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D027173_07 CR821X Dual Board Decoded Scan Engine Integration Guide
SW1 and SW2 allow the user to wake the unit from Sleep Mode and
trigger a barcode read, respectively. If the unit is in a sleep state when
the trigger is pushed, the Scan Engine will automatically wake up before
performing a barcode read.
The development board includes a speaker (BZ1) for audible indication as
well as two LED’s for visual indication. LED0 connects to PWRDWN and
is on when the engine is awake, off when it is asleep. LED1 connects to
GOODREADn and will flash when a barcode is successfully decoded. The
power LED indicates that the development board is powered. It will be on
if power is connected and S3 is in the ON position.
9.4 – Trigger/Wake Up Switches
9.5 – Indicators
