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Wi-Fi Connected Retail Scale

Overview

Description

Retail scales require reliable, high-speed wireless connectivity to ensure fast transactions and seamless inventory management. This design meets these requirements by integrating a Wi-Fi 6-enabled retail scale.

Wi-Fi 6 technology enables wireless transmission of weight data, supports multiple connected scales without performance loss, and ensures stable connections even in crowded environments. This design combines a SMARC SoM and mPCIe Wi-Fi 6 module on a carrier board.

System Benefits​:

  • Ready-to-use Wi-Fi 6 mPCIe board with all necessary components accelerates time to market.
  • 4x4 MIMO for Wi-Fi IEEE 802.11ax, compatible with 2.4GHz and 5GHz bands, ensures fast data transfer and minimizes transaction delays.
  • The mPCIe form factor supports a compact design, high-speed data transfer, and easy upgrades or maintenance.
  • Operates on a single 3.3V power supply, with additional power rails generated on the module and 5V for the SMARC module.

Comparison

Applications

  • Retail scales with Wi-Fi connectivity
  • Point of sale (PoS) terminals
  • Digital signage
  • MPU-based solutions with Wi-Fi connectivity

Block Diagram

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4:3 ratio Sheet.410 Sheet.408 Sheet.393 Sheet.396 2.4G Front End Module x2 2.4G Front End Module x2 2.4G Front End Module x2 Sheet.395 Sheet.397 Sheet.398 Sheet.166 Sheet.77 Sheet.78 0V9 0V9 2.2Amax 0V9 2.2Amax Sheet.1 Sheet.2 Sheet.3 Sheet.4 EU148 EU148 EU148 EEPROM 2K x8 EEPROM 2kx8 EEPROM2kx8 Carrier Board Carrier Board Carrier Board SMARC Module SMARC Module SMARC Module Wi-Fi 6 mPCIe Module Wi-Fi 6 mPCIe Module Wi-Fi 6 mPCIe Module Sheet.64 Sheet.65 Sheet.66 Sheet.73 Sheet.81 Sheet.82 Connector 1.156 Sheet.84 Sheet.85 Connector 1.156.86 Vin Vin Vin Sheet.89 Connector 1.156.90 VDDQ33 (3.3V) VDDQ33 (3.3V) VDDQ33 (3.3V) PCIe PCIe PCIe 3V3 3V3 3V3 Sheet.101 1V8 1V8 850mAmax 1V8850mAmax 8 8 8 8 Sheet.111 M.2 type E PCIe I/F MPU MPU MPU MPU PCIe PCIe PCIe Reset Reset Reset Buck Buck Buck mPCIe mPCIe mPCIe Sheet.71 EN EN EN RST_N RST_N RST_N VDD VDD VDD 2.4GHz 3V3 3V3 1.1Amax 3V31.1Amax Connector Arrow.173 Connector 1.156.174 Connector 1.177 Connector Arrow.179 0V9 must ramp up before 1V8 0V9 must ramp up before 1V8 0V9 must ramp up before 1V8 Connector Arrow.182 Wi-Fi Bluetooth 5 4x4 5GHZ Wi-Fi 6 PCIe Module 2.4/5GHz Wi-Fi 6 PCIe Module 2.4/5GHz Wi-Fi 6 PCIe Module 2.4/5GHz Wi-Fi 802.11ax Baseband Wi-Fi 802.11ax Baseband Wi-Fi 802.11ax Baseband PCIe 3.0 PCIe 3.0 PCIe 3.0 I2C I2C I2C Sheet.186 DC/DC Buck DC/DC Buck DC/DC Buck PowerGood PowerGood PowerGood Sheet.187 DC/DC Buck DC/DC Buck DC/DC Buck Enable Enable Enable Wi-Fi Rxn Rxn Rxn Txn Txn Txn 5G Front End Module x2 5G Front End Module x2 5G Front End Module x2 Sheet.407 Sheet.409 Rxn Rxn Rxn Txn Txn Txn Diplexer Diplexer Diplexer Antenna.420 Sheet.421 Sheet.422 Sheet.423 Sheet.424 Sheet.425 Antenna.426 Sheet.427 Sheet.428 Sheet.429 Sheet.430 Sheet.431 Antenna.432 Sheet.433 Sheet.434 Sheet.435 Sheet.436 Sheet.437 Antenna.438 Sheet.439 Sheet.440 Sheet.441 Sheet.442 Sheet.443
Exiting Interactive Block Diagram