The sensors allow you to read:
orientation (yaw, pitch and roll) via an accelerometer, a gyroscope and 3D a magnetometer
pressure
humidity
temperature
Visit the Astro Pi site to discover the full project: Astro Pi project
Highlights:
LED display Matrix 8 × 8
Accelerometer, gyroscope and magnetometer
Air Pressure Sensor
temperature and humidity sensor
Joystick Teeny