Skip to content

Raspberry Pi decoder now available

by on June 15, 2020

The FUNcube Raspberry Pi Telemetry Decoder.

The original FUNcube telemetry decoder and Dashboard was designed to run on Windows devices and we did publish the telemetry format in accordance with the Amateur Satellite Service traditions and requirements. We had planned to opensource the Telemetry Decoder and provide an implementation on Linux, but several new missions after the original FUNcube-1 delayed our plans somewhat.

Late 2019, we had the opportunity to develop a low power/low impact ground station, based on Docker containers, for use at the Neumayer III Antarctic base at DP0GVN. This led us to evolve the code such that it would run on a Raspberry Pi. 

The Linux implementation is suitable for use on Raspberry Pi versions from 2B+ to 4 and with a FUNcube dongle (Pro or Pro+). The software will tune a dongle to search for and track all three FUNcube compatible spacecraft currently operational. The Telemetry Decoder is configured with five active decoders operating concurrently so it can deal with situations where more than one of the spacecraft are overhead at the same time.

 The decoder and warehouse uploader run as a Docker container for convenience shell scripts have been provided to launch the container in one of two modes:

The Pi decoder receiving telemetry from JY1Sat in Interactive mode

“Interactive Mode” is when the Telemetry Decoder operates in the foreground , when FUNcube compatible telemetry is received, the corresponding hex data is displayed on the terminal screen. 

“Background Mode” allows the telemetry decoder to run as a Docker image in the background where it operates much like any other background service on Linux. This mode allows for the automatic restarting of the telemetry decoder after a shutdown or reboot of the Raspberry Pi, therefore making it suitable for a remote deployment situation. 

*Both modes, when connected to the internet, will upload the received data to the FUNcube Data Warehouse and the totals displayed on the Ranking Page in the normal manner.

*Uploading to the warehouse requires registration with the FUNcube Data warehouse.

All the code for the telemetry decoder, and the scripts to build the Docker images, are now published online at the FUNcube-Dev GitHub account – https://github.com/funcube-dev under a GPL Open Source License.

Alternatively, it possible to buy a pre-formatted microSD card for the Pi from the AMSAT-UK shop here https://shop.amsat-uk.org/

Full instructions can be downloaded here

From → News

Leave a Comment

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

%d bloggers like this: