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Trigger Circuit
The circuit below can be used to provide the engine with a signal to trigger a scan and decode session. The nTRIG signal is
from PIN 12 of the 12-pin FPC connector.
External Illumination LED Circuit
The circuit below can be used to control external illumination LED when the user wants to add external illumination to
further improve lighting. It is recommended that the time it takes to power up the ciruit be shorter than 100μs. The
OUT_LIGHT_EN signal is from PIN 8 of the 12-pin FPC connector.
25
Figure 4-6
High – LED ON
Low (default) – 1K ohm pull-down, LED OFF
Figure 4-7
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