CubeSatSim is an open-source, low-cost satellite emulator sponsored by AMSAT that helps educators and makers explore space technology and radio telemetry.
CubeSatSim (CubeSat Simulator) is a fully open-source, low-cost satellite emulator sponsored by the not-for-profit Radio Amateur Satellite Corporation (AMSAT). It was created as an educational platform to demonstrate the engineering and science behind real CubeSats, offering hands-on learning for STEM programs.
The simulator runs on solar panels and batteries, transmits live UHF radio telemetry to a ground station, and utilizes a modular 3D-printed frame. Driven by a stack of custom PCBs along with a Raspberry Pi Zero 2 and Raspberry Pi Pico, CubeSatSim brings the complex mathematics of orbital mechanics, modern hardware electronics, and amateur radio communications directly into the classroom or maker space.
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The CubeSat Simulator is a fully open-source, low-cost satellite emulator sponsored by AMSAT. It runs on solar panels and batteries and transmits UHF radio telemetry, designed primarily for STEM education and amateur radio enthusiasts.
The simulator is built on a stack of custom circuit boards (STEM Payload, Battery, and Solar boards) and utilizes a Raspberry Pi Zero 2 and a Raspberry Pi Pico (or Pico W) as its main microcontrollers.
You can download the pre-built disk image or run an installation script on Raspberry Pi OS. The software releases and source code are hosted on the project's official GitHub repository.
Transmitting telemetry often utilizes amateur radio frequencies (e.g., 434.9 MHz). While anyone can receive and decode the transmission via a ground station, you should review your local amateur radio licensing regulations regarding active transmission.
Yes, the structural frame is designed to be fully 3D printable. The STL files for the four-piece frame are provided as part of the open-source project so makers can easily fabricate their own parts.