Bluetooth prerequisits

Created: 2014-11-26T14:34:01Z
Updated: 2021-06-01T09:33:42Z

In case Bluetooth connection causes head ache, perhaps below brief may be enlightening


  • C-Pen 3.5 only support Bluetooth pairing with one host (PC, MAC or Android device) at the time. If you like to use it via Bluetooth on two or more different PC's you need to re-pair every time you switch to another PC.
  • USB connection is higher priority than Bluetooth. This means that if the C-Pen 3.5 is paired and being used via Bluetooth with Host#1 and you connect the C-Pen 3.5 via USB to Host#2, then next scan will appear on Host#2. If you disconnect the USB from Host#2, then next scan is sent via Bluetooth to Host#1. 
  • If the C-Pen 3.5 is Bluetooth paired with Host#1 and you connect it via USB also to Host#1 (e.g. for charging purposes) then your scanned data will be sent via USB instead of Bluetooth (but you will likely not notice any difference). If you disconnect the USB, the Bluetooth connection is automatically re-established with Host#1