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1  Using Arduino / Displays / Re: Characters dimmed on: November 17, 2012, 07:58:48 pm
Ahh... Brilliant!
Thank you very much.  I had merged 2 different sketches to the one I posted, and I knew I had a few extras in there, but I wasn't sure what wasn't needed.  Thank you so much... Might've been something super simple to you, but it's been giving me a headache for the past few hours.
2  Using Arduino / Displays / Re: Characters dimmed on: November 17, 2012, 07:24:12 pm
I see...
but I'm not reloading the same code over and over.  I'll change one thing here and there... but the only time it comes up brightly lit is if I delete everything after lcd.print("LF")
3  Using Arduino / Displays / Re: Characters dimmed on: November 17, 2012, 07:14:46 pm
Ok, I reloaded the original code, but deleted everything after lcd.print("LF"), and the LF showed up nice and bright... Then I put in the rest of the loop, and same issue, the LF comes out dim.
4  Using Arduino / Displays / Re: Characters dimmed on: November 17, 2012, 07:08:43 pm
I real quickly loaded this sketch from this post, but I deleted the void loop

http://arduino.cc/forum/index.php/topic,128635.0.html

and all the characters show nice and bright... no problems at all....
5  Using Arduino / Displays / Re: Characters dimmed on: November 17, 2012, 07:04:21 pm
No resistors are being used.  Just the board, a POT, and the LCD screen.
The thing is, no matter where I place the lcd.print("LF") on the screen, it is dim.  But the POT values are very brightly lit. 
6  Using Arduino / Displays / Characters dimmed on: November 17, 2012, 06:57:32 pm
I'm having a problem with certain characters being dim, to the point where I can hardly see them, while some characters are brightly lit up.  I'm still very new to the Arduino board and I'm trying to hook up a potentiometer and an LCD, and have the LCD show the value (0-1023) of the POT.  I was able to find the code to achieve this on this site, so that is not the problem.  The problem is, I want a description of the value next to it, but when it appears it is VERY dim compared to the POT value. 

Any help would be appreciated.

Here is my code :
Code:
#include <Wire.h>
#include <LCD.h>
#include <LiquidCrystal_I2C.h>

#define I2C_ADDR    0x3F
#define BACKLIGHT_PIN     3
#define En_pin  2
#define Rw_pin  1
#define Rs_pin  0
#define D4_pin  4
#define D5_pin  5
#define D6_pin  6
#define D7_pin  7

int n = 1;
int sensorPin = A3;
int sensorValue = 0;

LiquidCrystal_I2C lcd(I2C_ADDR,En_pin,Rw_pin,Rs_pin,D4_pin,D5_pin,D6_pin,D7_pin);

void setup()
{
lcd.begin (20,4);
lcd.setBacklightPin(BACKLIGHT_PIN,POSITIVE);
lcd.setBacklight(HIGH);
}

void loop()
{
lcd.setCursor(0,0);
lcd.print("LF");
sensorValue = analogRead(sensorPin);
delay(20);
lcd.clear();
lcd.setCursor(4,0);
lcd.print(sensorValue);
delay(50);
}
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