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===== Setting up the Veinasa Visibility Sensor =====

Manual: [[|Veinasa Visibility Sensor Manual]]

=== Parts ===

The Vaisala temperature and humidity probe has a few key components when it comes to setting up the instrument.
  *Main Body
{{:atmos:citation:instruments:setup_veinasa_visibility_sensor:screenshot_2026-07-14_154844.png?200|}}
  *Wires
{{:atmos:citation:instruments:setup_veinasa_visibility_sensor:screenshot_2026-07-23_172203.png?200|}}
{{:atmos:citation:instruments:setup_veinasa_visibility_sensor:screenshot_2026-07-23_172222.png?200|}}
{{:atmos:citation:instruments:setup_veinasa_visibility_sensor:screenshot_2026-07-23_172239.png?200|}}
    * Green - T/R-
    * Yellow - T/R+
    * Red - Power (positive)
    * Black - Grounding power (negative)

=== Setting up the Sensor ===

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
{{:atmos:citation:instruments:setup_vaisala_temperature_and_humidity_probe:screenshot_2025-11-24_203842.png?100|}}
  * USB to RS422/485 converter
  * Extra wire

  - Connect the DC Power Jack to power
    - Connect the red wire to the positive connection
    - connect the black wire to the negative connection
  - Wire the probe into the Converter
      - Connect the yellow wire to T/R+
      - Connect the green wire to T/R-
      - Connect the extra wire to GND and the negative connection on the DC power jack, as shown above.
  - If you have properly set up the ADPAA, you can now run the python program that coincides with your instrument and observe the data.