Matrix Orbital DD-DB1 LCD/VFD Dev Board - Manual (Page 17)

Dallas One-Wire
Mating Cables Temperature Probe
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.
Baud Rate 19200
I 2 C Address 0x50
Backlight 255
Contrast 128
Table 12: Manual Override Settings
15
Illustration 15: Dallas One-Wire Connector
Illustration 16: Manual Override