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

Comments

[grzegorz.sternik]

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.

[jundiprima]

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

[grzegorz.sternik]

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

[jundiprima]

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

[the new tomorow]

I greatly appreciate how detailed this how-to is

[grzegorz.sternik]

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?

[lafhunting]

What did you make the schematic with?