High Quality Serial LCD****2 Shield Module V2.0 -Arduino Compatible
LCD screen is a character ***2 which is often used in the production of electronics and of course it's a simulation. It can be used to display two rows of characters, and each row is *6 characters:
However, to control such a common module is not so easy. First of all, we must occupy the corresponding Arduino pin according to its 4 lines work mode or 8 lines work mode, but this actually occupied more digital I/O pin, especially 8 lines connection mode. Second, although there are corresponding libraries to support, but you should pass the debug, and run on Arduino successfully, at the same time it can meet a lot of problems. Finally, the code to control LCD need take up corresponding memory space, which is difficult for *6K memory space of Arduino.
In order to solve these problems, we have designed this type of serial LCD module based on ***2 characters. To compared with the method before, the advantage is obvious:
1, Adopt serial port to control, to cut down the number of cables linking to the hardware;
2, Do not occupy the memory space of Arduino;
3, To minimize the debugging time through successfully verifying the code.
It can be easily connected with Arduino through Arduino Emartee Sensor Shield V5.0and special sensor cable.
In order to demonstrate its function, you can connected a module on Arduino Emartee Sensor Shield V5.0, when push the , Arduino will send corresponding controlling order through serial LCD. When this module is powered, the effect shown as below:
Specification:
1, Interface: Serial Interface
2, Pin Definition: VCC, GND, RX, TX
3, Back lit (Green with white char color)
4, Supply voltage: 5V
5, Size: *7.7mm× *2.6mm
6, Contrast Adjust: Through Potentiometer
7, Backlight Adjust: Through Potentiometer
Drive Arduino Serial LCD****2 Shield V2.0 and Arduino IIC/I2C LCD****2 Shield at the same time
Test Code:
Int switchPin = 7; // set the digital interface 7 as the interface of big interface
Void setup()
{
Serial. Begin(***0); // set the baud rate as ***0
PinMode(switchPin, INPUT); // set the digital interface 7 as mode
}
Void loop() {
If (HIGH == digitalRead(switchPin)) // if the switchPin is high, then go on following command
Serial. Print("$CLEARrn"); //clear screen
Serial. Print("$GO 1 4rn"); // display address is: The line 1, the row 4
Serial. Print("$PRINT Emartee COMrn"); // display the character "Emartee COM"
Serial. Print("$GO 2 1rn"); // display address is: The line 2, the row 1
Serial. Print("$PRINT Hello World! rn"); // display the character "Hello World! "
Serial. Print("$CURSOR 1 1rn"); // CURSOR move to line 1, row 1