I got two serial LCD's for a project. One works and one doesn't. The second one can't communicate, but I do notice that the backlight flickers at the same time that the TX light on my arduino does. I'm using an arduino decimilia powered via usb.
I tried sending the board the reset signal
Serial.print(0x07, BYTE);
Serial.print(18, BYTE);
According to the pdf it should reset the serial backpack to 9600 baud and such. Unfortunately I don't get any of this happening.
Also, I'm not getting any splash screen.