Jeśli zastanawiałeś się kiedyś nad tym czy Java, .NET i wielkie korporacyjne systemy to jedyne miejsce, gdzie programowanie może być ciekawe to ta prezentacja jest właśnie dla Ciebie! Z pomocą maluteńkiego modułu z niesamowitym mikrokontrolerem ESP8266 zbudujemy system sterujący oświetleniem, który z powodzeniem może zostać użyty w domu. Otwórz się na świat Internet of Things i poczuj magię mikrokontrolerów 21-go wieku!

1. Kamera, Światło, Akcja!
IoT: scentralizowane sterowanie oświetleniem

16. ❏ 32-bit Tensilica RISC MCU
❏ 80/160 MHz clock
❏ 16 pinów cyfrowych
❏ 64kb pamięci instrukcji
❏ 96kb pamięci danych
❏ Do 16MiB zew. pamięci flash (4MB)
❏ IEEE 802.11 b/g/n Wi-Fi
❏ Pełny stos TCP/IP
❏ UART, SPI, I2C
❏ RTOS

17. 5 mm x 5 mm

24. 230V
12V

27. 5V12V
230V

32. Espressif SDK

33. Espressif SDK

34. Espressif SDK

35. Espressif SDK

37. https://nodemcu-build.com
https://bit.ly/esptool-py
https://nodemcu.readthedocs.io
https://bit.ly/nodemcu-tool
https://www.lua.org

38. https://nodemcu-build.com

39. https://bit.ly/esptool-py
http://padcom13.blogspot.com/2016/11/flashing-nodemcu.html

40. https://nodemcu.readthedocs.io

41. https://bit.ly/nodemcu-tool
● Upload Lua files to your ESP8266/NodeMCU module
● Upload any file-types (binary save)
● Bulk/Multi file uploads
● Download any file-type (binary save)
● Delete files
● Format the file system
● Simple Serial Terminal to interact with NodeMCU
● Show existing files on your module
● … and much more!

42. https://www.lua.org

44. Connecting to NodeMCU
$ nodemcu-tool terminal
> node.restart()
….
NodeMCU custom build by frightanic.com
branch: dev
commit: e90ffb42667da287537c269c967cb9d723edb376
SSL: false
modules: adc,bit,bmp085,dht,file,gpio,i2c,mqtt,net,node,rfswitch,sjson,tmr,uart,websocket,wifi
build built on: 2017-05-22 08:54
powered by Lua 5.1.4 on SDK 2.1.0(116b762)
lua: cannot open init.lua
>

45. Setting up a access point
wifi.ap.config({
ssid = "esp8266-"..node.chipid(), pwd = "Passw0rd1" })
wifi.ap.setip({
ip = "10.0.1.1", netmask = "255.0.0.0", gateway = "10.0.1.1" })
wifi.setmode(wifi.SOFTAP)

46. Connecting to
> wifi.sta.config({ ssid = "my-network", pwd = "Passw0rd1" });
> wifi.sta.connect();
> =wifi.sta.getip()
192.168.40.113 255.255.255.0 192.168.40.1

47. Managing digital input/output
> -- set D0 as OUTPUT
> gpio.mode(0, gpio.OUTPUT)
> -- set D0 state to HIGH
> gpio.write(0, gpio.HIGH)
> -- set D0 state to LOW
> gpio.write(0, gpio.LOW)

48. Managing digital input/output
> -- set D0 as INPUT
> gpio.mode(0, gpio.INPUT)
> -- read D0 state
> =gpio.read(0)
1

49. Managing digital input/output
> -- set D0 as INPUT
> gpio.mode(0, gpio.INPUT)
> -- react on D0 changes
> gpio.trig(pin, "both", function(state, time)
>> print("STATE: " .. state .. ", time: " .. time)
>> end)

51. MQTT connectivity
> m = mqtt.Client("nodemcu-" .. node.chipid())
> m:connect("192.168.40.1", 1883)

52. MQTT connectivity
> m:on('connect', function(client)
>> m:subscribe('nodemcu/' .. node.chipid(), 2);
>> m:publish("logs", "nodemcu-" .. node.chipid() .. " alive", 1)
>> end)

53. MQTT connectivity - Last will nd testament
> m:lwt("logs", "nodemcu-" .. node.chipid() .. " died", 1)

54. MQTT connectivity
> m:on("message", function(client, topic, message)
>> print('topic: ' .. topic .. ', message: ' .. message)
>> end)

55. MQTT connectivity - Timers
> tmr.create():alarm(1000, tmr.ALARM_SINGLE, function()
>> print('Hello!')
>> end)

56. MQTT connectivity - Timers
> mytimer = tmr.create()
> mytimer:register(1000, tmr.ALARM_AUTO, function()
>> print("Hello!")
>> end)
> mytimer:start()

57. MQTT connectivity - Light sensor
> sensor = 4
> gpio.mode(sensor, gpio.INPUT)
> =gpio.read(sensor)

58. MQTT connectivity - Light sensor
> light = 5
> gpio.mode(light, gpio.OUTPUT)
> mytimer = tmr.create()
> mytimer:register(1000, tmr.ALARM_AUTO, function()
>> gpio.write(light, gpio.read(sensor))
>> end)
> mytimer:start()

59. MQTT connectivity - DHT sensor
> pin = 5
> status, temp, humi, temp_dec, humi_dec = dht.read(pin)
> print(temp)

61. 2 Types of Control
> OUTSIDE in <

62. 2 Types of Control
< INSIDE in/out >