Monsters, Mailboxes and other nonsense @ IndieWebCamp Düsseldorf

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monsters, mailboxes and other non-sense

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a new home

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10 meter

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the house   of the future

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433MHz

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IoT is actually incredibly boring

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raspberry pi with domoticz

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chicken thermostat

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brrrr!

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kippenwaterdrinkbak (chicken water trough)

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kippenwaterdrinkbakverwarmingselement (chicken water trough heater)

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kippenwaterdrinkbakverwarmingselementschakelaar (chicken water trough heater switch)

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kippenwaterdrinkbakverwarmingselementschakelaarthermometer (chicken water trough heater switch thermometer)

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rfxcom

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every 30 seconds a “ping” with the temperature

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temperature below zero, turn on the heater

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turn klikaanklikuit switch on

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The “S” in IoT stands for security

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the ﬁery  witches kettle

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Do-it-yourself IoT

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brains (or microcontrollers)

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Arduino Uno  ATmega238  16 Mhz  2 KB RAM  32 KB Flash

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

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NodeMCU  ESP 8266  80 Mhz  128 KB RAM  4 MB Flash 

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NodeMCU

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Neopixel  24 serial   connected   WS2812 RGB   LEDs

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#include #define PIN D1 #define PIXELS 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) { }

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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, 63)); strip.setPixelColor((i + 2) % PIXELS, strip.Color(0, 0, 127)); strip.setPixelColor((i + 3) % PIXELS, strip.Color(0, 0, 195)); strip.setPixelColor((i + 4) % PIXELS, strip.Color(0, 0, 255)); strip.show(); delay(8); }

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

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IKEA SOMMAR 2017 lantern

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WiFi must be very complicated…

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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(); }

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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

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homebridge homebridge-better-http-rgb

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siri

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siri

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pixel monsters

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Prolight 12W ceiling lamp

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Neopixel  64 serial   connected   WS2812 RGB   LEDs

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

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progressive  web app

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http:/ /pixel.local

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http:/ /pixel.local

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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(); }

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

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

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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 }; } }

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demo

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the mystery  of the   haunted mailbox

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mail box

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magnetic contact

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when the mailbox opens it sends a signal

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

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

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

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solution #3

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the ﬁckle  washing machine

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

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Laundry is done

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

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2000 watt

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20 - 200 watt

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2 - 5 watt

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

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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