node-red-contrib-freya-nodes
Version:
Custom nodes for Freya Vivarium Control System
73 lines (72 loc) • 3.06 kB
JavaScript
;
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.SensorDriver = void 0;
const dbus = require('dbus-native');
const events_1 = require("events");
class SensorDriver extends events_1.EventEmitter {
constructor() {
super();
this.bus = dbus.systemBus();
this.init();
}
init() {
return __awaiter(this, void 0, void 0, function* () {
try {
yield this.initDriverConnection();
console.log('Connected to sensor driver');
this.emit('status', { level: "ok", message: "Connected to sensor driver" });
}
catch (err) {
console.error('Error connecting to sensor driver:', err);
this.emit('status', { level: "error", message: "No connection to driver" });
setTimeout(() => { this.init(); }, 5 * 1000);
}
this.iface.on('measurement', (type, value) => {
const parsedValue = isNaN(Number(value)) ? value : Number(value);
this.emit('measurement', { [type]: parsedValue });
});
});
}
initDriverConnection() {
return __awaiter(this, void 0, void 0, function* () {
const service = this.bus.getService('io.freya.EnvironmentSensorDriver');
this.iface = yield new Promise((resolve, reject) => {
service.getInterface('/io/freya/EnvironmentSensorDriver', 'io.freya.EnvironmentSensorDriver', (err, iface) => {
if (err) {
reject(err);
}
else {
resolve(iface);
}
});
});
});
}
setSampleInterval(interval) {
return __awaiter(this, void 0, void 0, function* () {
if (!this.iface) {
throw new Error('Driver not initialized. Call init() first.');
}
return new Promise((resolve, reject) => {
this.iface.setDigitalOutput(interval, (err, result) => {
if (err) {
reject(err);
}
else {
resolve(result);
}
});
});
});
}
}
exports.SensorDriver = SensorDriver;