SolarPi – Weather / Temp RasPi Project

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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/
*/5 * * * * python /home/solarpi/
*/15 * * * * python /home/solarpi/

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.

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Raspberry Pi 3 Model B – Raspberry Pi

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

Five Things To Know About The Raspberry Pi Model B+ 

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