds/bedroom.table-lamp
YOUR_USERNAME/feeds/bedroom.room-lamp

26. Receiving Data in Microcontroller
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27. Receiving Data in Microcontroller
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28. Apply Data to Lamp
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29. Controlling from
Worldwide
The Cool Part starts here
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30. IFTTT
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31. IFTTT
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32. Dialog Flow
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33. Future Works
● Make Your Own
● Design your favourite case
● Use it for your daily
● Be creative
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34. What Next?
● WiFi Setup Over The Air - Using Pico Web
● Digital Input - Physical Button
● Sensor Input (ADC, UART, I2C, etc) - Light Sensor,
PIR Sensor, Infrared Sensor
● Actuator Output (PWM) - Electrical Motor, Servo,
etc
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35. 35
Thanks!
Any questions?
You can find me at @tegarimansyah
Get slide and code:
https://github.com/tegarimansyah/presentation/tree/PyCon-MY-2018