Paul_KD7HB:
First, add all the pin assignments shown in the sample program to your program. And add the lines for the library and initialize the library, all just as in the example program.In your setup, add the code from the example:
lcd.begin(16, 2);
// Print a message to the LCD.
lcd.setCursor(0,0);
lcd.print("LCD Key Shield");Then insert after ALL the lines where you Serial.println(), the following:
lcd.setCursor(0,1);
lcd.print("Press Key:");But where the line says "Press Key:", you put in the text you are sending to the serial monitor.
Try the program. You should see on the LCD, second line, exactly what you see on the PC monitor.
Tell us the results! We will worry about the switches later.
Paul
the lcd print is not the problem for me, problem is to change the values egs. temp1 change from 22 to 50 vent-pin from 150 to 135 and back without PC .