Arduino Pulse Counter Water Meter

Flow sensor is powered with an external 9 volt battery.

Arduino pulse counter water meter.

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The home for open source hardware. In some cases newer water meters are equipped with a pulse output. Digital pin 3 of arduino is configured as interrupt pin. The kal d06 series digital pulse counter adds a remote digital display with reset to any mechanical water meter with pulse output.

A log of all water meter activity is saved on the sd card. Single phase and three phase electrical energy meters gas meters water meters. Using an sd card and an ethernet connection together has proven challenging both use an spi connection until i used the w5100 chip based ethernet shield with an integrated sd card. It emits an infrared light and detects the reflection.

The ethernet connection is used to answer a handful of basic http requests. However if you have an older power meter without a pulse output then you might be able to use one of the options below to sense your water consumption. In the case of an electricity meter a pulse output corresponds to a defined amount of energy passing through the meter kwh. The pulse output may be a flashing led or a switching relay usually solid state or both.

In the above circuit i attached the pulse output pin of flow sensor to arduino digital pin 3. Water flow meter which i used in the project is from aliexpress. Donate to support open hardware.