TeleDongle v0.2

This is the ground station electronics for logging telemetry from a TeleMetrum rocket altimeter. 

Plug the USB cable into a computer and the board shows up as a standard serial port.  Attach a suitable antenna to the SMA connector and you're ready to go!  Power is taken from the USB interface.

While any 70cm antenna may work, we've had good success with the Arrow 440-5 Yagi.  With one of our optional SMA to BNC adapters, you can even mount TeleDongle adjacent to the antenna feedpoint for optimal performance.  If you intend to do this, choose the 2m cable option to have adequate flexibility to point the antenna at your rocket in flight.

Removing the cover from the plastic box provides access to connectors that allow TeleDongle to be used to reprogram another TeleDongle or TeleMetrum board with a suitable programming cable.

An unpackaged version of this product for use in other applications is available in the Hobby Electronics category.

The hardware design and software are completely open source.  Please see the Altus Metrum TeleDongle web page for more information.  The user manual for TeleMetrum includes information on the use of TeleDongle, and is  available in both html and pdf formats.

TeleDongle is mostly used as a receiver.  Using it to transmit requires an amateur radio license or other authorization.