LCD2041 Matrix Orbital, LCD2041 Datasheet - Page 5

• Manufacturer Part Number: LCD2041
• Description: LCD Character Display Modules Yel/Grn Background Black Text
• Manufacturer: Matrix Orbital

Specifications of LCD2041

• Character Count X Line: 20 x 4
• Module Size (w X H X T): 98 mm x 60 mm x 27.5 mm
• Features: I2C LCD with software controlled contrast
• Voltage Rating: 4.75 VDC to 5.25 VDC
• Operating Temperature Range: - 20 C to + 70 C
• Backlight Type: LED Yellow-Green
• Interface: I2C

1. Refer to the diagram above and Figure 2-1 for the following steps.
2. Wire the connector to the power supply. On most connectors the RED lead will go to +5V and the
3. Connect the LCD2041 to the PC using the serial cable and adapter if required. Make sure the RS-232
4. Connect the power connector, making sure that the +5V goes to V+ as shown in Figure 2-2. Turn on the
Now you're ready to try it out.
1.4 Trying Out your LCD2041
The unit is connected to power and the PC and the backlight is on. You're ready to make sure it's working
properly. To experiment with typing text, run a PC terminal program, such as Hyperterm. Make sure it's
configured to use the correct port. Set the baud rate to 19,200.
If you type characters on the keyboard, they should now appear on the LCD2041 screen. (It is normal for
text to wrap from line 1 to line 3, then to line 2 then 4. See section 3.4.1). A few common ASCII control
characters work as follows:
Note: These command characters are not guaranteed to work on other Matrix Orbital display
modules. If you want your code to be portable, use the appropriate commands listed later in the
manual instead.
LCD2041 rev 2
Character
BLACK lead to GND. See Section 2.1.1 for details.
unit is subjected to over-voltage or reversed polarity.
cable includes the required ground lead. There must be no voltage differential between the RS-
232 ground and the power supply ground.
power: the LCD backlight should come on and you should see a blinking cursor at the top left.
BS
LF
FF
+5V power
Hex value
0x0A
0x0C
0x08
Function
Moves cursor to the beginning of the next (or previous) line.
Clears the display and puts the cursor at the top left
Moves the cursor one position to the left and clears that position.
Figure 1-1 Connections for Testing
LCD2041
5
Note: The manufacturer's warranty is void if the
RS-232
PC