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WIZnet's BLE to TCP Gateway

Mason Lee

Introduce

WIZnet would like to introduce a BLE to TCP solution which enables bluetooth devices to access cloud services such as Google, IBM, and Amazon without a smartphone. WIZnet created a low power IoT Gateway using W5500, WizFi310, and nRF52832. image description

With this gateway, the various data of BLE node can be received as BLE and converted into a desired internet protocol such as TCP, UDP, and MQTT; and then, transmit data to various cloud servers. Data transmitted from the node can be checked by a smartphone or PC. Conversely, if one inputs data on a smartphone or PC, it can be transmitted to node via cloud server.

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We implemented to transmit BLE data to Thingspeak which is Cloud Server. The node confirms the heart rate data on Thingspeak DashBoard using heart rate service, a BLE standard profile.

Example step

  1. H/W Setting
     -> Connect the micro USB to PC and connect the Ethernet cable to the router as shown below.
         Also connect the J_LINK or nRF5DK debug out for writing.
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  2. Sign up for Thingspeak and create a channel
     -> Sign up for Thingspeak and create a channel by connecting to https://thingspeak.com/
     -> Channels -> My Channels -> New Channel -> Fill the Name -> Save Channel image description image description

  3. API Key application
     -> Copy Write API Key from API Keys image description

     -> Open project from ...\BLE_to_TCP_HRS_Thingspeak\examples\ble_central\ble_app_hrs_c\pca10040\s132\arm5_no_packs and write the copied Key value to #define WRITE_API_KEY of main.c) image description

  4. Build & Writing

  5. Confirm Thingspeak dashboard image description



In order to download the F/W, please refer to the following link. https://github.com/hooni1020/BLE_to_TCP_HRS_Thingspeak/


More information can be found at the link below. http://wizwiki.net/wiki/doku.php?id=oshw_using_wiznet:bletoethernet