Home sense server

The objective of this project is to create a smart LED strip you can place everywhere in the house.

With the home_sense project you can :

• know the best timing to take your bus/tramway/subway
• display the next 12 hours temperatures
• and all other meanings you can bring to a LED strip

The server part (doing the 'smart business') sends the data to the LED Strip part

The server part is composed of :

• A Rasperry Pi 2 running on Raspbian and connected to the Internet
• 2 buttons :
  • A MODE button : with this, you can switch the mode of the LED strip :
    • display bus data
    • display weather data
    • turn off the Raspberry Pi
    • and other stuff you can write like
  • A SELECT button : with this, you can select the option of the current mode:
    • With bus data, switch to another preloaded target address
    • With weather data, switch from temperatures display to conditions display
    • etc...
• A 4 alphanumeric digits LED display will show you the modes and selection you have made
• A 433 Mhz emitter, to send the data to the LED Strip (- A 433 Mhz receiver to receive data from other components - NOT USED YET)

You can download the Server Fritzing file.

The src folder contains the python scripts to run the server part. The main.py file contains the main functions of the server. Each server mode is a python class called by the main module:

• busgo.py contains the bus mode software
• weather.py contains the weather mode software

The communication with the led strip is held by the led_communication.py file and uses the virtualwire python implementation

The LED Strip part is composed of :

• An Arduino Uno to drive the LED Strip
• An AdaFruit Digital LED Strip (30 LED - 1 meter)
• A 433 Mhz receiver to receive data from the server (Raspberry Pi 2)

You can download the LED Strip part Fritzing file.

(The arduino software is not yet in that repository - COMING SOON)

A config.json file should be present in the src folder. This file is not uploaded in the repository for security purposes. If you have not one, copy the demo file to config.json and edit it

If you wish to use the weather temperature data, fill the weather parameters :

• city
• openweather_apikey

If you wish to use the busgo data, fill the parameters :

• gmaps_key (you have to get a google maps API Key with Directions API enabled)
• create a direction data (gmaps_directions) :
  • id (unique)
  • a small text to quickly identify the target address (4 letters max - for alphanumeric led display)
  • the source address (source_address)
  • the target address (target_address)

... other projects contributors :

• VirtualWire implementation for Raspberry Pi
• google maps services for python