Rfid-rc522 not working

Other Hardware Home Automation
1

Hello!

I'm making a project of an Automatic door.

The components I'm using are: -Arduino Uno, 2 RFID-RC522, 2 LCD (16x2 with I2C communication), 1 MicroSD Card reader, 1 TinyRTC(I2C), 2 Reley.

I had issues with the RFID-RC522's. Everyting is connected and tried to make a Dumpinfo just to make sure the RFIDs are working properly, but I got the most common feedback: 0xFE and 0xFF (Firmware Version: 0xFF = (unknown) WARNING: Communication failure, is the MFRC522 properly connected? Scan PICC to see UID, SAK, type, and data blocks...).
After this message I started to search for any solutions:

  1. It said that the powersupply is not enough, just checked its fine.
  2. Wires are messed up: I reconnecte everyting about 5 times and also tried with only one of the RFIDs (and also swapped them).
  3. I should try other arduino, but there is no option for it.
    I will attach my connection:

LCD 1:
SDA: Arduino A4
SCL: Arduino A5
VCC: 5V
GND: GND

LCD 2:
SDA: Arduino A4
SCL: Arduino A5
VCC: 5V
GND: GND

RTC Modul:
SDA: Arduino A4
SCL: Arduino A5
VCC: 5V
GND: GND

RFID 1 (RC522):
SS: Arduino 10
RST: Arduino 9
MISO: Arduino 12
MOSI: Arduino 11
SCK: Arduino 13
VCC: 3.3V
GND: GND

RFID 2 (RC522):
SS: Arduino 8
RST: Arduino 7
MISO: Arduino 12
MOSI: Arduino 11
SCK: Arduino 13
VCC: 3.3V
GND: GND

keyboard 1:
rows: Arduino 3, 2, 1, 0
columns: Arduino A0, A1, A2, A3

keyboard 2:
rows: Arduino 11, 10, 9, 8
columns: Arduino 7, 6, 5, 4

reley 1:
trigger pin: Arduino 6

reley2:
trigger pin: Arduino 5

Micro SD Card modul:
CS -> D4
SCK -> D13
MOSI -> D11
MISO -> D12
VCC -> 5V
GND -> GND

I hope we can find a Solution for this and also thanks if you help me.

Best regards,
Viktor.

2

Sorry I will not burn time on word schematics, post a real annotated schematic, the language of electronics, and be sure to show all connections, power, ground and power sources. Post links to technical information on each of the hardware devices. Also post your code using code tags of course.