ESP32 + RFID RC522 Tutorial with LCD Screen (BEGINNER-FRIENDLY)

[@uploadideaswithitamar]

Check out other related videos or check my playlist out on ESP32 Projects. ❤ You can use LCD I2C library which is compatible with ESP32

[@hi-12-y3d]

Love from india.. Go head my dear brother.. We want more like this❤

[@uploadideaswithitamar]

Thanks

[@muhammadaniqnukmanamran1256]

sorry for ask question, can you help me? Compilation error: MFRC522.h: No such file or directory. what is this im beginner of this . thankyou so much

[@uploadideaswithitamar]

I think you need to install the MFRC522 library. If it's still not working after installation, check for an update.

[@becerrinlexx7138]

Hi, I have a question. What library did you use? I want to do something similar, but it throws a warning and tells me that my library is not compatible.

[@uploadideaswithitamar]

It throws a warning for me too. Look at the description and try installing the same library. I’ve been using this library on ESP32 for all the projects that I make with ESP32. I’ll see if they have a compatible library.

[@uploadideaswithitamar]

Good news! I found a compatible library for ESP32 without warning, just search for LCD I2C and install it

[@DilZedth]

thanks 🍹

[@uploadideaswithitamar]

Thank you

[@tharii314]

played in 1.5x and I figured out that the narrator is just fluent in GPIO and nothing else.

[@uploadideaswithitamar]

Sorry 😞 what do you need sir ?

[@adiktofer]

Hi, I'm usign ARDUINO IDE 2, my module is ESP32 DEV MODULE, but it doesn't compile and show me these error:
In member function 'MFRC522::StatusCode MFRC522Extended::TCL_Transceive(TagInfo*, byte*, byte, byte*, byte*)':
c:\Users\fernando\Documents\Arduino\libraries\MFRC522\src\MFRC522Extended.cpp:824:34: error: ordered comparison of pointer with integer zero ('byte*' {aka 'unsigned char*'} and 'int')
824 | if (backData && (backLen > 0)) {
| ~~~~~~~~^~~
c:\Users\fernando\Documents\Arduino\libraries\MFRC522\src\MFRC522Extended.cpp:847:42: error: ordered comparison of pointer with integer zero ('byte*' {aka 'unsigned char*'} and 'int')
847 | if (backData && (backLen > 0)) {
| ~~~~~~~~^~~
exit status 1
Compilation error: exit status 1
EDIT: I solved this error reading arduino forums.
that issue can be fixed ading the symbol *
if (backData && (backLen > 0)) {
now rewrite the code into this
if (backData && (*backLen > 0)) {
I hope this colud help anybody who need it.

[@uploadideaswithitamar]

Did you use my code ?.

[@adiktofer]

@@uploadideaswithitamar yes I downloaded from your link.
That Issue was reported in the arduino forums when you work with ESP32.
But I fixed it.

[@GabrielDiniz-n9c]

@@adiktofer How you fixed it? I'm looking for the same problem right now.

[@adiktofer]

@@GabrielDiniz-n9c hi, it’s a library problem. Basically the argument Of One Of the functions inside the library, has a wrong declaration work pointers. Ley me check today please, Im a lil busy now.

[@luqmanh9620]

@@adiktofer hi can you show how you solve this problems