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Example #2

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A more advanced example using while loops and creating animated custom characters in two different ways.

You can redefine custom characters on the fly and even when they are displayed. If you have a custom character displays, you can change they way the all look by resending the information to it!

Stamp: Javelin Stamp
Communication Type: Serial
Display Used: Any Matrix Orbital display that supports serial communication such as the MOS or LK/VK/PK series

Displaying Animated Custom Characters:

We have two examples of code here, they both will do the exact same thing, just in two different ways.

EXAMPLE I

This example uses two custom characters and will display one and then the other to create motion.

public class CustomChar1
{
static Uart txUart = new Uart(Uart.dirTransmit, CPU.pin0, Uart.dontInvert, Uart.speed19200, Uart.stop1 );

public static void main()
{
txUart.sendByte(0xFE);
txUart.sendByte('X'); //clear screen

txUart.sendByte(0xFE); //command prefix
txUart.sendByte('N'); //custom character command
txUart.sendByte(0x00); //custom character value 0-7
txUart.sendByte(14); //8 bytes to create the custom character
txUart.sendByte(14);
txUart.sendByte(4);
txUart.sendByte(31);
txUart.sendByte(4);
txUart.sendByte(4);
txUart.sendByte(10);
txUart.sendByte(17);

txUart.sendByte(0xFE); //command prefix
txUart.sendByte('N'); //custom character command
txUart.sendByte(0x01); //custom character value 0-7
txUart.sendByte(14); //8 bytes to create the custom character
txUart.sendByte(14);
txUart.sendByte(21);
txUart.sendByte(14);
txUart.sendByte(4);
txUart.sendByte(4);
txUart.sendByte(10);
txUart.sendByte(10);

while (true)
{
txUart.sendByte(0xFE); //command prefix
txUart.sendByte('H'); //send cursor home
txUart.sendByte(0x00); //display custom character 0x00
CPU.delay(5000); //pause
txUart.sendByte(0xFE); //command prefix
txUart.sendByte('H'); //send cursor home
txUart.sendByte(0x01); //display custom character 0x01
CPU.delay(5000); //pause
}
}

EXAMPLE II

This example uses only one custom character, but redefines the data of it every single time.

public class CustomChar2
{
static Uart txUart = new Uart(Uart.dirTransmit, CPU.pin0, Uart.dontInvert, Uart.speed19200, Uart.stop1 );

public static void main()
{

txUart.sendByte(0xFE);
txUart.sendByte('X'); //clear screen
txUart.sendByte(0x00); //display custom character 0

while (true)
{
CustomChar2.Char1();
CPU.delay(5000);
CustomChar2.Char2();
CPU.delay(5000);
}
}

public static void Char1()
{
txUart.sendByte(0xFE); //command prefix
txUart.sendByte('N'); //custom characer command
txUart.sendByte(0x00); //custom character value 0-7
txUart.sendByte(14); //8 bytes to create the custom caharacter
txUart.sendByte(14);
txUart.sendByte(4);
txUart.sendByte(31);
txUart.sendByte(4);
txUart.sendByte(4);
txUart.sendByte(10);
txUart.sendByte(17);
}

public static void Char2()
{
txUart.sendByte(0xFE); //command prefix
txUart.sendByte('N'); //custom character command
txUart.sendByte(0x00); //custom character value 0-7
txUart.sendByte(14); //8 bytes to create the custom character
txUart.sendByte(14);
txUart.sendByte(21);
txUart.sendByte(14);
txUart.sendByte(4);
txUart.sendByte(4);
txUart.sendByte(10);
txUart.sendByte(10);
}
}

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Created by Henry
Last modified 2005-08-06 08:51 PM