eWatermeteralert
Clean water is a precious commodity. We have to prevent wasting it.
You hear occasional stories of people where they get a big settlement by a waterleak. People today are more than ever concerned with their water consumption.
The media gives message that the municipalities will increase the charge per litre.
I now have a very cheap solution which monitors your watermeter for normal water usage.
The user gets an alarm if in 24h there is no 2h where no (less than 0, 5 l) water is used. If this is not the case, there is a water leak.
If the user leaves open a watertab longer than 30 min then there is also an alarm. In this case one has forgotten the water tap.
The circuit consists of an Atmel attiny 13 powered by 2 AAA bateries. The design would consume about 5µA and thus would last for many years before new bateries are required.
The media gives message that the municipalities will increase the charge per litre.
I now have a very cheap solution which monitors your watermeter for normal water usage.
The user gets an alarm if in 24h there is no 2h where no (less than 0, 5 l) water is used. If this is not the case, there is a water leak.
If the user leaves open a watertab longer than 30 min then there is also an alarm. In this case one has forgotten the water tap.
The circuit consists of an Atmel attiny 13 powered by 2 AAA bateries. The design would consume about 5µA and thus would last for many years before new bateries are required.
Want to build a project?
Bring your design to life with the Elektor PCB Service, powered by Eurocircuits. Upload the project files and order professionally manufactured PCBs or assembled boards through a proven European production platform.
Supporting KiCad, Eagle, Gerber, and ODB++ formats, the service is suitable for everything from prototypes and validation builds to series production and volume manufacturing.
Made in Europe. Fast. Reliable. Professional.
Mises à jour de l'auteur