Water flow sensor

Get flow rate and volume consumption from water flow sensors

Features

• [x] :electric_plug: Initialize sensor on GPIO pin
• [x] :articulated_lorry: Set the sensor model
• [x] :shower: Flow detection
• [x] :droplet: Get flow rate (L/m)
• [x] :baby_bottle: Get volume consumption (L)

Install

$ cd <project-folder>
$ npm install water-flow-sensor --save

Usage

1. Require water-flow-sensor module
2. Initialize sensor with pin and model values and a callback
3. The callback gives (when flow start/stop)
   • res.pin: sensor pin
   • res.model: sensor model
   • res.isRunning: whether the sensor is running or not
   • res.flow: instant flow rate in L/min
   • res.volume: volume in L
4. Get status, as well as flow and volume data anytime

// Initialize the sensor
var wfs     = require('water-flow-sensor')
  , sensor  = new wfs(17, 'POW110D3B', wfsCb)

// Callback
function wfsCb(res) {
  console.info(`${res.pin} | ${res.model} | ${res.flow} L/m | ${res.volume} L | ${res.pulses}`)
}

// Access to status and data
console.info(`Sensor is running: ${sensor.isRunning}`)
console.info(`Flow rate: ${sensor.flow} L/min`)
console.info(`Volume: ${sensor.volume} L`)

Contributing

Please read the Code of Conduct.

Technical details

Water flow sensor models

• POW110D3B
• YF-S201 - datasheet
• YF-S201C

Platforms

Developed on Rapsberry Pi model B

Dependencies

• onoff ^1.1.2