Case Studies

IOT Gateway

  • Qualcomm QCA4531 + QCA4024
  • WiFi, BLE 5.0, Zigbee, SIG Mesh
  • Firmware and Hardware Development
  • Enclosure Design

Project Summary:

The IOT gateway designed by Qmax is based on the Qualcomm QCA4531 + QCA 4024 chipsets. It has Wi-Fi, BLE 5.0, ZigBee and Thread. It connects to Internet using Wi-Fi or Ethernet. The gateway connects to other devices through BLE or ZigBee. This way, the Gateway acts as a bridge between the IOT devices on side and the Internet on the other.The QCA4531 has inbuilt Ethernet and PCIe features. We can add other functionality to the gateway through the PCIe slot available on board. The device is powered by an external Power Adapter.

The QCA4531 is a low-cost turnkey solution that bringshigh-performance connectivity capabilities in a userprogrammable Linux/ OpenWRT environment. OpenWRToffers a built-in package manager that allows packagesto be installed directly from a software repository, greatlysimplifying development. Benefiting from the extended rangebased on 2x2 11n, it is designed to serve as a feature-rich IoEnode and as a hub to bridge between multiple protocols andecosystems. The QCA4531 can function as an Access Pointsupporting up to 16 simultaneous devices and is alsopower-optimized to enable appliances to meetinternational standards for energy efficiency.It supports the AllJoyn connectivitysoftware framework and services,allowing devices todiscover, connectand communicatedirectly withone another.

The QCA4024 SoC is a multi-mode system-on-chip with support for Bluetooth 5 and 802.15.4-based technologies, including Zigbee and Thread. This low power SOC integrates a Cortex M4F for application processing and a Cortex M0 for network stack processing designed to enable a highly concurrent multiple radio solution. The QCA4020 SDK from Qualcomm Technologies pre-integrates support for advanced security features and mesh networking. This solution complements portions of the portfolio beyond IoT devices to address multiple industries.

Important Parts:

  • Qualcomm Wi-Fi SoC
  • Qualcomm BLE, ZigBee, Thread
  • Skyworks Wi-Fi Front End Module
  • Skyworks RF Amplifier
  • Macronix NOR Flash Memory
  • FTDI USB to Serial converter
  • Walsin SP3T RF switch
  • Macronix 64 Mb NOR Flash Memory
  • Winbond 512 MB DDR2 RAM

Salient Features:

  • Dual Band Wi-Fi, BLE 5.0, ZigBee, Thread.
  • PCIe add-on Slot
  • Ethernet
  • USB
  • DC Jack
  • LED indications

Qmax Scope of work:

  • Schematics Entry
  • PCB Layout Design
  • PCB Fabrication and Assembly
  • Firmware development
  • RF Calibration and Tuning
  • Enclosure Design
  • Board Bring-up and testing