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pywebir

pywebir is the preliminary name for a web-based infrared control system I'm working on that's primarily designed for controlling in-window air conditioners. It uses a USB IR Toy and a Raspberry Pi to accomplish the task.

This is a toy project and as such is needlessly complex: it uses Redis as a datastore and message queue for a Celery distributed task worker that actually sends the IR commands as they occur. So, it's pretty fast, consistent and commands will always execute in order, but there's a fair bit of setup involved.

Screenshot

iPhone 5

Making it work on Arch

Install Arch on your RaspberryPi. You can use Raspbian if you want, but uWSGI won't work since the Raspbian Python package doesn't include a shared library.

# pacman -Syu
# pacman -S nodejs python2 python2-virtualenv base-devel redis tmux

You'll also need to either run all of this as root or add a user for yourself. Make sure the new user is in the uucp group so that it can access the serial port:

# useradd -G wheel,uucp -m <YOUR USER>
# passwd <YOUR USER>

Clone the pywebir repo and set up a virtualenv:

$ git clone [email protected]:wyattanderson/pywebir.git
$ cd pywebir
$ virtualenv-2.7 env
$ source env/bin/activate
$ pip install -r requirements.txt

Sit back and relax. This'll take some time. When you're done, then install the necessary NodeJS packages for building the static assets:

# sudo npm install -g uglify-js coffee-script stylus nib

Take a look at the settings.py file and either edit that file or add your own webapp.cfg file to the webapp/ directory. Then, build the assets and start the server:

$ python manage.py assets build
$ tmux uwsgi -y webapp/uwsgi.yaml --env PYWEBIR_SETTINGS=webapp.cfg

Then, you can access the web interface at http://alarmpi:5000/ (or whatever your RPi's hostname/IP is).

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A small webapp for controlling window A/C via IR

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