Ensure all necessary USB (ANT+/BLE) receivers are connected to your computer. Not sure which receiver you need?
Please note that Bluetooth USB sticks are only necessary if you plan to use a Windows PC to run Spivi Home.
If you use a Mac PC, and you are running MacOS v1.1.14 or later, then you do not need to purchase a BLE USB stick, as macOS v1.1.14 supports native Bluetooth that includes the following devices: HeartRate monitors, Speed Cadence sensors, Power Sensors.
If you need an ANT + receiver. we recommend this one