I bought an I2C LCD from amazon:
And I have a problem, only the backlight turns on.
The screen flickers too and I've started to ask myself if it needs to be soldered.
I tried to adjust the contrast, but still, no result.
This is my code:
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);
void setup()
{
lcd.init();
lcd.backlight();
lcd.clear();
lcd.setCursor(0, 1);
lcd.print("Hello World");
}
void loop()
{
}
Photo:
Not just needs, but absolutely must be soldered!
You must solder.
You can solder a female header on the LCD display then you can plug the backpack into this header.
when you say backpack, do you mean the i2c adapter?
Yes
oh, then i can't xD
coz i don't have a soldering machine or smth like that
can't I connect it to a breadboard?
Yes you can.
But then you need to solder a male header to the LCD display.
Yes.
how so?
say, one header or several headers?
Looks like you need a 1X16 female header to match your backpack male header.
Make sure the backpack is plugged into the new female header the right way around.
can you make me a sort of drawing because I don't understand where to plug them in
oh wait nvm i understand now
Then buy one, or give up electronics and find something else to do.
Yes.
You can get one pre-soldered. Search Amazon for "LCD i2c"
And that's exactly what i did xD
