LK202-25-USB-FW Matrix Orbital, LK202-25-USB-FW Datasheet - Page 16

• Manufacturer Part Number: LK202-25-USB-FW
• Description: LCD 20X2 79MM X 17MM COL/WHT USB
• Manufacturer: Matrix Orbital

Specifications of LK202-25-USB-FW

• Display Mode: Transmissive
• Number Of Digits/alpha: 40
• Outline L X W X H: 116.00mm x 37.00mm x 25.73mm
• Viewing Area: 82.20mm L x 18.20mm W
• Display Format: 20 x 2
• Character Size: 5.55mm H x 3.20mm W
• Character Format: 5 x 7 Dots
• Voltage - Supply: 5VDC
• Dot Size: 0.60mm W x 0.65mm H
• Interface: I²C, RS232, TTL
• Operating Temperature: 0°C ~ 50°C
• Character Count X Line: 20 x 2
• Module Size (w X H X T): 116 mm x 37 mm x 25.73 mm
• Fluid Type: STN
• Voltage Rating: 5 V
• Operating Temperature Range: 0 C to + 50 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Display Type: -
• Backlight: -
• Other names: Q4421337

3 Troubleshooting
3.1 The display does not turn on when power is applied.
3.2 The display module is not communicating.
Matrix Orbital
• First, check the USB cable which you are using for continuity. If you don’t have an ohm meter, try
• Second, ensure that the correct drivers are properly installed. For the latest drivers, visit the Matrix Or-
• The last step will be to check the USB Cable on the LK202-25-USB. If the USB Cable has become
• First, ensure that the host system and display module are both communicating on the same baud rate.
• Finally, you may reset the display to it’s default settings using the Manual Override Jumper, see
using a different USB cable, if this does not help try using a different power supply.
bital website at http://www.matrixorbital.ca/drivers/. If you require additional support to resolve this
matter, please contact Matrix Orbital using one of the mehods described in section 14.6 on page 55.
loose, or you are unable to resolve the issue, please contact Matrix Orbital, see section 14.6 on page 55
for contact information.
The default baud rate for the display module is 19200 bps.
Section 2.3 on page 8.
Figure 15: Protocol Select Jumpers
LK202-25-USB
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