No .i put + is just to let lcd continue print the variable (RED) i want my LCD to display the data from the Processing ..'which is RED,GREEN ,and BLUE...i have no idea how LCD and display 3 in same time?
port.write('R');
port.write(RED);
port.write('G');
port.write(GREEN);
port.write('B');
port.write(BLUE);
the RED is an interger value
if work perfect in
case 'R':
analogWrite(9, GetFromSerial());//arduino pin 9 for LED
break;
the intensity of the light will change according to the RED value
but i do not know why it can not work in lcd to display out the RED value
i till keep give me the random char