The steps below outline how to configure the ANT+ to BLE Passthrough using your Viiiiiva HRM with the 4iiii Android app.
Connect the Viiiiiva HRM to the 4iiii App. The Viiiiiva HRM must be worn and sending data in order to connect to the app. Tap Add device and then select the Viiiiiva from the list of devices.
After tapping connect, advance to Viiiiva Settings by tapping the small right arrow in the grey box.
Tap "ANT+ Pairing Settings" at the bottom of the screen to advance to the ANT+ Devices screen. Tap Scan at the bottom of the page to start the ANT+ sensor scan. NOTE the ANT+ sensor you are trying to connect must be on and transmitting data in order to be recognized by the app.
After the scan is complete, open the appropriate dropdown for the sensor type and select the desired sensor from the list. The ANT+ sensor is usually identified by the ANT+ ID of the sensor.
After you have selected the desired sensor, tap 'Save' at the bottom of the screen to complete the pairing.
After the ANT+ sensors have been saved, you can exit the ANT+ Devices menu.
Then to connect the Viiiiva, and ANT+ sensors to the desired BLE only device or app, you will be connecting 'Viiiiiva' as both HR and the desired sensor (ie. connect 'Viiiiiva' as bike power). You must first delete the Viiiiiva from the 4iiii App before connecting it to another BLE device. Viiiiiva can only be connected to one device or app at a time via BLE.
Some training applications require the Viiiiiva to be named the default name 'Viiiiiva'. If you have previously renamed the Viiiiiva to a custom name, please rename it back to 'Viiiiiva' prior to connecting to your desired training app.