Hi,
I want to build an Arduino prototype that uses Parallax RFID reader and a Sharp proximity sensor.
I have an Arduino file that works well with the RFID reader alone and reads properly the tags.
But as soon as I plug the proximity sensor, whatever pin (digital, analog), with or without declaring its pin in the Arduino file, the Arduino file doesn't read the tags any longer. I don't understand what is happening.
I'm using pins 8,9,10 with a SoftSerial for the RFID reader.
The RFID reader works fine on its own.
The proximity sensor works fine on its own.
When I combine, the proximity sensor works but not the RFID reader anymore.
Any ideas? I can't find a way to debug with Serial.println to understand if plugging the sensor sends any bytes that could mess up with the SoftSerial??
Please help.
Thanks in advance.