DD-DB1-AL202C-GW Matrix Orbital, DD-DB1-AL202C-GW Datasheet - Page 17

• Manufacturer Part Number: DD-DB1-AL202C-GW
• Description: DEV BD 20X2 LCD GRY TXT WHT BL
• Manufacturer: Matrix Orbital
• Series: Dev Devilr

Specifications of DD-DB1-AL202C-GW

• Main Purpose: Displays, LCD Display
• Embedded: Yes, ASIC
• Utilized Ic / Part: AL202C
• Primary Attributes: 20 x 2 Display, Gray Text White Background
• Secondary Attributes: GUI, mini USB
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 635-1038

Dallas One-Wire
The Dallas One-Wire header affords the ability to add a variety of devices to the DevDevil for purposes ranging from
temperature sensing to external memory. Multiple devices can be connected to this bus and accessed using the DevDevil.
Only non-parasitic devices, those drawing power from the dedicated pin rather than the data line, have been tested,
however, the data line has been pulled high through the nearby resistor to facilitate parasitic operation. A simple
temperature monitoring application has been provided using the Matrix Orbital probe.
Manual Override
A Manual Override feature is available on the DevDevil to override all settings to their factory defaults. This override can
be extremely useful if the device becomes unresponsive or behaves in an undesirable fashion. To override the unit to the
values below, see the Manual Override entry in the Troubleshooting section below. Please note that the settings will be
temporary and will revert when power is cycled once more, so it is recommended that desired settings are saved.
Mating Cables
Temperature Probe
Illustration 15: Dallas One-Wire Connector
Table 12: Manual Override Settings
Illustration 16: Manual Override
I
2
Baud Rate
C Address
Backlight
Contrast
15
19200
0x50
255
128