Project Logs

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• Rain Detection

  Extreme Electronics • 03/31/2017 at 22:27 • 0 comments

  On checking the Raspberry pi I noticed that the processor had become wet. A sure sign that it was raining.

• Wind Speed and direction

  Extreme Electronics • 03/31/2017 at 22:23 • 0 comments

  The wind had increased by the time of the third measurement. It was obvious that the RPI was angled on its string about 45 degrees.

  From this displacement from hanging directly down the direction of the wind can easily be obtained using the following table

  Direction Pi pointing	Direction the wind is coming from
  North	South
  East	West
  West	East
  South	North

  By interpolating these directions a more accurate bearing may be deduced.

  As the wind intensity changed, the angle that the raspberry pi hung also changed. By plotting and measuring the wind speed against this angle the Raspberry Pi's sensitivity to wind speed can be calibrated.

• 2nd Measurements - Light and temperature

  Extreme Electronics • 03/31/2017 at 22:08 • 0 comments

  This time I took a torch...

  PI processor glows brighter in torch light than it did in the dark, so its is responding to ambient light by reflecting some back.

  On touching the processor I found it to be quite cold. This accurately relays the temperature currently in the garden,

• First Measurement

  Extreme Electronics • 03/31/2017 at 21:00 • 0 comments

  First measurement at Midnight..

  Couldn't find the PI in the garden. It was very dark....

  Pi must have been indicating the ambient light level as I couldn't see it.

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