LCD Shield and Network port.. need a pin moving?

Using Arduino Project Guidance
1

Hi peeps,

I'm using an Arduino Uno with a LCD Shield which uses the following pins...

Pin Function
Analog 0 Button (select, up, right, down and left)
Digital 4 DB4
Digital 5 DB5
Digital 6 DB6
Digital 7 DB7
Digital 8 RS (Data or Signal Display Selection)
Digital 9 Enable
Digital 10 Backlit Control

This is declared in the code as follows;
// select the pins used on the LCD panel
LiquidCrystal lcd(8, 9, 4, 5, 6, 7);

I also want to use a ENC28J60 Network attachment and this uses the following pins

Wire up as following (ENC = module side):

  • ENC SO -> Arduino pin 12
  • ENC SI -> Arduino pin 11
  • ENC SCK -> Arduino pin 13
  • ENC CS -> Arduino pin 8
  • ENC VCC -> Arduino 3V3 pin
  • ENC GND -> Arduino Gnd pin

Now, everything's good apart from Pin 8. I am happy to cut pins if needed on my shield and remap / solder, just dont know which one's best to do.

Any advice would be most helpful. I am also running an RF reader so only really have the rest off the analogue pins and 1&2 free.

Thanks,

Steve

2

(careful) bending pin 8 of the upper shield (LCD) and connect it to pin 9 with a male/female cable?

no need to cut

3

Would I then declare it as..

LiquidCrystal lcd(9, 9, 4, 5, 6, 7);

?

thanks,

4

Sorry, you should connect it to a free pin (did check if pin9 was used, my mistake :blush: :slight_smile:

pin 3 seems to be free (otherwise you can use the analog Pins as digital ones nr 14..19
LiquidCrystal lcd(3, 9, 4, 5, 6, 7);

as backlight is enabled always for most sketches you can bend that pin too and connect it to +5