1,335 questions
-1
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0
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24
views
I need help reading an RFID device [closed]
I need help with reading from an RFID reader device using Python code. I have the manual, but I am unable to write the Python code correctly.
User manual link
https://d.rfidtagworld.com/Reader/UHF-...
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-2
votes
0
answers
17
views
Insert ID card to start the car/motorcycle [closed]
There are a company that provides gps service and other management systems for vehicles on companies.
One system is that a card reader installed on the car, and each time you need to sweep your card ...
0
votes
0
answers
18
views
Printing RFID with zebra zd500r in a web project
I have a react project and I want to write rfid with zebra zd500r. I connect my printer via USB. I tried two ways to print, 1st way I tried printing using zebra's browserprint sdk. My function in the ...
- 13
1
vote
0
answers
11
views
rfid card reading is OK but not finished
I have an USB RFID reader (EF4100 125kHz) connected to Raspberry Pi 4 Model B. The RFID reader is act like a keyboard and it read the first 10 digit. When I debugging the code with Thonny. At the &...
- 33
0
votes
0
answers
41
views
Flutter NFC pass data to RFID Reader
I am developing an app in Flutter that is using NFC to read RFID Cards ( ISO 14443 ) and stores the identifier.
Then i need to communicate with an RFID Reader using NFC in order to send this ...
0
votes
0
answers
35
views
How do I manually backfeed a ZPL printer?
I have printed an RFID tag on my Zebra ZT411 printer, and I want to manually backfeed it so I can read it.
What ZPL command(s) will do that? I have been looking and I cannot find a simple "...
0
votes
1
answer
48
views
When using two sensors at the same time in an embedded system, I want to prevent performance loss
Currently, I am using the mpu6050 and uhf rfid module simultaneously on the lolin d32 pro (esp32) development board.
MPU6050 has a sampling rate of 100hz. I hope RFID also has a sampling rate of at ...
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0
votes
0
answers
19
views
System.EntryPointNotFoundException: 'Unable to find an entry point named 'Inventory_G2' in DLL 'UHFReader288.dll'.'
I keep getting this error when running my project code in C#. I am using SEUIC RFID UF3-B using TCP protocol. When running my code, I always get an error like this:
System.EntryPointNotFoundException: ...
- 1
0
votes
1
answer
31
views
Impinj: How to write to reserved memory (set Unkillable mode) on Impinj M781 tag using RFID reader?
I am working with the Impinj M781 RFID tag and need to enable the "Unkillable Mode" by setting the Unkillable bit (UK bit) in the reserved memory. The datasheet specifies that this bit is at ...
- 3
0
votes
0
answers
102
views
How to Understand Access Conditions in Mifare Classic 1k
I am working with Mifare Classic 1K, and so far I have successfully inserted/updated data in each block using key A with default access byte FF0780.
I am trying to understand the documentation, but I ...
0
votes
0
answers
19
views
Apple Wallet Interference During NFC RFID Tag Writing with NFCISO14443ReaderSession [duplicate]
I am developing an application that involves writing data to RFID tags using NFC (ISO/IEC 14443A/B, Mifare, and FeliCa standards) for an electric vehicle charging station. However, I am consistently ...
- 767
0
votes
1
answer
69
views
Why does my ISO 15693-compliant tag fail to write its AFI?
I'm attempting to change the Application Family Identifier of an RFID tag from 0x07 to 0xC2 and back again using NFC on an Android phone. I've read over the standards, as well as supporting ...
- 35
0
votes
1
answer
156
views
How do I print to an RFID label on a Zebra ZT411 printer?
I have been searching for hours... I found Zebra's RFID guide here: https://www.zebra.com/content/dam/support-dam/en/documentation/unrestricted/guide/software/rfid3-pg-en.pdf Not that it's very ...
0
votes
1
answer
126
views
PWA that can read RFID in passports
I'm building a PWA (HTML, JS, PHP) for bouncers, and my customer needs to scan an ID-card or Passport, to verify the identity of the holder. I need to extract the image, date of birth and the name ...
- 170
-1
votes
1
answer
123
views
MIFARE Classic 1K How to locate the Value Block
Could someone help me identify the value blocks of a MIFARE Classic 1K card? I understand that the first 4 bytes contain the value in hexadecimal format, but I cannot identify which ones they are.
I ...
0
votes
1
answer
79
views
How read NFC card with external Reader for android phone
Facing a problem with the reader R20XC. It is connected with mobile and red light is glowing, indicate the reader is on, but the card is not reading.
Solution to read NFC card with R20XC.Also Suggest ...
0
votes
2
answers
31
views
android parcelable cast crash release version
I am working on a flutter project that integrate RFID android pistol device to the application.
Using pigeon to communicate to native android api.
