RFID based Smart Attendance System using Nodemcu & Firebase

In this tutorial, I have created a Smart Attendance System. In this system, Smart Attendance Admin Panel is made using Html, CSS, Bootstrap, Jquery, Javascript.
You can add users to the system in "INIT" mode. The rfid tags(or users) is read using the RC522 Rfid reader.
Admin can then monitor all the users present in the system.
The user's check-in and check-out time is also downloadable as csv file. The current user status is also monitored in realtime using Firebase Realtime database.

The timestamp of various topics in this tutorial:
1. Demo: 03:08
2. Requirements: 10:19
3. Circuit Diagram: 11:41
4. Arduino & Web Code Explanation: 16:40

[blkkobra]

Sir please make a detail video on how the RFID cards are read and write. What are the requirement for this and they should be explain in detail. What are the different types of RFID cards, what are the difference among them should be explain in details.

[vineethkm]

I have a error as i am getting invalid date in the website please help me out i have presentation tomorrow and what are the settings should we do if i have to create my own database

[shamshadahmed]

It's showing following error:-
getForamttedDate is not member of timeClient

[schuttersclubmbelgium]

Hi Sir,
i get following error: Class NTPClient has no member named 'getFormattedDate'
What went wrong or did i forget ? Thanks

[nabeelahmed]

Firebase.setInt(firebaseData, uidPath+"users/"+temp, 0) does not work. But when I input it as a whole string like "/users/temp" then it works. Anytime I use a variable and concatenate strings, it doesn't work. Why does this happen?

[vamshikmouliks]

Error 'D8' was not declared in this scope; did you mean 'SD'. please help with this error

[cjcamjcd]

Hi! Your project is similar to mine but how can i add a loading balance to user like me as admin will place a balance to any user and when the user tap their rfid for check out, the balance will deduct accordingly to set deduction balance

[getmedia]

how we can get this website? please tell me

[rocopahugot]

hello sir, i dont have any idea i follow your instructions. idunno if my rfid reader is working but the LED light is ON when i upload the code to my nodemcu and rfid reader it doesn't read my rfid tags. can you help me about this..

[XFooTBaLL]

on line 16 : FirebaseData firebasedata
is giving error what can be the reason?
in using esp32 and changed the library to " ESP32Firebase.h"
It didnt gave any error for library

[pathumrangana]

hello sir what about this error Compilation error: cannot convert 'const char [42]' to 'FirebaseConfig*' {aka 'firebase_cfg_t*'} plz help me!

[TrueMusicVibe]

This video will be more useful if you would have used hindi language coz it's natural and don't fell bad but your english doesn't seems good btw the tutorial is nice 😊

[pj]

i can get data on log, but not show on the table

[mochamadfaisalyogadewantar]

hi im getting error where i run init, it now display on web browser ?

[ganeshjana]

Sir i am doing the project(rfid based smart attendence system using firebase and nodemcu) but i face one difficulty when i scan the rfid card for first time card is detected and all the values are stored in webpage but for second time when i scan the card again then in serial monitor i show an error is generated (path not exist) sir plese give me the solution to solve it.

[gary]

Great work. Works well. Just a small issue being my esp8266's onboard blue led light is flashing non stop. Do you perhaps know how to stop it or disable it?

[Kennerdoll]

the structure of your database especially the attendance (those "MinNonVistZ0IhJZFOz" what do they mean?)

[EarthlyEphemera]

Sir, can I use ESP32 for wifi transmission?

[adityarajagrawal]

how to upload both init and firebase code in nodemcu alone?
Please answer this one I have presentation tomorrow i have to show this

[pj]

"Invalid date" on Website, please help me :)