I already get the code of the card in the first step in scan, but in door lock servo I paste the code of the card and why it's always saying that it's "wrong card"?
Hi I have electric scooter, i am planning to make project using arudino, my plan is while accelerate the vehicle, by tracking belt rotation speed to make sound using a speaker, basically electric vehicle with acceleration sound, without touching any internal wiring, please help me with it
Use another server that can give more torque than this. Don't use this servo for this propose. And mount the servo with the lock more securely than this. And always add a backup pin code. Trust me I know.
my code appear this at the bottom C:\Users\User\Downloads\scan\scan.ino: In function 'void loop()': C:\Users\User\Downloads\scan\scan.ino:28:12: warning: return-statement with a value, in function returning 'void' [-fpermissive] return 0; ^ C:\Users\User\Downloads\scan\scan.ino:31:12: warning: return-statement with a value, in function returning 'void' [-fpermissive] return 0; ^ C:\Users\User\Downloads\scan\scan.ino:51:10: warning: return-statement with a value, in function returning 'void' [-fpermissive] return 1; can i know what the problem is?
error: 'class LiquidCrystal_I2C' has no member named 'init' lcd.init(); ^~~~ exit status 1 Compilation error: 'class LiquidCrystal_I2C' has no member named 'init' I need help with this error that appears and I have no solution
Hello there, I solved the problem, here are the different ways I tried to solve it 1: I reinstalled the MFRC522 library 2: I removed all connections and connected it again (with the same jumper wires) although this didn’t solve my problem 3: I reconnected it with a different jumper wire and this was what solved my problem, it turns out my jumper wires had rust on them so I took a razor and scratched it off and it started working Hopefully this helps
Firmware Version: 0x0 = (unknown) WARNING: Communication failure, is the MFRC522 properly connected? i try to check the library if added and same output again
Hello , I'm beingerner and I dont really know where and how to start using ardinos to build my own projects and I don't have any info or background where wnd how could i start??
Arfinoves la peor tarjeta pesima mala calidad diseño y resistivilidad NO SRVE ..SOLO PARRA LABORATORIO. O QUE NIÑOS PEQUEÑOS JUEGUEN CON ESTAS. ...LO PEOR.
my rfid card is always detected as wrong on the LCD screen, and i dont know what i got to do now. And I tried everything but nothing please answer me 😢
I am using a gear motor and bolt to move the lock , I want to reverse the connection after the scan of card so that it lock is again completed. How should I do that ?
Hello sir my self Shashank I have purchased components required for For RFID door lock system control system using Arduino but u have said that code is in description where sir please responce for this
Hi bro, I have a question 🙋♂️. I make a project and I use 2x RFID-readers PN532 on ESP32. The 1 on I2C and the 1 on SPI. my code works but the problem is that my RFID readers take turns reading, e.g. I first have to apply the tag to the first one and it scans then I can scan it to the second one so immediately it doesn't work! could you please give me a code for this or could you please make a video about it as soon as possible?! Already thank you 😊
built this project last night. it works but the lcd screen is only showing the W and P letters on the lcd screen not all the text of "Welcome Put your card" any ideas for a fix?
my lcd is not showing anything sir pls help ! . i got short of 1 male to female so i connected female to female to male to male . pls help sir monday is my submission
Now it shows me 'firmware unknown' when I try to run the scan code 😢 I read the library documentation and it says that there's no explanation for this bug
hello i am trying this in my project ..can i get the source code. i have been trying the source code that you provided in the link but its different.. thank you
@@sritu_hobby 😍🥰 thank you so much sir ......got it.. had to scroll downnnnnnn to find ...... wish me luck for this hahahahah keep uploading more XDXD😍🥰
