GLK240128-25-WB-VPT Matrix Orbital, GLK240128-25-WB-VPT Datasheet - Page 30

• Manufacturer Part Number: GLK240128-25-WB-VPT
• Description: LCD GRAPHIC DISPL 240X128 BLU WH
• Manufacturer: Matrix Orbital
• Series: GLK240128-25r

Specifications of GLK240128-25-WB-VPT

• Display Type: LCD - Color
• Display Mode: Transmissive
• Viewing Area: 114.00mm L x 64.00mm W
• Backlight: LED - Blue
• Dot Pixels: 240 x 128
• Interface: I²C, RS232, TTL
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Dot Size: -
• Dot Pitch: -
• Other names: GLK240128-25 -WB-VPT; GLK240128-25 -WB-VPT

4.3 Draw a Bitmap
Directly
Draw a bitmap directly to the graphic display without saving to memory.
X Position
Y Position
Width
Height
Data
Bitmap File Creation
In addition to fonts, Matrix Orbital graphic displays can also hold a number of customizable bitmaps to
provide further stylistic product integration. Like font files, bitmaps files are most easily uploaded to a
display using MOGD#. However, the critical data component of the bitmap upload command is detailed
below for reference.
The bitmap data block is similar to that of a font. However, as a bitmap is only a single glyph, only a
simple two byte header is required. First, one byte representing the bitmap width is sent, then one byte
for the height. Each bitmap is merely encoded in binary fashion using a series of ones and zeroes. Again
a grid can be created using the width and height specified in the upload command, populated in the
manner above, and converted into byte values. A smiley face example is shown below to indicate the
ultimate affect of the Matrix Orbital graphic stylization ability.
1 byte, leftmost coordinate of bitmap
1 byte, topmost coordinate of bitmap
1 byte, width of bitmap
1 byte, height of bitmap
bitmap dependent, see Bitmap File Creation example
Table 24: Smiley Face Bitmap
Dec
Hex
ASCII
0
0 0 0 0 0
1
0
1
0 0 0
1 1 1
0
254 100
FE 64
1
■ d
0
1
0
X Position Y Position Width Height Data
X Position Y Position Width Height Data
X Position Y Position Width Height Data
Bitmap Data
Table 26: Example Bitmap File
Header
0
0 0
1 1 1
1
0
1
Table 25:Smiley Face Data
80 34 224
1
0 0 0
0 0 0 0 0
5 4
0 0 0 0
1
0
50
22
E0 224
80
34
24