Serial LCD Module 20x4 Amber on Black for Arduino

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Price: $26.95    

Product Feature

• 20x4 Character LCD module with serial interface
• Amber on Black (Amber backlight)
• serial (TTL), i2c and SPI interface (jumper selectable)
• Module size: 98mm x 60mm x 13.5mm
• 5V

Product Description

20x4 LCD Module Amber on Black (Amber characters, black background). This type of display is called NEGATIVE. The character color shows the color of the backlight.It has serial interface (serial TTL, i2c and SPI) for easy interface to any micro controller, all in a standard LCD module size (no more backpack or wider size needed).Contrast and backlight can be controlled using serial commands. Serial interface is selectable by setting different jumpers.For Serial interface, use pins 1 to 3 (Pin 1 = RX, Pin 2 = GND, Pin 3 = +5V).Pin 4 is not connected.For i2c interface, use pins 7 to 10 (Pin 7 = SCL, Pin 8 = SDA, Pin 9 = GND, Pin 10 = +5V).For SPI interface, use pins 5 to 10 (Pin 5 = SS, Pin 6 = SDO, Pin 7 = SCK, Pin 8 = SDI, Pin 9 = GND, Pin 10 = +5V).Product Datasheet: http://media.nkcelectronics.com/datasheet/LCM2004SD-NSA-FBW.pdfArduino Sample program:http://media.nkcelectronics.com/downloads/NKC_LCD_Serial.inoArduino 1.0 library:https://github.com/downloads/nkcelectronics/SerialLCD/SerialLCD.zip

Serial LCD Module 20x4 Amber on Black for Arduino Review

OK, I have very little experience with coding and LCDs and what not. I needed to diplay data from the Serial Monitor in Arduino and I only needed to display 4 lines. This WAS PERFECT! I had a different LCD that I've been fighting with for months with no luck. I bought this out of frustration and I was not disappointed. I only needed 3 pins to display what I wanted to. PERFECT!!!!

**ONLY COMPLAINT- it does not come with headers, just solderable holes, this to me is a let down because I shouldn't need a soldering iron to play with arduinos. These are what you'll need (or something similar):
http://www.amazon.com/Gino-Angle-Single-Header-Strip/dp/B0079SK5MO/ref=sr_1_5?s=electronics&ie=UTF8&qid=1357419628&sr=1-5&keywords=2.54+headers

There is a link to a PDF in the description. It was VERY useful when figuring out what 0xFE meant and such. If you need help setting up shoot me a message.

Easy code to get you started:
/* The initial settings of this code will not constantly update serial data, to do that
move everything from "the LCD displays the following" and down into your Void loop and it will update
so long as you have some method of sending it data */

/* NKC Electronics 16x2 Serial LCD test 16x2 Serial LCD pinout for UART serial communication

pin 1: RX // This is the square hole
pin 2: GND
pin 3: +5V

Connections:

connect pin1 to Arduino digital pin 1
connect pin2 to Arduino GND
connect pin3 to Arduino +5V

Default communication speed is 9600 */

char ESC = 0xFE;

void setup()
{
Serial.begin(9600); // Initialize LCD module
Serial.write(ESC);
Serial.write(0x41); //Turns LCD on
Serial.write(ESC);
Serial.write(0x51); //Clears Screen of erroneous data
Serial.write(ESC);
Serial.write(0x52); // Sets Contrast 1-40
Serial.write(40);
Serial.write(ESC);
Serial.write(0x53); // Set Backlight 1-8
Serial.write(8);
/* LCD Displays the following */
Serial.print(" Type what you want here "); // Set cursor line 2, column 0
Serial.write(ESC);
Serial.write(0x45);
Serial.write(0x40);
Serial.print(" Type what you want here Too ");
}

void loop() {

}

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