Activity 4

Astro Pi: Inputs, Outputs, and Processing

Use the story below to identify the inputs, outputs, and processing components of the Astro Pi. Add your ideas, then click “Check Ideas” to get feedback and hints.

Astro Pi is a small Raspberry Pi computer developed by the Raspberry Pi Foundation (RPF), in collaboration with the UK Space Agency and the European Space Agency (ESA).

Astro Pi computers come with a set of sensors and gadgets that have the ability to “sense” and make many kinds of measurements, from temperature to movement, and to output information using a special display — the 8x8 LED matrix. The Astro Pis are also equipped with a joystick and buttons.

There are two special Astro Pi that have been qualified for spaceflight and are onboard the International Space Station (ISS). They are identical, except for the type of camera they contain.

The European Astro Pi Challenge offers young people the amazing opportunity to conduct scientific investigations in space by writing computer programs that run on the Astro Pi computers aboard the International Space Station.

Astronaut holding an Astro Pi on the ISS

What component(s) does the Astro Pi use to obtain input from its environment?

Hint: Think about sensors, cameras, and physical controls.

What component(s) does the Astro Pi use to output information?

Hint: The story mentions a special display.

How can you be sure from the text that the Astro Pi contains a processor and memory?

Hint: Look for evidence that it is a computer running programs.