artik-io-devices
Version:
This is part of the project [artik-io project](https://github.com/bkoper/artik-io). It contains devices that uses Artik GPIO interface.
180 lines (150 loc) • 19.2 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
var _artikIo = require("artik-io");
var _device = require("./device");
var _device2 = _interopRequireDefault(_device);
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } /*
The MIT License (MIT)
Copyright (c) 2016 Bartlomiej Koper <bkoper@gmail.com>
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the 'Software'), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
Water Flow Sensor
Model: YF-S201
*/
var calibrationFactor = 7.5;
var maxSpeed = 5;
var watchdogThreshold = 1250;
var getTimestamp = function getTimestamp() {
return new Date().getTime();
};
var WaterFlowSensor = function (_Device) {
_inherits(WaterFlowSensor, _Device);
function WaterFlowSensor(pin) {
_classCallCheck(this, WaterFlowSensor);
var _this = _possibleConstructorReturn(this, Object.getPrototypeOf(WaterFlowSensor).call(this, pin));
_this.reset();
_this.watchdogId = null;
return _this;
}
_createClass(WaterFlowSensor, [{
key: "initialize",
value: function initialize() {
this.gpio = new _artikIo.Gpio(this.pin, 10);
this.gpio.pinMode(_artikIo.Gpio.direction.INPUT);
}
}, {
key: "turnOn",
value: function turnOn() {
var _this2 = this;
this.gpio.on(_artikIo.Gpio.event.FALLING, function () {
return _this2.pulseCount++;
});
this.iv = setInterval(function () {
if (_this2.pulseCount > 0) {
_this2.lastTimestamp = getTimestamp();
!_this2.watchdogId && _this2._watchdogStart();
var flowRateRaw = _this2.pulseCount / calibrationFactor;
_this2.flowRate = Math.round(flowRateRaw);
_this2.percentSpeed = Math.round(flowRateRaw / maxSpeed * 100);
_this2.pulseCount = 0;
var flown = roundNb(_this2.flowRate / 60);
_this2.total += flown;
_this2.emit(WaterFlowSensor.event.CHANGE);
}
}, 1000);
}
}, {
key: "turnOff",
value: function turnOff() {
this.gpio.removeAllListeners(_artikIo.Gpio.event.FALLING);
this.removeAllListener(WaterFlowSensor.event.CHANGE);
clearInterval(this.watchdogId);
}
}, {
key: "getFlowRate",
value: function getFlowRate() {
return this.flowRate;
}
}, {
key: "getTotalMillilitres",
value: function getTotalMillilitres() {
return roundNb(this.total);
}
}, {
key: "getPercentSpeed",
value: function getPercentSpeed() {
return this.percentSpeed;
}
}, {
key: "getData",
value: function getData() {
return {
speed: this.flowRate,
percentSpeed: this.percentSpeed,
avg: 0,
percentAvg: 0,
max: 0,
maxPercent: 0,
total: parseFloat(this.total).toFixed(2)
};
}
}, {
key: "on",
value: function on(listener) {
this.addListener(WaterFlowSensor.event.CHANGE, listener);
}
}, {
key: "reset",
value: function reset() {
this.pulseCount = 0;
this.flowRate = 0;
this.total = 0;
this.percentSpeed = 0;
this.lastTimestamp = 0;
}
}, {
key: "_watchdogStop",
value: function _watchdogStop() {
clearInterval(this.watchdogId);
this.watchdogId = null;
this.percentSpeed = 0;
this.flowRate = 0;
this.emit(WaterFlowSensor.event.CHANGE);
}
}, {
key: "_watchdogStart",
value: function _watchdogStart() {
var _this3 = this;
this.watchdogId = setInterval(function () {
getTimestamp() - _this3.lastTimestamp > watchdogThreshold && _this3._watchdogStop();
}, watchdogThreshold);
}
}]);
return WaterFlowSensor;
}(_device2.default);
exports.default = WaterFlowSensor;
WaterFlowSensor.event = {
CHANGE: "WaterFlowSensor:change"
};
function roundNb(num) {
return Math.round(num * 100) / 100;
}