Special case of LoRaWAN connectivity, has a separate data transmission strategy and protocol due to very limited throughput.

GPS quick fix

WiFi scanning

RF scanning

VHF output

Battery monitoring

Charging and input monitoring

Persistent data logging.

To upgrade firmware using DFU:

• You need appropriate firmware version for specific tracker. Usually: app_update.bin. Download the file to your smartphone.

• You will need nRF Connect app. It is available via app store on your smartphone.

• Connect your tracker to the power supply. You can check that the tracker is discoverable by smartphone the Smart Parks Sensors app. Take note of the device name.

• Open nRF Connect app and scan for available Bluetooth devices.

• Connect to tracker device.

• When connected you will see DFU icon in the upper right corner. Click on it.

• You will see list of last download files. If your firmware file is not on it, locate it in your phone file system.

• Select Test and Confirm option.

• The DFU upload will begin. DO NOT cancel upload and wait until is finished and app returns you to the main screen!Select the app_update.bin file. The following pop-up window will appear.

Firmware for the Opencollar device needs to be separated into different modules. This will provide better way for testing and give better test code coverage.

Standard uBLOX GPS.

LoRaWAN and BLE connectivty both should offer the same functionality though an unified interface.

BLE profiles

• DFU profile

• Nordic Serial profile (all data communication is via this profile)

Serial communication protocol

Settings management

Shadow approach of settings management is the most straightforward method, similar as in AWS IoT core.

• Be able to send each setting entry separately