GLK240128-25-WB-VPT Matrix Orbital, GLK240128-25-WB-VPT Datasheet - Page 37

• 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

10.3 Delete All Touch
Regions
Deletes all previously created touch regions. Recommended for use before dividing the screen into new regions.
10.4 Set Touch
Mode
Sets the method used to return touch events. Region mode will return a single value for events in defined areas.
Coordinate mode will return event, x position, and y position bytes for each press, drag, or release.
Mode
10.5 Set Region
Reporting Mode
Defines the events transmitted in region mode. Allows only events specified to return a value to the host. Key
down values are transmitted for press and drag events, key up for release, and the value 255 for out of region.
Mode
10.6 Set Dragging
Threshold
Sets the distance a press is required to travel before a drag event is reported. Precision will vary inversely to data
transmitted; care should be taken to find a suitable balance. Distance is calculated as
Threshold
10.7 Set Pressure
Threshold
Sets the pressure required to trigger a touch event.
Threshold
10.8 Run Touchpad
Calibration
Triggers an interactive calibration of the touchpad. User will be required to touch various points on the screen
during calibration. This command is recommended for use when environmental or user conditions change to
ensure correct operation.
Response
31
1 byte, touch reporting mode, 0 for region or 1 for coordinate mode. Default is coordinate.
1 byte, region reporting mode, see table below. Default reporting returns all events.
2 bytes, command byte 254, then 21 for success or 20 for failure.
1 byte, threshold value between 1 and 255. Default is 8.
2 bytes, threshold value between 1 and 65535. Default is 1000.
Dec
Hex
Dec
Hex
Dec
Hex
Dec
Hex
Dec
Hex
Dec
Hex
254 135
Event
254 138
FE 87
254 136
Bit
254 137
254 139
FE 8A
254 134
FE 88
FE 89
FE 8B
FE 86
Reserved
Mode
Mode
Threshold
Threshold
7-4
Mode
Mode
Threshold
Threshold
Table 34: Region Reporting Mode Byte
Out of Region
3
Drag
2
Release
1
Press
0
.