This is a small project to play a bit with RaspberryPi, IR and my fan.
The aim is to be able to automate my fan. You know, where I live summer is really hot and it's nice to be able to automate when I want my fan on :).
- RaspberryPi
- Jump wires
- 1 red LED
- 1 PN2222 transistor
- 1 680 ohm resistor
- 1 220 ohm resistor
- 1 IR receiver
- 1 IR LED
- Bread board
Install python3-crontab, python3-pip and the required modules.
sudo apt-get install python3-crontab
sudo apt-get install python3-pip
sudo apt-get install gunicorn3
pip3 install -r requirements.txt
Create your SSL certificate
openssl genrsa -out key.pem 2048
openssl req -new -key key.pem -out csr.pem
openssl x509 -req -days 365 -in csr.pem -signkey key.pem -out cert.pem
Create a .env file like:
location = <Folder-Location>
gpio_pin = <GPIO PIN>
ir_file = <JSON file with IR records>
cert = </certs/yourcert.pem>
key = </certs/yourkey.pem>
We will use PiIR that is based on PiGPIO a much better, easy to use and modern way to deal with IR from RPi than LIRC.
Record:
piir record --gpio <Your-GPIO-PIN> --file record.json
Once recorded we will use the record.json directly from the python web app.
The web app is based on python flask. For scheduling the actions (turn on, turn off, set high speed for fan...) we use the native Linux Cron.
At the end, it's and extremely simple and easy to read app so you can modify if for whatever you want. It's just a demostration of how we can automate any IR-based system.
gunicorn --certfile=./certs/cert.pem --keyfile=./certs/key.pem --bind 0.0.0.0:5500 piFan-app:piFan