KOAMTAC KDC UHF Tag Read/Write Demo User Guide

Table of Contents

KDC UHF
Tag Read/Write Demo

You can download the demo application from Google Play Store or Apple App Store and install it: KDCUHF

First, you should pair KDC with your host device through Bluetooth.
a. Send KDC to a pairing mode by scanning SPP & Pairing or MFi & Pairing barcode from the Quick Manual
b. Pair your smart device with KDC from the Bluetooth device list
c. See the reference manual for a more detailed pairing process.
Start KDCUHF you just installed then KDCUHF is trying to connect with KDC among paired KDC list.
If you want to connect to the specific KDC, please use the menu “Connect” from KDCUHF.

116 Village Blvd, Suite 305, Princeton, NJ 08540 USA
T: + 1-609-256-4700 F: +1-609-228-4373
info@koamtac.com www.koamtac.com
© 2019 KOAMTAC, Inc.
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Select “INVENTORY” and approach your UHF tags to read.
Then tap on the “Start” button or press the physical SCAN button on the KDC.
You might hear multiple fast beeps while reading depending on the number of UHF tags nearby.
You can clear the current information with the “Clear” button.

Unique Tag	The number of the unique tags which have been read.
Speed	The rate to identity tags, in pcs/s.
Total Tag	A piece of EPC No. The total amount includes the data being

repeatedly read.
Total Time| Total time it takes from the start point, in ms .

Meaning of the data in the EPC column as below:

ID	ID for identifying unique tags
COUNT	The number of reads each tag
EPC	EPC data of reading tag
PC	PC data of reading tag

Scan tags nearby and select the tag with which you want to work with.

Select “ACCESS TAG” to set up
Approach UHF tag to write and tap on “Refresh” then you’ll see the tag information on the “Tag List” field if successful.
Also, you’ll see the toast message at the bottom saying, “Getting Tag List Succeeded”.
Choose one UHF tag to do manual operation and tap on “Select”.
If successful, you’ll see the toast message at the bottom saying, “Selecting Tag Succeeded”.

Read Password and Read/Write data

The access password is required to read or write data. To get the password, select “Password” and tap the “Read” button.
– KDCUHF uses the default access password (00 00 00 00) to get the password. If the access password of the tag has been changed, the proper access password is required.
Once the password is read successfully, select the memory area to write ( Password, EPC, or USER).
And then put the start address (Start Add) and the length (Length), together with the data in hex to write (Data) and tap the “Write” button.

The API to write a data to UHF tag is:
public boolean WriteUHFTagMemory(byte[] pwd, UHFMemoryBank bank, int start, int length, byte[] data, UHFStatus status)
You can check the guide document in the SDK package: KDC SDK Guide for Android.pdf

Select UHF tag, Get access password and lock the tag.

Select the UHF tag which you want to lock through the “Select Tag” menu. If the tag is selected already, skip it.
The access password is required to proceed to lock the tag.
– It might be invalid to lock the tag with the default password. Please modify the access password first before locking
Choose memory bank and action (unlock, lock, permanent…) and tap “Lock” button on “Lock Tag” menu.

Select UHF tag, Get kill password and kill the tag.

Select UHF tag which you want to kill through the “Select Tag” menu. If the tag is selected already, skip it.
Kill password is required to proceed to kill the tag.
– It is not possible to kill tags with the default kill password. Please modify the kill password first.
Tap “Kill” button on the “Kill Tag” menu.
– Killed tags are no longer available.

Change the connected KDC UHF configurations.

Enable UHF Power
Determine whether UHF Power is on or off.
UHF Power Level
Set UHF Power Level to the specific dBm.
Enable Smart Hopping
Enable or Disable “Smart Hopping” function.
It is depended on KDC which you are using.
UHF Read Tag Mode
Select UHF Read Tag Mode.
Single – Read only one tag.
Multiple – Read tags for a specific time.
Active – Read tags during “Scan” button is pressed
UHF Reading Timeout
Set Reading Timeout for Multiple Read Tag Mode.
Enable Duplicate Check
If enabled, duplicated tag data is not sent by KDC.
UHF Read Mode
Determine whether to scan Barcode or UHF when a Scan button of KDC is pressed or a scan the command is received from the application.
UHF Data Type
Select UHF Data Type. Received data is composed with EPC and PC or EPC only.
Set UHF Region
Set UHF bandwidth (Frequency, Power, …) to fit the region.
It is depended on KDC which you are using.
Stop Active Read
**** The “Active Read” function stops after a certain period of time.
RFID beep count
Select read beep count of KDC.
Store RFID data
Determine whether read tag data is stored or not.
Charging Phone
Enable or Disable the “Charging Phone” function when using 1.0W.
UHF ID
Show the UHF module ID

Change KDC UHF configurations.

Display the connected KDC information.
– Serial Number, Firmware Version, etc.

116 Village Blvd, Suite 305, Princeton, NJ 08540 USA
T: + 1-609-256-4700 F: +1-609-228-4373
info@koamtac.com www.koamtac.com
© 2019 KOAMTAC, Inc.
Firmware_ReleaseHistory_20190530