Matrix Orbital VK204-25 Legacy - Manual (Page 16)

2.7 Dallas 1-Wire Bridge
In addition to the six general purpose outputs the LK204-25-USB 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 the 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 31.
Figure 16: Dallas 1-Wire Bridge
NOTE This component is optional and must be custom ordered
2.8 Protocol Select Jumpers
The Protocol Select Jumpers, pictured below in figure 17 , provide the means necessary to toggle the
display module between USB power and external power. As a default, the jumpers are set to USB mode
with solder jumps on the USB jumpers. In order to place the display module in external power mode you
must first remove the rightmost solder jump from the USB jumpers. The display cannot be used in RS232,
TTL, or I2C mode.
Matrix Orbital VK204-25-USB 12