Water consumption
13/03/2014
The "geek game" from last month was motivated by a less frivolous goal: visualizing water consumption in real time:
From flowing water to displaying the liters passing, there are a few elements:
A water meter with an electronic output
A web server
In this case, the Raspberry Pi does most of the work. It receives the pulses sent by the pulse water meter, records them, translates them into liters (to the nearest quarter liter!), and makes them available to any device capable of displaying a web page (smartphone, tablet, computer) connected via Wifi.
The user manual for monitoring water consumption is simple: similar to a stopwatch, except it's not just time passing but liters of water flowing.
Video demonstration: https://youtu.be/Qk2_7RGGwf8