one-home-sensor 0.1.0

My home tempearture sensor for my RaspberryPi

One Home Sensor

This peace of software reads temperature, pressure and humidity from a BME280 sensor. It then pushes the result to a MongoDB data-base (MongoDB Atlas form my part).

Usage

My setup is as followed :

  +-------------+
  | RaspberryPI |    +-------------+    +-------------+ 
  |             |    |  MongoDB    |    |  Phone /    |
  |  one_home_  +--->|  Atlas      +--->|  WebBrowser |
  |     sensor  |    +-------------+    +-------------+
  +-------------+

I periodically run it (throught systemd) to store the values.

Integration / Instalation

This programe is created and only used/tested/supported in python3. These commande should solve all dificulties.

sudo apt-get update
sudo apt-get install python3-setuptools python3-dev python3-pip i2c-tools 
sudo python3 setup.py install 
python3 -m pip install 'pymongo[snappy,gssapi,srv,tls]'

1. Create cluster on MongoDB Atlas
2. Create connection autorization and user
3. Create configuration file (see next section)
4. Enable I2C in raspi-config (5 then P5).
5. Add user to group "i2c" (sudo usermod -a -G i2c leadthesalt)

For my part I install the programe with an Ansible rôle. Sure I could create a debian package, but I only use it on my Raspbery Pi that are already managed throught Ansible.

Configuration file

[MongoDBAtlasConnection]
username = # username set for MongoDB
password = # password set for MongoDB
clusterfqdn = # fqdn to MongoDB server 

Documentations

https://github.com/pimoroni/bme280-python
https://github.com/pimoroni/skywriter-hat/issues/4
https://learn.pimoroni.com/related-products/adafruit-mpl3115a2-i2c-barometric-pressure-altitude-temperature-sensor
https://docs.mongodb.com/