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ST25DV16K - RFID tag with EEPROM 16kb non-volatile I2C memory STEMMA QT/Qwiic - Adafruit 4701
RFID tag with 16 kb EEPROM memory from Adafruit with STEMMA QT / Qwiic connector. It works with mobile phones and thanks to the I2C interface it can be reprogrammed to your own needs. The chip conforms to ISO / IEC 15693 (13.56 MHz) standards and is read by telephones and tablets. When connected to the controller, dynamic data recording begins.
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Product description: ST25DV16K - RFID tag with 16kb I2C EEPROM memory STEMMA QT/Qwiic - Adafruit 4701.
RFIDtag with16 kb EEPROMmemory from Adafruit withSTEMMA QT / Qwiicconnector. It works with mobile phones and thanks to the I2C interfaceit canbe reprogrammed to your own needs. The chip conforms toISO / IEC 15693(13.56 MHz) standards and is read by telephones and tablets. When connected to the controller, dynamic data recording begins.
Botland is an official distributor of Adafruit electronics. These dependable American solutions cover sensors, controllers, Arduino shields, educational systems, smart building and a wide range of accessories. The Botland range holds original Adafruit products only.
Product compatible with Metro modules The manufacturer has prepared auser guide anda library with asample program forMetro module users. |
Unlikestandard RFID tags, the presentedproduct supports ISO15693 and reads ST25DV. Thanks to that it is possible to read information using AppleandAndroidphones. According to technical documentation, the module can be used as acommunication system "I2C - RFID". Thanks to it, you can wirelessly send and receive data from your mobile phone. For this purpose, you need to write your own application (using the producttechnical documentation).
RFID tag with EEPROM memory.
Connections of the module using STEMMA QT / QWIIC connectors
The module has a built-inSTEMMA QT / QWIICconnector to connect the board. The black colour indicates the GND ground of the circuit, red indicates the VIN power supply (5 V), and blue and yellow indicate the I2C connections respectively: SDA - data line, SCL - clock line.
| Pin | Description |
|---|---|
| GND | The weight of the system. |
| VIN | 5 V power supply. |
| SDA | I2C bus data line. |
| SCL | I2C bus clock line. |
For more information on how to connect and output the module, seethe user guide. |
Technical specifications
- I2C interface:
- Serial I2C interface with 1 MHz clock frequency
- Use of multiple I2C addresses 0x2D, 0x53 (user memory) and 0x57 (system memory)
- Supply voltage: 1.8 V to 5.5 V
- Multi-byte programming (up to 256 bytes)
- Non-contact interface:
- Based on ISO / IEC 15693
- Type 5 NFC Forum Type 5 tag with NFC Forum certificate
- Support for all ISO / IEC 15693 modulations
- Fast read access up to 53 Kb/s
- Reading single and multiple blocks (also for extended commands)
- Save single and multiple blocks (up to 4) (same for extended commands)
- Internal tuning capacity: 28.5 pF
- Memory:
- 16 kb EEPROM memory
- I2C interface with byte access
- RF interface with access to 4 byte blocks
- Write time
- With I2C: typically 5 ms/byte
- With RF: typically 5 ms/block
- Quick transfer mode:
- Fast data transfer between I2C and RF interfaces
- 256-byte dedicated half-duplex buffer
- Power supply: analogue output to supply external components
- Data protection:
- User memory: 1 to 4 configurable areas, read and/or write protected with three 64-bit RF passwords and one 64-bit I2C password
- System configuration: protected against 64-bit RF and 64-bit I2C passwords
- Dimensions: 31.7 x 25.3 x 4.6 mm
Useful links
| Name | Value |
|---|---|
| Interface | I2C |
| Sensor - type | RFID |
| UC - EEPROM | 16 kB |
| Width | 2.5 cm |
| Height | 0.3 cm |
| Depth | 3 cm |
| Weight | 0.004 kg |
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30 days to return, without giving a reason
If the product does not meet your expectations, you have 30 days from receiving the parcel to withdraw from the contract. The product only has to be complete. The right of return belongs to consumers (a purchase unrelated to business activity).
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If the product turns out to be faulty, you can make a claim under the guarantee or the statutory warranty. We handle claims without delay, at the latest within 14 working days of receiving the report together with the goods.
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Instructions and documents
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Product information
This product is a component intended for further assembly or prototyping. It is not a finished product within the meaning of the product safety regulations.
