Internet of Things Stack Exchange
Internet of Things Stack Exchange

Questions tagged [rfid]

For questions related to use of RFID (Radio Frequency IDentification) technology in IoT devices. For questions about the electronics aspect, consider asking at Electrical Engineering Stack Exchange.

20 questions
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Wireless communication technologies for indoor location-tracking

I need to develop a solution for determining whether an object/tag exists within a defined perimeter. The perimeter would be located indoors so GPS isn't an option. It would be an approx 10 metres x 10 metres rectangle. The 'tag' needs to fit in a…
tpag26
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7
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1 answer

IoT for industrial warehouse management

Currently, I am using RFID technology for my warehouse management. My warehouse spans across 4 acres, I need to deploy so many RFID antennas and RFID readers to constantly scan the area for goods movement (active scanning). What technology is…
4 Leave Cover
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What would be the best way of authenticating users without password or username?

In our project, there are over 200 dummy users who are not very capable of using mobile technologies or computers comfortly. The project is essentially a MRP & Production Planning solution with machines connected to the server. In the original…
paroxit
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1 answer

Should I use NFC, RFID or something else?

I'm a web developer - so IoT is not my speciality at all - and I've been asked to find the cheapest and most efficient way (in this order of priority) to build a gizmo for a sport event (can't be more specific). This is how it should work : A…
AdrienXL
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6
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Options for cheap and "open" wireless thermometer/humidity sensors

I'm starting to explore IoT in my home, the first step being to connect a raspberry pi 3 B+ to a DHT22 temp/humidity, record DHT readings in a database which I then surf via a node server running on the pi. All good. I got help from e.g.:…
minisaurus
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Tracking livestock location without GPS or mobile network

Is there a way if I have a paddock 2 km by 2 km I can find the location of my livestock, essentially live tracking their movement? I've thought of possibly giving them a passive RFID tag with antennas around the perimeter but that would only work…
Angus Ryan
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Zigbee network intermittent issues

My Zigbee network connection seems to be intermittent. Suddenly all routers will lose connection, for example unable to ping any of the routers. After awhile (e.g overnight or a period of a few days) the network will be up again. Set up: 1x…
Jess
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Standalone NFC/RFID with WiFi/ethernet network connection

I spent many hours looking for a device for my iot project. So far, everything I find does not meet my expectations. I prepared two prototypes - one based on rpi zero and one based on esp32, but I need something from mass production for my customers…
Kishieel
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Pushing Processed data from RFID + Sensors to a Platform

I have some sensor nodes (Bosch XDKs) that send information to an MQTT broker and an application reads the information and stores it into InfluxDB. Simultaneously, I have RFID readers that scan some tags and send the information to a MongoDB. Based…
Shan-Desai
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How does UHF RFID remain sufficiently insensitive to product-dependent frequency shift?

A recent paper given at the ACM Workshop on Hot Topics in Networks describes a system that analyzes the variation in the EM response of UHF RFID tags on containers, due to variation in the chemical composition of the material inside the container.…
uhoh
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how can I find Java Card products?

I am searching for hardware to help me get started with passive NFC Java Card 3.2 technology. I can't find badges or tags or any kind of NFC product that advertises running Java Card 3.2. I couldn't find anything on oracle.com, but is there an…
Travis Well
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RFID Specifications and Project Recommendations

I'm very new (one day) to the IoT world. I've got a specific project I want to tackle, as a intro to IoT, but I'm also open to general advice on getting started. In summary, I want to know if my project expectations are realistic, and/or if there's…
Zduff
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How does the anti-metal uhf rfid tag work?

When the RFID tag is close to the metal, because the metal has a strong reflectance to electromagnetic waves, it will be accompanied by a weakening of the signal, the card reading distance will become closer, and serious interference will appear in…
Coco Huang
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NFC Reader PN532 works after executing nfc-poll

I use Adafruit_CircuitPython_PN532 to read the card id with a PN532 on SPI. After booting my pi my script doesn't work. However, when I execute nfc-poll in a terminal everything works fine. My python script: import board import busio from digitalio…
RumelDilDumpel
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Is it possible to connect a PN532 with CP210 to Windows x86/64?

I want to use my PN532 as input device like a keyboard on my pc with windows 10. I have a PN210 USB to UART Bridge. Is there a way to use my PN532 on a x86/64 device?
RumelDilDumpel
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