LCD RGB Backlight problem

Products & Technology Grove
#1

Hi

I setup arduino uno with Base shield v2
temp sensor works, heart rate sensor works etc

but LCD doesn’t show text
even with “hello world” example

i can change colour of display with

const int colorR = 255;
const int colorG = 0;
const int colorB = 0;

but

lcd.print("hello, world!");
doesn’t work

#2

Hi, is there a connection image of you project, thanks.

#3

I have a similar problem with with the Grove shield on an Arduino Duemilanove. Here is my setup and the sketch I’m using:

photo3.jpg

#include <Wire.h>
#include “rgb_lcd.h”

rgb_lcd lcd;

const int colorR = 255;
const int colorG = 0;
const int colorB = 0;

void setup()
{
// set up the LCD’s number of columns and rows:
lcd.begin(16, 2);

void setRGB(int colorR, int colorG, int colorB);

// Print a message to the LCD.
lcd.print("hello, world!");

delay(1000);

}

Any help would be appreciated. Could it be a faulty display?

#4

Hello,

When using with duemilanove solder the pads P1 and P2(shown in the attachment) in the grove base shield v2.

Let us know if it works.

Thanks and Regards
base v2.png