Open Source WiF to Bluetooth 5, Thread, Zigbee IoT Gateway

Bluetooth 5 to WiFi IoT gateways are implementation examples for achieving long Bluetooth ranges offered by BlueNor modules.

 

WiFi to Bluetooth 5 gateway

 
  • These Open source products are in market ready enclosure.  Upon completion of firmware and apps development, you can begin marketing products.
  • Our host board and enclosure implementations are examples for minimizing Bluetooth range degradation. You can reuse our schematics and Gerber files as well as placement of mechanical components if you are interested in developing your own products.

WiFi to Bluetooth 5, Thread, Zigbee IoT Gateways

A Bluetooth to WiFi Gateway (BWG) relays messages from a cloud server to any node in a Bluetooth SIG mesh, other meshes, or in a point to point application. 

WiFi to Bluetooth SIG mesh IoT gateway for cloud server

WiFi to Bluetooth SIG mesh IoT gateway for cloud server

The Simplest and the Lowest Cost IoT Gateway Platform

A BWG has 3 major components:

  • A BlueNor Nordic nRF52 Bluetooth 5 module. Thread and Zigbee supports are available.
  • An ESP8266 WiFi module
  • An USB to UART bridge
Block Diagram of Bluetooth WiFi Gateway (BWG)

Block Diagram of Bluetooth WiFi Gateway (BWG)

It can be used as a bridge to a cloud server. It can also be used as a Bluetooth 5 dongle for Windows PC.

WiFI Connection to Cloud

An ESP8266 WiFi module is used for connection to a WiFi router. Source codes are available for use with Arduino IDE to develop connection to a cloud server.

As an alternative, ready to use firmware can be preloaded into ESP8266 to set up connection to MediumOne server. MediumOne offers free or very low cost monitoring services for sensors. Embedded MediumOne codes in ESP8266 is not open sources.

Relaying Messages between Cloud and Mesh

A Nordic nRF52 module communicates with cloud server in the message layers. nRF52 development environment shall be used for code development. Source codes are available.

The 64 MHz Cortex M4F MCU in nRF52 relays messages between a cloud server and any node in the mesh network. A CryptoCell 310 co-processor is embedded in BT840 Series modules. Secured messages can be decrypted and authenticated when relayed between a cloud server and Bluetooth SIG mesh.

As a Bluetooth 5 Dongle

A BWG can be used as a Bluetooth 5 dongle by connecting to a PC USB port and setting a switch.

Common Features for all IoT Gateways

  • Size: 60x60x22mm
  • Include an AC adapter and USB cable
  • Desk or wall mountable
  • Optional magnetic mount
  • External antenna included when required.

BWG832F, Low Cost Gateway for Home or Small Mesh

BWG832F with BT832F module is a low cost Bluetooth 5 to WiFi IoT gateway for point to point or small mesh network where security is not required or limited decryption and authentication can be implemented in firmware.

Its range to a node using the same module is 280 meters, enough for home and typical office deployment.

    • Cortex M4F MCU, 64 MHz with hardware DSP instructions and floating point unit.
    • Flash/RAM: 512KB/64KB
    • Bluetooth range: 280 meters, measured.
    • $22.49 each at 1K pcs
    • Availability: March 2018

    BWG840F, Gateway for Industrial Applications

    CryptoCell 310 co-processor in BT840F module can offload decryption and authentication of messages, required in Bluetooth SIG mesh. Cortex M4F MCU can relay messages in a large mesh network efficiently. 

    For industrial applications or larger mesh network, BWG840F is required to relay messages.

    • Supports Bluetooth 5, Thread and Zigbee
    • Cortex M4F MCU, 64 MHz with hardware DSP instructions and floating point unit.
    • Flash/RAM: 1MB/256KB
    • CryptoCell 310 co-processor
    • Bluetooth range: 800 meters at 125 Kbps, estimated
    • $29.17 each at 1K pcs
    • Availability: April 2018

    BWG840E with External Antenna ANT060

    CryptoCell 310 co-processor in BT840E module can offload decryption and authentication of messages, required in Bluetooth SIG mesh. Cortex M4F MCU can relay messages in a large mesh network efficiently. 

    For industrial applications or larger mesh network, BWG840E is required to relay messages.

    • Supports Bluetooth 5, Thread and Zigbee
    • Cortex M4F MCU, 64 MHz with hardware DSP instructions and floating point unit.
    • Flash/RAM: 1MB/256KB
    • CryptoCell 310 co-processor
    • Bluetooth range: 1200 meters at 125 Kbps, estimated
    • Includes ANT060, +6dBi external antenna
    • $35.91 each at 1K pcs
    • Availability: April 2018

    BWG840X with Power Amplifier

    • Supports Bluetooth 5, Thread and Zigbee
    • 132 dB link budget at 125 Kbps

    BWG840XE with Power Amplifier and ANT060 Antenna

    • Supports Bluetooth 5, Thread and Zigbee
    • Includes ANT060, +6dBi external antenna
    • 140 dB link budget at 125 Kbps