30058 Parallax Inc, 30058 Datasheet - Page 18

• Manufacturer Part Number: 30058
• Description: SER LCD 4X20 W/KEYBRD INTERFACE
• Manufacturer: Parallax Inc

Specifications of 30058

• Interface: Serial
• Display Type: LCD - Monochrome
• Display Mode: Reflective
• Viewing Area: 82.20mm L x 18.20mm W
• Backlight: LED - White
• Character Count X Line: 20 x 4
• Module Size (w X H X T): 98 mm x 60 mm x 27.5 mm
• Voltage Rating: 4.75 V to 5.25 V
• Operating Temperature Range: 0 C to + 50 C
• For Use With: 27963 - SOLUTIONS CUBED: MEMKEY
• Dot Size: -
• Dot Pitch: -
• Dot Pixels: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: Q2089249

2.7 Keypad Interface Connector
keypad to be directly connected to the display module. Key presses are generated when a short is detected
between a row and a column. When a key press is generated a character, which is associated with the
particular key press, is automatically sent on the Tx communication line. If the display module is running
in I
Matrix Orbital
2
The LK204-25 provides a Keypad Interface Connector which allows for up to a five by five matrix style
C mode, the “Auto Transmit Keypress” function may be turned off, to allow the key presses to remain
NOTE The display module will revert back to the old settings once turned off, unless the
settings are saved.
Brightness
Baud Rate
I
Data Lock
RS232AutoTransmitData
2
Figure 20: Manual Override Jumper
C Slave Address
Table 2: Default Values
LK204-25
19.2 kbps
False
0x50
True
255
14