@sdetweil oh I see, I made some modification based on your suggestion

const spawn = require("child_process").spawn
var NodeHelper = require("node_helper")
var process = spawn("python", ["/home/pi/MagicMirror/modules/MMM-Attend/attendance.py"])
require('events').EventEmitter.defaultMaxListeners = 0;

module.exports = NodeHelper.create({
  
  socketNotificationReceived: function(notification, payload){ 
    
  switch(notification) {
        case "GIVE_ME_DATA":
          
          process.stderr.on("data", (data)=>{
          console.log("attend process errorr= "+data)
          })
          process.stdout.on("data", (data)=>{
            console.log("attend data = "+data)
            var result = String.fromCharCode.apply(null, new Uint16Array((data)))
            this.sendSocketNotification("HERE_IS_DATA", result)
          })
        break
    }
  },
})

is this what you mean based on your previous comment. Because I don’t really get it

@sdetweil ahhh so that seems to be the problem… I thought using

print("Welcome! \n" + staff_name(int(staff_id)))

is enough to get the output (since I could get the output from print(“No new staff”)).

Oh in addition, I also got this

MaxListenersExceededWarning

so I put this

require('events').EventEmitter.defaultMaxListeners = 0;

inside nodehelper.js (based on my google search) and it seems to run albeitly very slow, well that is something I guess.

Thanks for the help and advice though.

Hello @sdetweil , thank you for the reply.

I tried your advice where I use setInterval() in MMM-Attend.js which you could see it here:

Module.register("MMM-Attend", {
  
  start: function() {
    setInterval(notificationReceived, 1000); //perform every 1000 milliseconds.
    
  },
  
  getDom: function() {
    var e = document.createElement("div")
    e.id = "DISPLAY"
    ///console.log("getDom" + )
    return e
  }, 
  
  notificationReceived: function(notification, payload, sender) {
    this.sendSocketNotification("GIVE_ME_DATA")
    console.log("notificationRecieved")
  },
  socketNotificationReceived: function(notification, payload) {
    switch(notification) {
      case "HERE_IS_DATA":
        var e = document.getElementById("DISPLAY")
        e.innerHTML = payload
        break
    }
  },
  getStyles: function() {
    return ['MMM-Attend.css']
  },
})

however it gave me error. Is this the way to call it interval-ly? Pardon my Javascript as I really not good at it

Here are the code I used in my module just in case

MMM-Attend.js

Module.register("MMM-Attend",{
	// Default module config.
	defaults: {
		updateInterval: 30000,
		fadespeed: 4000 
		
		},
		

 getDom: function() {
    var e = document.createElement("div")
    e.id = "DISPLAY"
    //console.log (test)
    return e
  },
  
 start: function() {
    Log.info('Starting module: ' + this.name);
  },
 
  notificationReceived: function(notification, payload, sender) {
    switch(notification) {
      case "DOM_OBJECTS_CREATED":
        var timer = setInterval(()=>{
          this.sendSocketNotification("GIVE_ME_DATA")
          //var test = "kel"
        }, 1000)
        break
    }
  },
  socketNotificationReceived: function(notification, payload) {
    switch(notification) {
      case "HERE_IS_DATA":
        var e = document.getElementById("DISPLAY")
        e.innerHTML = payload // display nama
	var timer = setInterval(() =>{
	    console.log ("e", e.innerHTML)
        }, 1000) 
    }
  },
  getStyles: function() {
      return ['MMM-Attend.css']
  },
  
})

node_helper.js

/// node_helper.js
const spawn = require("child_process").spawn
var NodeHelper = require("node_helper")
var process = spawn("python", ["/home/pi/MagicMirror/modules/MMM-Attend/attendance.py"])
var interval = 1000
module.exports = NodeHelper.create({
  
  socketNotificationReceived: function(notification, payload) {
    switch(notification) {
      case "GIVE_ME_DATA":
        this.job()
        break
    }
  },
  job: function() {
    process.stdout.on("data", (data)=>{
      //var timer = setInterval(() =>{
	    console.log ("node_helper", data)
        //}, 1000) 
      var result = String.fromCharCode.apply(null, new Uint16Array((data)))
      this.sendSocketNotification("HERE_IS_DATA", result)
    })    

  }
})

Hello everyone!

I’m currently trying to create a module that can detect a new people who checks in from my finger print using python module that I have created.

So far, the module already can display in the attendance however it does not update at all which means that I have to restart the Magic mirror in order to get any new person who comes in.

The python code that I created can update any new attendance interval-ly but somehow it does not show any update on the mirror.

Here are the GitHub for the module that I’m currently work on: https://github.com/ntahlahweh/MMM-Attend

Please do assist me on this matter.