Atmos Wiki

The Vaisala temperature and humidity probe has a few key components when it comes to setting up the instrument.

• Sensors and Sensor Cap/Shield - The shield/cap protects the sensors from damage, while the sensors collect data on temperature and humidity.
• Shield - Protects the entire upper area of the apparatus from harsher conditions.
• Wires - At the end of the cord, there will be seven (7) exposed wires of the following colors: clear (no plastic covering), green, yellow, blue, white, red, and black.
  • Clear - Shield wire: it protects the other wires from interference from the surroundings.
  • Green - [Needs to be updated]
  • Yellow - Temperature Signal
  • Blue - Humidity Signal
  • White - Grounding Signal wire
  • Red - Power (positive)
  • Black - Grounding power (negative)

By now, you should have your Raspberry Pi computer completely set up, with a DAQ HAT. To continue, you will need:

• some sort of DC Power Jack connector,
• a small screwdriver for undoing and tightening the screws on the DAQ HAT channels,

Optionally:

• a multimeter/power sensor,
• some apparatus that can introduce humidity (e.g. a half-full gallon of water),
• and an apparatus that can introduce heat (e.g. a heat gun, or even your hand).

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