Published November 5, 2019

Lavatory Vacant/Occupied Sign ~Human Detection Sensor~

Let's make lavatory vacant/occupied sign to check whether it is available or not!

BeginnerFull instructions provided934

Things used in this project

Hardware components

Cambrian Robotics obniz

EKMC1601111

battery or USB adaptor & cable

Story

Introduction

On the airplane, you can see lavatory sign on/off and check whether it is occupied or not with a glance. It is very convenient to check it without going and knocking out the door directly. You can realize it even home or at the office simply!

There is a human detect sensor like EKMC1601111. We created HTML showing lavatory vacant/occupied sign (like on the airplane) by implementing this sensor.

Materials

obniz – 1
EKMC1601111 – 1
battery or usb adaptor & cable – 1

Step 1

Connect EKMC1601111 to an obniz.

Now we connect likeio0: GND, io1: Signal, io2: VDD

Step 2

Put this on toilet.

Step 3

Let's check out how it works!

What is obniz?

obniz is a cloud-connected IoT development board. You can program on the web browser of any smartphone or computer and the command is sent to obniz through the internet via obniz cloud. By connecting the obniz to the cloud through wifi, users can remotely control devices that are physically connected to obniz.

obniz has 12 IO and WiFi-BLE module. It can be controlled through the APIs – REST or WebSocket API – on obniz cloud. Not only simple IO on/off but also UART, I2C, BLE etc can be used by remotely controlling obniz via internet. All you need to do to connect obniz is to input unique ID by scanning QR code. Complicated processes are done by obniz and its cloud. You can just start programming in HTML, browser and circuit have already been integrated. If you write a program to collect sensor values, you can make a chart of the values easily.

For more information, please visit our website! https://obniz.io/

You can find a variety of projects made with obniz board! https://blog.obniz.io/example/

untitled_file.html

<!DOCTYPE html>
<html>
<head>
 <meta charset="utf-8">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
 <script  src="https://code.jquery.com/jquery-3.2.1.min.js" integrity="sha256-hwg4gsxgFZhOsEEamdOYGBf13FyQuiTwlAQgxVSNgt4="  crossorigin="anonymous"></script>
 <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.3/umd/popper.min.js" integrity="sha384-vFJXuSJphROIrBnz7yo7oB41mKfc8JzQZiCq4NCceLEaO4IHwicKwpJf9c9IpFgh" crossorigin="anonymous"></script>
 <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" crossorigin="anonymous"></script>
 <script src="https://unpkg.com/obniz@1.9.1/obniz.js"></script>
</head>
<body>
<div id="obniz-debug"></div>
<br>
<div class="text-center">
 <h1> Lavatory Signal </h1>
</div>
<div id="a"><img src="https://www.dropbox.com/s/e7nqlug3wz4ku5v/in_notuse.jpg?raw=1" id="image" width="100%"></div>
<h1 id="print"></h1>
<div id="sens1"></div>
<script>
var sensorAdd = 0;
/* This will be over written on obniz.io webapp page */
var obniz = new Obniz("OBNIZ_ID_HERE");
obniz.onconnect = async function () {
 var sensor = obniz.wired("PaPIRsVZ", {gnd:0, signal:1, vcc:2});
 sensor.onchange = function(val){
   if (val) {
     sensorAdd += 1;
     $("#sens1").text("sensorAdd:"+sensorAdd);
   }
 }
 function update() {
   if (sensorAdd == 0) {
     $("#print").text("Empty");
     $("#image").attr("src", "https://www.dropbox.com/s/e7nqlug3wz4ku5v/in_notuse.jpg?raw=1");
   } else if (sensorAdd != 0) {
     $("#print").text("Occupied");
     $("#image").attr("src", "https://www.dropbox.com/s/x5wlr6kwmq15mrp/in_use.jpg?raw=1");
   }
   sensorAdd = 0;
   $("#sens1").text("sensorAdd:"+sensorAdd);
 }
 setInterval(update, 2000) 
}
</script>
</body>
</html>

Credits

obniz developer team

80 projects • 32 followers

Development board "obniz" is controlled via the internet.

Lavatory Vacant/Occupied Sign ~Human Detection Sensor~

Things used in this project

Hardware components

Story

Introduction

Materials

Step 1

Step 2

Step 3

What is obniz?

Code

untitled_file.html

Credits

obniz developer team

Comments

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Lavatory Vacant/Occupied Sign ~Human Detection Sensor~

Lavatory Vacant/Occupied Sign ~Human Detection Sensor~

Things used in this project

Hardware components

Story

Introduction

Materials

Step 1

Step 2

Step 3

What is obniz?

Code

untitled_file.html

Credits

obniz developer team

Comments

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