SAMDK reader series - embedded high performance RAIN RFID reader solution for Raspberry Pi

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preliminary information
expected availability Q3 2022

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With full flexibility in mind, Identix developed SAMDK which is complete RAIN RFID solution based on Raspberry Pi.

SAMDK can be used in a variety of forms:

  1. as a development kit "carrier board" for the SAM line of RFID modules

  2. as a full-featured reader along with RPi as the main host or

  3. as a standalone reader PCB for embedded applications 

SAMDK implements a dedicated power supply which feeds simultaneously the RFID module and the RPi host. It also integrates a buzzer, an RGB LED, one high-power GPO and one GPI. The communication between SAM module and RPi host can be done via I2C, UART or high-speed SPI interfaces. 

When using SAMDK (along with RPi) as a standalone reader solution, the ESP-32-S3 MCU present in the SAM module can be disabled or used as an additional co-processor for specific functions. In this scenario the Impinj RFID reader IC is be fully controlled by the RPi host via high-speed SPI interface.

Additionally, sophisticated embedded "in-reader" applications can be easily  developed to run on the RPi computer using numerous development and integration tools available in the market.

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SAMDK AT A GLANCE

SAMDK is available in three different versions, depending on your needs:

Reading performance and RX sensitivity 

   

    SAMDK-700 +1000 tags/s with -86dBm (max) sensitivity

or

    SAMDK-500 +700 tags/s with -82dBm (max) sensitivity

or

    SAMDK-300 +700 tags/s with -75dBm (max) sensitivity

Except for the RFID reading performance and reading sensitivity, all remaining features and resources are equal among all models.

  • Gen2V2 RAIN RFID reader

  • Four RF RFID antenna ports

  • Integrated power supply which allows simultaneous feeding of SAM RFID module and the RPi host

  • One high luminosity RGB LED and internal buzzer for signaling

  • One high-power GPIO (+12VDC)

  • One opto-isolated GPI 

  • Internal RTC with supercap for data/time retention on RPi

  • Wi-Fi and BLE connectivity via ESP-32-S3 embedded MCU in SAM module

  • Embedded ESP-32-S3 MCU inside SAM module can be disabled by software 

  • Allow direct access to Impinj reader IC via high speed SPI interface

Technical Details

  • RAIN RFID reader board with four RF antenna ports (TNC female RP)

  • Worldwide RAIN RFID regulatory domain support including USA (FCC) and Europe (ETSI)

  • Impinj Gen2V2 chipset (E710, E510 oe E710) with DRM (Dense Reader Mode) and Carrier Cancellation

  • Reading performance (FCC) and RX sensitivity

    • SAMDK-700 +1000 tags/s -86dBm

    • SAMDK-500 +700 tags/s -82dBm

    • SAMDK-300 +300 tags/s -75dBm

  • Transmit power: from +0dBm to +30dBm, configurable in increments of 0.5dBm. OBS: maximum power is limited on SAMDK due to heat dissipation

  • Two high luminance programmable RGB LEDs for signaling

  • Integrated 110dB buzzer

  • One opto-isolated GPI(s)

  • One high power GPO(s) with output voltage configurable via software

  • Integrated 110dB programmable buzzer for signaling

  • Operating temperature: -20 to +50°C. 5% to 95% non-condensing humidity

  • Weight: 180g (SAMDK PCB and case)

  • Certifications: FCC, CE, Anatel