Peripherals/Sensors

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There are a large variety of sensors which can be added to the XO using the MIC_IN port. These may include;

  • Touch/Pressure - Extended information
  • Light - Use it for inverse square law experiments or for studying polarizers, reflectivity, or solar energy.
  • Temperature
  • Humidity
  • Barometer - Can be used for either weather studies or for lab experiments involving pressures close to normal atmospheric pressure
  • Soil Moisture Sensor - Some soil moisture sensors use capacitance to measure the water content of soil
  • Hall Effect (magnetic field) sensors - By using a rotating sensor tip it is possible to measure both transverse and longitudinal magnetic fields.
  • Oscilloscope - With amplification?
  • Ultrasonic - Water level monitoring, create real-time motion graphs position, velocity and acceleration.
  • Light Gate
  • Water Purity Monitor
  • Metal Detector
  • Accelerometer - This is great for studying collisions or any motion with larger accelerations.
  • Charge Sensor - the Charge Sensor can make quantitative measurements. Numerical measurements improve many electrostatics experiments such as charging by induction, charging by friction, and charging by contact.
  • CO2 or O2 Gas Sensor - These probes could measure changes in CO2 levels during plant photosynthesis and respiration. You could monitor changes in CO2 levels occurring in respiration of organisms from crickets to humans
  • Conductivity Probe
  • pH Sensor
  • Salinity Sensor - Measures the total-dissolved salt content in water.
  • Radiation Monitor

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