30058 Parallax Inc, 30058 Datasheet - Page 17

• 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

2.5 Dallas 1-Wire Bridge
an aditional thirty two 1-wire devices to be connected to the display. See Section 8.1 on page 35.
2.6 Manual Override
particularly helpful if the display module has been set to an unknown baud rate or I
you are no longer able to communicate with it. If you wish to return the module to its default settings you
must:
Matrix Orbital
1.
2.
3.
4.
5.
In addition to the six general purpose outputs the LK204-25 offers a Dallas 1-wire bridge, to allow for
The Manual Override is provided to allow the LK204-25 to be reset to factory defaults. This can be
Power off the display module.
Place a Jumper on the Manual Override pins.
Power up the display module.
The display module is now set to its default values listed below in
Edit and save settings.
Figure 19: Dallas 1-Wire Bridge
LK204-25
table 2
.
2
C Slave Address and
13