Sjoerd de Jong

I also had this problem. I first had a project where I used 3 RFID readers and it worked fine. Later I had to rebuild my project, with 3 RFID...

Maybe the 12V isn't clean DC ? Like it isn't producing a constant 12V, but rather jumps back and forth around 12V. This could cause problems. I run MRFC522 RFID...

This code should work if your RFID chips are working fine. ``` /** ----------------------------------------------------------------------------------------- MFRC522 Arduino Arduino Arduino Arduino Arduino Reader/PCD Uno/101 Mega Nano v3 Leonardo/Micro Pro Micro Signal Pin...

> Has anyone ever tried using multiple MRFC522 RFID readers bought from china (I guess they are clones)? They work perfectly when using one only, but it looks like there...

Since there's only one reader on at the same time, all chips could also use the same SS pin to save some pins. Don't know if that would work with...

The Arduino digital pins can provide 20mAh, the same as the chips take. So yeah the supply is directly from the Arduino pin in my case. What code do you...

(Using Processing for Android, similair to Java) It only works 1 time for me if I load the SoundFile in setup. It works exactly 14 times if I load the...

Also, it doesn't matter if you use different files. There's a maximum of 14 playbacks. If you have 2 files, it doesn't go to 28.

code is something like: music.play(); if(mousePressed) music.stop();' And repeating that( of course only executing play() and stop() once, only when state changes)

If I load the resource again, it is limited to 14 plays. If I don't load the resource again, it is limited to 1 play. So that solution doesn't work