RFID tags provide compact, wireless identification and sensing for a wide range of projects. They support access control, asset tracking, presence sensing, and automation in robotics, education, wearables, and DIY builds. Tags come in several form factors, including adhesive labels, small buttons, glass capsules, and tokens, so they can be hidden inside enclosures or sewn into textiles. Some are read-only, others carry stored data and can be updated by a reader, and a subset offers larger memory and faster operation for demanding tasks. Compatibility with common readers and development tools helps integrate tags into embedded systems and microcontroller projects.
Consider the environment, mounting method, and how you want to interact with the tag when selecting. Durability, size, and whether you need rewritable data or a fixed identifier will guide the choice. Dynamic variants support on-the-fly data updates; basic tags provide reliable identification across many cycles. These tags bridge physical objects and software in a compact, easy-to-integrate package.
Code: SKU-010036
The SparkFun Qwiic Dynamic NFC/RFID Tag features the ST25DV64KC dynamic Near Frequency Communication (NFC) / Radio Frequency Identification (RFID) tag IC. More Details...
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Code: SKU-000413
This is a simple thumbnail-size RFID tag. These tags are great for sensing presence identification etc. and they're small so they can be easily sewn into clothing or inserted into enclosures. Each tag comes with a unique 32-bit ID code and is not reprogrammable. More Details...
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Code: SKU-000412
This is a glass cylindrical RFID tag; it's very similar to those implanted into pets for identification purposes. But really guys it's not for use inside your body. Please don't implant this thing into yourselves. Each tag comes with a unique 32-bit ID code and is not reprogrammable. More Details...
Not currently available
Code: SKU-000586
This is a basic RFID tag that functions within the MIFARE Classic® 1K guidelines. You can use these for all sorts of identification and sensing applications. The tag also has 1K of data storage which can be read and written from a compatible device. More Details...
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Code: SKU-000964
This is a basic RFID tag that functions within the MIFARE Classic® 1K guidelines. You can use these for all sorts of identification and sensing applications. The tag also has 1K of data storage which can be read and written from a compatible device. More Details...
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Code: SKU-000587
This is a basic RFID tag that functions within the MIFARE Classic® 1K guidelines. You can use these for all sorts of identification and sensing applications. The tag also has 1K of data storage which can be read and written from a compatible device. More Details...
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Code: SKU-004105
You might know RFID as the technology that Big Brother uses to track your every move. Quickly don the tinfoil hats!!Only kidding. RFID is useful for sensing and identifying tagged people and objects for access control automation and a whole range of different applications. More Details...
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Code: SKU-011277
This compact, adhesive UHF RFID tag features an advanced H9 chip, delivering faster read speeds, extended range, and larger user memory in a 30mmx16mm sticker. More Details...
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