Grove Starter Kit for Arduino V3 lcd module won't print

Products & Technology Starter Kit
#1

Hi I’m brand new to Arduino and I just Brought a Arduino Uno and the Grove Starter Kit downloaded the library and examples successfully tried a few BUT when I tried the Grove Backlight LCD Module I can’t get it to “Print” any text the background changes color but no text :question:

I’m brand new so Have no idea whats going on anyone got an idea please …
Thanks In advance

RetroBuilder

#2

Hi,

In order to isolate your issue can you please use the following code and send a photograph of the LCD screen output.

[code]#include “rgb_lcd.h”
#include <Wire.h>

rgb_lcd lcd;

void setup()
{
lcd.begin(16, 2);

static uint8_t block[8]= { -1, -1, -1, -1, -1, -1, -1, -1 };
lcd.createChar(0, block);

lcd.setCursor(0, 0);
for (uint8_t i= 0; i < 16; ++i)
lcd.write((uint8_t)0);

lcd.setCursor(0, 1);
for (uint8_t i= 0; i < 16; ++i)
lcd.write((uint8_t)0);
}

void loop() {}

[/code]

Thanks and Regards

#3

Thanks for answering Kavi

I ran the code and pretty much nothing happens just the back ground is lit up
20151209_201417[1].jpg

#4

Ok,Could you please raise a ticket in the following link support.seeedstudio.com/ with the same photo.

Thanks and Regards

#5

Hello,

We can see the base shield switch is not correct. It should be set to 5V when using Grove RGB LCD.

Thanks and Regards

#6

I have exactly the same problem.
I use the grove starter kit for Arduino V3 connected to a UDOO NEO board.
The UDOO NEO require shield powered with 3.3V so I set the grove board power switch to 3.3V.
Backlight is ok but nothing print on the lcd (other modules from the kit are running well).
Should I try to set the switch to 5V without any risk to damage the UDOO board ? If not other idea to solve the problem ?
Many thanks.

#7

We have not tested with UDOO neo board so cant say if it would get damaged.

The grove RGB LCD requires 5V.

#8

I’ve had two rgb backlit screens that have been dead on arrival. The second was a warranty replacement for the first and was part of the starter kit so replacement meant losing the whole kit again so I didn’t test it when it arrived. Seems to be a common fault, so I’m unlikely to gamble on a third one being OK with my own money.

#9

Hello, I’m sorry to see such a problem. We have no way to help you solve the problem of damage to logistics products in the forum. You can send an email to [email protected] for help.