Arduino Uno and RFID Access Control With Relay Module

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Introduction: Arduino Uno and RFID Access Control With Relay Module

Arduino Uno and RFID Access Control With Relay Module

Step 1: Arduino Code

Step 2: Make Your Circuit As Image

you need

1 - Arduino Uno

2 - RFID-rc522

3 - 100 ohm resistor 1/4 watt

4 - 3 led red green blue

5 - relay module one channel

and some wire

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    7 Comments

    0
    grzegorz.sternik
    grzegorz.sternik

    Question 1 year ago on Step 2

    I applied this project in gate access control.
    It works but arduino often suspends, I do not know why.
    After restart it is good for some time. Where is problem?
    I checked with two different boards RFID-rc522 and arduino - its the same effect.

    0
    jundiprima
    jundiprima

    Answer 5 months ago

    hi bro, can you solve it, because i get that error to sometime

    0
    grzegorz.sternik
    grzegorz.sternik

    Reply 5 months ago

    Can you change relay to optoisolated. It works fine for me.

    0
    jundiprima
    jundiprima

    Reply 5 months ago

    yes, i have tried that, and the problem still occurs, i dont know why
    , i use it to turn on motorcycle

    0
    the new tomorow
    the new tomorow

    7 months ago

    I greatly appreciate how detailed this how-to is

    0
    grzegorz.sternik
    grzegorz.sternik

    1 year ago

    I applied this project in gateway access control. Arduino often blocks, I do not know why.
    After restart it works for some time. Where is problem?