Monsters, mailboxes and other nonsense

monsters, mailboxes and other non-sense

a new home

10 meter

the house of the future

433MHz

IoT is actually incredibly boring

raspberry pi with domoticz

chicken thermostat

brrrr!

kippenwaterdrinkbak (chicken water trough)

kippenwaterdrinkbakverwarmingselement (chicken water trough heater)

kippenwaterdrinkbakverwarmingselementschakelaar (chicken water trough heater switch)

kippenwaterdrinkbakverwarmingselementschakelaarthermometer (chicken water trough heater switch thermometer)

rfxcom

every 30 seconds a “ping” with the temperature

temperature below zero, turn on the heater

turn klikaanklikuit switch on

The “S” in IoT stands for security

the fiery witches kettle

Do-it-yourself IoT

brains (or microcontrollers)

Arduino Uno ATmega238 16 Mhz 2 KB RAM 32 KB Flash

ESP-01 ESP 8266 80 Mhz 128 KB RAM 512 KB Flash

NodeMCU ESP 8266 80 Mhz 128 KB RAM 4 MB Flash

NodeMCU

Neopixel 24 serial connected WS2812 RGB LEDs

#include <Adafruit_NeoPixel.h> #define PIN #define PIXELS D1 24 Adafruit_NeoPixel strip = Adafruit_NeoPixel(PIXELS, PIN, NEO_GRB + NEO_KHZ800); void setup(void) { strip.begin(); strip.setBrightness(255); strip.setPixelColor(0, strip.Color(0, 0, 255)); strip.show(); } void loop(void) { }

int i = 0; void setup(void) { strip.begin(); strip.setBrightness(255); } void loop(void) { i = (i + 1) % PIXELS; strip.setPixelColor(i % PIXELS, strip.Color(0, 0, 0)); strip.setPixelColor((i + 1) % PIXELS, strip.Color(0, 0, strip.setPixelColor((i + 2) % PIXELS, strip.Color(0, 0, strip.setPixelColor((i + 3) % PIXELS, strip.Color(0, 0, strip.setPixelColor((i + 4) % PIXELS, strip.Color(0, 0, strip.show(); delay(8); } 63)); 127)); 195)); 255));

?! JavaScript? And C? Kinda the same. Just about. Not quite. No.

IKEA SOMMAR 2017 lantern

WiFi must be very complicated…

const char* ssid = "........"; const char* password = "........"; ESP8266WebServer server(80); void setup(void) { WiFi.begin(ssid, password); while (WiFi.status() != WL_CONNECTED) delay(500); server.on("/on", { server.send(200, "text/plain", "on"); }); server.on("/off", { server.send(200, "text/plain", "off"); }); server.begin(); } void loop(void) { server.handleClient(); }

http://sparkle.local/api?command=power&status command=power&on command=power&off command=brightness&status command=brightness&set=50 command=color&status command=color&set=f34d0d

homebridge homebridge-better-http-rgb

siri

siri

pixel monsters

Prolight 12W ceiling lamp

Neopixel 64 serial connected WS2812 RGB LEDs

SD card Storage of monsters Lightsensitive resistor Night-mode Buzzer Beeps for notifications

progressive web app

http://pixel.local

http://pixel.local

editor.addEventListener('touchstart', handleTouch); editor.addEventListener('touchmove', handleTouch); function handleTouch(e) { for (var i = 0; i < e.changedTouches.length; i++) { let elem = document.elementFromPoint( e.changedTouches[i].pageX, e.changedTouches[i].pageY ); if (elem.tagName && elem.tagName == 'TD' && editor.contains(elem)) { drawPixel(elem); } } e.preventDefault(); }

editor.addEventListener('touchstart', handleTouch); editor.addEventListener('touchmove', handleTouch); function handleTouch(e) { for (var i = 0; i < e.changedTouches.length; i++) { let elem = document.elementFromPoint( e.changedTouches[i].pageX, e.changedTouches[i].pageY ); if (elem.tagName && elem.tagName == 'TD' && editor.contains(elem)) { drawPixel(elem); } } e.preventDefault(); }

let socket = new WebSocket( "ws://" + window.location.host + "/ws" ); function drawPixel(elem) { if (elem.dataset.color != currentColor) { elem.dataset.color = currentColor; elem.style.backgroundColor = '#' + currentColor; socket.send(JSON.stringify({ command: "draw", x: elem.dataset.x, y: elem.dataset.y, color: currentColor })); } }

let socket = new WebSocket( "ws://" + window.location.host + "/ws" ); function drawPixel(elem) { if (elem.dataset.color != currentColor) { elem.dataset.color = currentColor; elem.style.backgroundColor = '#' + currentColor; socket.send(JSON.stringify({ command: "draw", x: elem.dataset.x, y: elem.dataset.y, color: currentColor })); } }

{ "command": "draw", "x": 5, "y": 5, "color": "ffffff" }

{ "command": "draw", "x": 5, "y": 5, "color": "ffffff" }

socket.onmessage = function(msg) { let data = JSON.parse(msg.data); if (data.command == "draw") { let elem = document.querySelector( 'td[data-x=' + data.x + ']' + '[data-y=' + data.y + ']' ); elem.dataset.color = data.color; elem.style.backgroundColor = '#' + data.color }; } }

socket.onmessage = function(msg) { let data = JSON.parse(msg.data); if (data.command == "draw") { let elem = document.querySelector( 'td[data-x=' + data.x + ']' + '[data-y=' + data.y + ']' ); elem.dataset.color = data.color; elem.style.backgroundColor = '#' + data.color }; } }

demo

the mystery of the haunted mailbox

mail box

magnetic contact

when the mailbox opens it sends a signal

http://pixel.local/api?command=notify&icon=mailbox

combine the magnetic contact with a motion sensor? solution #1

turn off the magnetic contact with strong westerly winds? solution #2

solution #3

the fickle washing machine

Start program 24,9 watt Washing machine off 0,3 watt Standby usage 4,6 watt

Laundry is done

Laundry is done Laundry is done Laundry is done Laundry is done

2000 watt

20 - 200 watt

2 - 5 watt

Laundry is done Laundry is done Laundry is done Laundry is done

commandArray = {} if (uservariables['WasmachineBezig'] == 2) then s = uservariables_lastupdate['WasmachineBezig'] lastUpdate = os.time{ year=string.sub(s, 1, 4), month=string.sub(s, 6, 7), day=string.sub(s, 9, 10), hour=string.sub(s, 12, 13), min=string.sub(s, 15, 16), sec=string.sub(s, 18, 19) } difference = os.difftime (os.time(), lastUpdate) if (difference > 300) then commandArray['Variable:WasmachineBezig'] = '0' commandArray['OpenURL'] = 'pixel.local/api?command=notify&icon=shirt' end end return commandArray

Laundry is done

questions?