While debuging android studio at RFID device I ca ...
- 1,186
1
vote
0
answers
60
views
ESP8266_NONOS_SDK vs Arduino Framework - Interrupt Differences?
Just for the record, I am a C# developer and tend to focus more on api's and backends, firmware development / C / C++ is EXTRERMELY new to me!
I have been asked to port our existing ESP8266_NONOS_SDK ...
0
votes
0
answers
32
views
NFC Tag detected in android shows false
Good Day to everyone.
One problem regarding the above question
What can I do to detect tag without 'false'?
All other function of the application seems to work just fine
'Log.d("YourTag", &...
- 23
0
votes
0
answers
60
views
Set (or avoid) frequency range using sllurp llrp on RFID reader - Speedway R220
I am new to sllurp, as well as RFID readers. I am trying to find out if it is possible to limit to a specific frequency range with a Speedway R220 reader. I have some devices that the readers are ...
- 708
0
votes
0
answers
57
views
Issue with integrating GS1 API to Android application
I have a barcode scanner application in Android Kotlin but how can I integrate GS1 API into it so that when scanning any barcode then it will show the details about the barcode item from GS1 server. ...
- 13
0
votes
0
answers
30
views
Nordic Sampo S2 RFID Scanner
I have a RFID scanner Nordic Sampo S2.
I have been trying to get some diagnostic data out of it using C++ but the function always ends up returning 1 which means error:
ret = NurApiDiagGetReport(hApi, ...
- 77
0
votes
0
answers
52
views
I need to dockerize Symbol.RFID3.Host but I am getting error about: rfidapi32pc
I have a .net application, this is from my dockerfile:
# Copy the dependencies from the project directory to the Docker image
COPY ["RMAA.RFIDService/lib/Symbol.RFID3.Host.dll", "/app/...
- 265
0
votes
0
answers
159
views
The RFID Reader and Rfid Tags intrgration with React Native
Currently, I am working on integration with Rfid reader, and Rfid Tag with our devices in React Native.
My projects description is:
Connect RFID Reader to our device.
When a RFID Tag comes in range ...
0
votes
1
answer
65
views
HITAG2 tag with HTRC110
I am new to HITAG token types, and I am learning how to read them using the HTRC110 ABIC, I have a PCF7936 transponder token, from what I know, The HITAG protocol is reader speak first, so to be able ...
- 11
1
vote
0
answers
71
views
How can I resolve the error 'TagInfo' was not declared in this scope?
I am working on an RFID project using the MFRC522 and Ethernet libraries. My code is encountering a compilation error, and I am not sure how to resolve it. Here is the specific error message:
...
0
votes
0
answers
42
views
How to connect an Impinj RFID scanner through Java
I need to connect an Impinj RFID scanner through my Java code. I have tried many examples, but all of them use a hardcoded MAC address. Currently, I am trying to connect to the scanner using my Java ...
0
votes
1
answer
74
views
Unknown APDU command starting with 1x
the APDU commands I am sniffing do not match with any APDU I've ever seen while the anti-collision part seems to be showing the right commands.
I've been trying to sniff a tag-reader communication for ...
1
vote
0
answers
230
views
add card number to zkteco user with python and pyzk
I recently purchased a ZKTeco Uface800 Plus device. I've developed a small Python application to manage it, allowing me to connect, add users, and enroll fingerprints using the PyZK library. When the ...
- 21
0
votes
0
answers
29
views
RFID 522 reader with RPi4 only reads sometimes
I have an RFID 522 reader connected with Raspberry Pi 4 and it only works sometimes. I followed the schematic from a tutorial and used the corresponding code. The reader works perfectly fine, detecing ...
- 1
0
votes
0
answers
120
views
Changing UID of a Chinese magic card with RC522 and Raspberry pi Pico w
Recently I have bought some Chinese magic cards which are supposedly block 0 writable. I am able to write all of the blocks except block 0. I have done some research and figured out that you need to ...
- 1
0
votes
1
answer
95
views
RFID WL-134A Hex Decoding Arduino
I've got an animal tag reader connected to an Arduino module, and have successfully got data reading in thanks to user red_car but I'm having issues with the tag ids being incorrect, it seems to pass ...
- 197
0
votes
0
answers
526
views
RFID Reader gives only last 8 digits in decimal instead all 10 in HEX
I have two readers, an expesive reference one and the cheap ones that are being put into our devices.
The expensive one reads the RFID UIDs at 10HEX digits (40 bits) and the results are as I expect ...
1
vote
0
answers
76
views
How to Maintain Serial Communication Without Needing to Replug USB Cable in Python?
I'm working on a Python application that communicates with an RFID reader via a serial connection using PySerial. The application needs to continuously read data from the RFID reader. However, I'm ...
