SmartRoom

An Android app to control/monitor my room using an Arduino with a web API as backend.

Features

View room's temperature (in °C)
View room's illuminance (in lux)
View if door is open or closed
View room's outlet states (on/off)
Turn on/off outlet
Autoswitch mode: turns on an outlet when the door opens, turns it off when the door closes

Arduino scheme

scheme Note: the ethernet and 433MHz transmitter modules are the ones provided by Fritzing, the real ones I used differ a bit (but you get the idea).

Android app

my room The Android app has a card for each value of the room. Tap the card to change its value (e.g. tap on powerswitch 0 to turn it on/off). The app also displays a message to tell if the call was succesful or has failed.

API calls

GET /

Returns a JSON with all the up-to-date info about the room.

Request

Response

Parameter	Type	Description
temperature	double	The temperature of the room in °C.
light	int	The illuminance of the room in lux.
doorClosed	boolean	Tells you if the door is open or closed.
autoswitch	boolean	True if the Autoswitch mode is on, false if not.
powerswitchStates	boolean[]	Array of all the states of the outlets (true = on, false = off).

GET /power

Turn a specific outlet in the room on or off.

Request

Parameter	Type	Description
id	int	The index of the specific outlet.
a	String	The action to complete [on/off].

Response

Parameter	Type	Description
m	String	Message saying the action has been completed.

GET /mode

Lets you turn the Autoswitch mode on or off.

Request

Parameter	Type	Description
a	String	The new state for the Arduino's Autoswitch mode [on/off].

Response

Parameter	Type	Description
m	String	Message saying the action has been completed.

About

This project was started for my class Internet of Things at school. If you want to read about the progress you can check out the blog behind it (Dutch).

If you wish to contact me for anything you can get in touch at:

Twitter: https://twitter.com/Ignace_Maes
Personal Website: http://ignacemaes.com