•   almost 3 years ago

Problem with text in Grove-LCD RGB Backlight

I have a problem with the Grove LCD. I load this program in the genuino 101, but the text no appear. The color of the display is correct but the text "hello world" no appear. Can somebody help me?.
The program is this:

2013 Copyright (c) Seeed Technology Inc. All right reserved.

Grove - Serial LCD RGB Backlight

#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);

lcd.setRGB(colorR, colorG, colorB);

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


void loop()
// set the cursor to column 0, line 1
// (note: line 1 is the second row, since counting begins with 0):
lcd.setCursor(0, 1);
// print the number of seconds since reset:



  • Manager   •   almost 3 years ago

    Hey Ricardo!

    Sorry to hear you're having trouble and I hope one of the other developers can help you out quickly. You can also ask for help on the Seeed help group: https://groups.google.com/forum/#!forum/mkdocs

    I'm sure you saw this page already, but check this out, too: http://wiki.seeed.cc/Grove-LCD_RGB_Backlight/ Alternatively, feel free to join the competition Slack channel and you may get quicker help from your fellow participants.

    Best of luck!

  •   •   almost 3 years ago

    Thanks Stefanie,
    I have solved the problem. I have the shield at 3v. and I have changed to 5v. and now works correctly.

  • Manager   •   almost 3 years ago


  •   •   almost 3 years ago

    Use groove shield to change voltage 3.3v to 5v that works.(toggle switch)

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