See It: http://solarpi.tafkas.net
More Details: http://blog.tafkas.net/2014/11/19/solarpi-a-flask-powered-photovoltaic-monitor/
excerpt from the blog post…
After collecting some photovoltaic data using PikoPy and a some readings from the residential meter it was time to put everything together. The data is collected by a couple of scripts triggered by a cronjob every five minutes.
$ crontab -l
*/5 * * * * python /home/solarpi/kostal_piko.py
*/5 * * * * python /home/solarpi/collect_meter.py
*/15 * * * * python /home/solarpi/collect_weather.py
The results are then written into a SQLite database. I chose SQLite over PostgreSQL for its lighter footprint on the Raspberry Pi. And since we will have no concurrent writes SQLite should be capable serving as a database backend.
The sole purpose of the web application is to fetch data from the database and render the results. I decided to use Flask, a microframework for Python based on Werkzeug and Jinja 2. For the Frontend I used the Bootstrap based SB Admin 2 Theme.
(continue reading at link above)
The Raspberry Pi 3 is the third generation Raspberry Pi. It replaced the Raspberry Pi 2 Model B in February 2016. Compared to the Raspberry Pi 2 it has: A 1.2GHz 64-bit quad-core ARMv8 CPU 802.11n Wireless LAN Bluetooth 4.1 Bluetooth Low Energy (BLE) Like the Pi 2, it also has: 1GB RAM 4 USB […]
Source: Raspberry Pi 3 Model B – Raspberry Pi
The Raspberry Pi 2 Model B is the second generation Raspberry Pi. It replaced the original Raspberry Pi 1 Model B+ in February 2015.
Source: Raspberry Pi 2 Model B
With so many amazing projects being done with both boards, it can be difficult to know which is right for you. Read on to make your decision.
Source: Raspberry Pi or Arduino? One Simple Rule to Choose the Right Board | Make:
Expect to build bigger projects with more connectivity.
Technology has changed significantly since the cheap educational micro-computer Raspberry Pi Model B was launched in 2012. Now, a new model will reflect the latest developments.
When Raspberry Pi Foundation introduced the Raspberry Pi Model B+. Pi inventor and Foundation CEO Eben Upton said that while the company will continue to produce and sell older Raspberry Pi models, customers should see the B+ as a high tech replacement…
Source: Five Things To Know About The Raspberry Pi Model B+ – ReadWrite