Waveshare Barcode Scanner Module User Manual page 33

Barcode Scanner Module User Manual
6) Scanning "Modify the Length M"
7) Scanning setting code "0", "A"
5) Scanning "Save"
6) Scanning "Only Send Center Segment"
6. RF Information
RF (Read Fail) information is the that used for indicating failed scanning in some
modes.
Send RF Information
Modify Information
The RF information can be modified by users. The max length of RF is 15 and every
character represented by two HEX values. (Appendix D)
Example: Modify the RF information as "FAIL"
1) Query characters table to get the HEX values of "FAIL" are "46", "41",
"49", "4C"
2) Make sure setting code function is enabled, if not, please enable it.
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Modify RF Information
*Without RF Information
Rev1.0 Date:180621