0
votes
0
answers
90
views
Could you guide me on how to read tags with the Impinj M730 chip using the Zebra Android SDK?
We have developed an Android application using the Zebra RFID Reader SDK(https://www.zebra.com/us/en/support-downloads/software/developer-tools/rfid-sdk-for-android.html) to read RFID tags with the ...
- 35
0
votes
0
answers
38
views
spi5 of my STM32MP157F-K2 CAN'T read data from the RC522 CARD
i was trying to connect the rfid card to spi5 of the stm32MP157 since im a totally beginner in the cube ide i had a problem to understand the reasons. so i m gonna share with u the clock configuration ...
0
votes
0
answers
207
views
Get AID from Debit/Credit Card using NFC
I just want to get AID from scanned debit/credit card, many apps are available on Google play store that easily gets the info on scan but i am unable to get the same. The purpose of getting the AID ...
0
votes
0
answers
124
views
error when creating an RFID reader Honeywell IH45
I am currently developing an Android application that allows connecting to and reading RFID tags.
At the moment, the connection is successful, but I'm encountering an issue with creating the reader by ...
- 1
0
votes
1
answer
331
views
Interfacing RFID with STM32
I am trying to interface an YHY502CTG RFID reader module with an STM32H7A3ZITQ using STM32CubeIDE. But I am not able to set the interaction between the host and the module. Could someone please help ...
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1
vote
1
answer
125
views
The operation is not allowed on non-connected sockets. System.Net.Sockets
string DeviceTCPIP = "168.34.15.249";
string BackData;
string TextMessage;
int DevicePort = 5600;
void ReadCard()
{
this.threadListen = new Thread((ThreadStart)(() =>
{
...
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0
votes
0
answers
87
views
Initialization of an EM4425 RFID Chip
I'm new here and hope someone can help me out.
I have some questions due to the initialization process of an EM4425 chip. There are different versions of the chip. V10 is preset by EM and the ...
- 1
0
votes
0
answers
16
views
LinuxMint 21.3 HID read into LibreCalc - Multiple readers and Identification of them
With multiple rfid readers all the same vid pid and no id available, is it possible to add a suffix/prefix to the tag read into LibreCalc. Currently all tag reads go into the same column in LibreCalc....
0
votes
0
answers
46
views
How Can I Disabled my Keyboard only not the TextFormField in flutter
I want to Disable the Keyboard Because I am getting input from RFID Device. But I dont want to Disabled TextFormField. So Is there anyway to that work ??
Basically the TextFormField getting value from ...
1
vote
0
answers
302
views
Zebra RFID SDK: Neither Inventory nor getReadTags/getReadTagEx API reads tag data (e.g. memorybank, opcodes are null)
I am attempting to use the Zebra RFID SDK version 2.0.2.124 to read RFID tags with a MC3300xR handheld reader, running the R18 firmware, and am encountering problems that I am unable to resolve and ...
- 565
0
votes
0
answers
242
views
Zebra RFID Integration Error: com.zebra.rfid.api3.OperationFailureException
Zebra RFID device after getting disconnected, I can not reconnect unless I charge Zebra device again and then use it. I'm getting this error:
D/RFIDAPI3Error( 3867): connected RFD850019240520100016
E/...
- 141
1
vote
0
answers
256
views
How to Configure Flutter app with Zebra Device MC3300R
I'm trying to configure flutter app (Android) with Zebra Device MC3300R for RFID tag Scan, I have already configured RFD8500, which is working fine Below is the code. I'm able to run the flutter ...
- 141
-1
votes
1
answer
302
views
How to re-write an nfc tag (rfid/microchip) which is READ-only
how to rewrite an nfc tag (microchip). when is scanned whith the NFC Tools app their characteristcs are:
Tag type: ISO 14443-4
Technologies available: TypeA, IsoDep
Serial number: XXXXXXXXXX
Size: 15 ...
- 1
1
vote
1
answer
679
views
Conversion from MIFARE 14 byte UID to unknown 5 byte number
I have this Mifare 14 byte UID: "04502E22D45380" than i need to have converted to a 5 byte hex: "63AE03D0AA".
I have tried all kinds of conversions on the web and suggestions and ...
- 73
0
votes
0
answers
177
views
Python Script to Perform an Event While RFID Tag is In Contact with RFID Reader
I am attempting to write a python script on my Raspberry Pi 4 that turns an LED on with an RFID tag and this LED remains on while the RFID tag is in proximity of the reader. When I hold the card to ...
- 1
0
votes
0
answers
56
views
GEN2 RFID Can the User Memory Bank be read-protected
I'm looking for confirmation that it is NOT possible to read-protect the EPC, TID and User Memory banks on GEN2 RFID tags( they can only be write-protected). Only the Reserved Memory Bank, where the ...
