30058 Parallax Inc, 30058 Datasheet - Page 32

• 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

6.4 Loading Custom Characters
6.5 Save Startup Screen Custom Characters
Matrix Orbital
Description
Remembered
Syntax
Parameters
Description
Remembered
New to the LK204-25 has added five non-volatile memory banks for
custom character storage. This is intended to allow you to create your
own custom bar graphs, medium/large numbers and startup screen.
However, each memory bank may be used to store a set of any eight
custom characters; with the only provision being that memory bank zero
contains the characters that will be used in the startup screen. By default
the memory banks will be loaded as follows:
In order to save new custom characters into a memory bank, fol-
low the same process as you would for creating a custom character, see
Section 6.2 on page 26, only use 254 193 [Bank Number] before sending
the [ID] and character [Data].
Yes
This command is used to load the custom characters into the volatile
memory so that they may be used. If custom bar graph or number charac-
ters are stored in the memory banks, this command may be used instead
of initializing the bar graph / number. To use this command send the
command bytes followed by the [Bank] that contains the custom charac-
ter data that you want to retrieve.
No
Hexadecimal
Decimal
Parameter
Bank
[Bank]
0
1
2
3
4
Startup screen characters.
Medium numbers
Horizontal bars
Large numbers
0xFE 0xC0 [Bank]
254 192 [Bank]
Vertical bars
Description
LK204-25
Length
1
Description
Memory bank to save to (0-4).
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