RPI temperature watcher

Introduction

Web server using a Raspberry Pi and BME280 sensor to graph the humidity and temperature over time. The data can be accessed over a web browser.

Setup

sudo raspi-config
# enable I2S

Run full setup

./setup.sh

Summary

The temp_app.py is the flask application that creates the webpages. This flask app will be loaded by the fastcgi plugin of lighttpd.

The database will be filled by a cronjob that triggers the python script append_db.py every x minutes (5min).

The webserver has 3 views, The home page, history page and settings page.

Home page

In the current view, the current temperature and humidity taken from the sensor is displayed on the web page. This page updates every 10 seconds, and has a link to the historic view.

History page

The history view has a couple features. The first is a to and from date input, which uses a date time picker plugin. Combined with a submit button, this allows you to view the temperature and humidity data within any date time range easily. The next feature are four radio buttons, to easily see the last 3, 6, 12, and 24 hours of data. There is also a link to go abck to the home page.

The main view are 2 tables combined with Google Charts graphs. The tables both scroll, and the charts display data across the time selected. The times are displayed in your own time zone, as it is determined from your browser.

Settings page

Edit the settings of the application.

Usage

Manual test webserver

source venv/bin/activate
python3 temp_app.py

Manual messurement to db

./cron_trigger.sh

Take a peak at the db db

venv/bin/python get_data.py

TODO

Send data through http calls and not static pages that need to be reloaded
Improve home page with gauges for temperatures
Improve the settings page to control more settings (cron frequency, ...)
Improve pages for viewing on mobile
More options to view the data
Be able to export the data

mroelandts / rpi-temperature-watcher Goto Github PK