The TechUnit (TU) connects to the app via Bluetooth. After the first start-up, this usually happens automatically.

It is important to ensure that Bluetooth is also activated in the smartphone.

Loss of Bluetooth connection

The ambiotex system is characterized by a unique feature: no data can be lost.

If the connection is lost once, then the data is temporarily stored in the TechUnit in the meantime. The TU has a 24-hour ring buffer.

As soon as the connection is re-established, the so-called "Re-connect", the data between TU and app is matched and missing data is replaced.

How long does this take?

Since the disconnection usually does not take very long, the synchronization is done in a few seconds. The user does not notice anything.

Can I do activities without a smartphone?

Yes, the TechUnit then records the data up to 24 hours. As soon as the smartphone is back in range and the Bluetooth connection is up again, the data is synchronized. This can take a few minutes, depending on how long you have used the system without a smartphone. Therefore, do not turn off the TU and the app until the synchronization is complete. The running synchronization can be recognized by a dynamic icon in the upper right corner of the home screen.

VERY IMPORTANT: The synchronization can only work if an activity was started on the smartphone at the beginning. Otherwise, the system will not be able to associate the data. Therefore: if you want to do sports or anything else without smartphone, always open an activity on the smartphone first, then you can put it away. After the end of the synchronization then end the activity again.

In this way, you can, for example, record the data of a whole working day (but the synchronization can then take a while).

What can cause the Bluetooth connection to be lost?

There are many reasons for this. 

Typical is for example a too far distance from the smartphone, e.g. by leaving it somewhere.

Another classic problem, which occurs especially with cyclists, is when the smartphone is put in the back pocket or the back pocket of the jersey. The Bluetooth signal is very attenuated by water and humans are 60% water. Therefore, the signal often cannot pass through the back of the body to the TU. 

Occasionally there is also electromagnetic interference that can cause the signal to be interrupted.