Matrix Orbital LK204-25 Legacy - Manual (Page 16)

2.5 Dallas 1-Wire Bridge
In addition to the six general purpose outputs the LK204-25 offers an optional Dallas 1-wire bridge, to
allow for an aditional thirty two 1-wire devices to be connected to the display. Please note that the display
normally does not come with the Dallas 1-wire bridge. It will have to be ordered as a custom. Please talk to
your sales representative if you would like this option. See Section 8 on page 33.
Figure 19: Dallas 1-Wire Bridge
2.6 Manual Override
The Manual Override is provided to allow the LK204-25 to be reset to factory defaults. This can be
particularly helpful if the display module has been set to an unknown baud rate or I 2 C Slave Address and
you are no longer able to communicate with it. If you wish to return the module to its default settings you
must:
1. Power off the display module.
2. Place a Jumper on the Manual Override pins.
3. Power up the display module.
4. The display module is now set to its default values listed below in table 1 .
5. Edit and save settings.
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