I implemented a communication between two arduinos using RS485. Everything went fine until I connected the Liquid Crystal Display that comes with Starter Kit.
As soon as I connected the LCD, the slave start to have a erroneous behavior not being able to decode the messages sent by the master.
The messages are very simple: "S,E,1,100;"... when I start the serial monitor the first 3 messages are ok, but after that the Serial.read reads a lot of trash.
An important note, Master Arduino is always sending data to Slave without stoping.
Any ideias why this is happening? Is the LCD impacting Serial TX interrupts?