RFID RC522 and Normal DC Motor
by ngrigoriev in Circuits > Arduino
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RFID RC522 and Normal DC Motor
![2015-02-09 13.39.28.jpg](/proxy/?url=https://content.instructables.com/FRE/WP9R/I5TI3W88/FREWP9RI5TI3W88.jpg&filename=2015-02-09 13.39.28.jpg)
My inspiration comes from a link: https://www.instructables.com/id/Arduino-RC522-RFI... On my own I have a DC motor and RFID RC522. By keeping those both in mind, I was wondering if I could do something useful as door unlocking/locking. So let's start!
For this project we need:
-Arduino board
-DC motor
-L298N chip (motor driver)
-Power Supply (5V-12V)
-Resistances (3x220OHM)
-RGB LED
-RFID RC522 (with a tag and a card)
Connect Motor Driver to Arduino Board and to DC Motor
![L298N (not 10ohm).png](/proxy/?url=https://content.instructables.com/F3R/ZGT0/I5TI3C9H/F3RZGT0I5TI3C9H.png&filename=L298N (not 10ohm).png)
Arduino pins_________Motor Driver (L298N) pins
GND____________pin#1 (Current Sensing)
D2______________pin#5 (Input1)
D3______________pin#7 (Input2)
A3______________pin#6 (Enable1)
5V______________pin#9 (Logic Supply Voltage)
GND____________pin#8 (GND)
Power Supply
+(5-12V)_________pin#4(Supply Voltage)
-________________pin#8(GND)
Connect RFID RC522 to Arduino Board
![RFID .png](/proxy/?url=https://content.instructables.com/F87/NTAQ/I5THY9L5/F87NTAQI5THY9L5.png&filename=RFID .png)
![2015-02-07 23.15.29.jpg](/proxy/?url=https://content.instructables.com/FYH/TVLT/I5THYAG0/FYHTVLTI5THYAG0.jpg&filename=2015-02-07 23.15.29.jpg)
![2015-02-07 23.19.36.jpg](/proxy/?url=https://content.instructables.com/FUK/YVX5/I5THYAG5/FUKYVX5I5THYAG5.jpg&filename=2015-02-07 23.19.36.jpg)
Arduino pins____________RFID RC522 pins
D9____________________RST
D10___________________SDA
D11___________________MOSI
D12___________________MSO
D13___________________SCK
3.3V___________________3.3V
GND__________________GND
Connect RGB LED to Arduino
![2015-02-07 23.32.01.jpg](/proxy/?url=https://content.instructables.com/FRE/NTN4/I5THYALS/FRENTN4I5THYALS.jpg&filename=2015-02-07 23.32.01.jpg)
![2015-02-07 23.32.27.jpg](/proxy/?url=https://content.instructables.com/FOB/88WQ/I5THYAMH/FOB88WQI5THYAMH.jpg&filename=2015-02-07 23.32.27.jpg)
Arduino pins________ RGB pins
A0________________ pin#1 (Red)
A1________________pin#2 (Green)
A2________________pin#3 (Blue)
Sketch and Libraries
Here is the sketch: RFIDDoorLockVersion1
library:MFRC522