Description

Rain Detector Sensor Module  allows  you to measure moisture via analog output pins.  It provides a digital output when a threshold of moisture exceeds. Rain Detector is based on the LM393 op amp.It includes the electronics module and a printed circuit board that “collects” the rain drops.  As rain drops are collected on the circuit board, they create paths of parallel resistance that are measured via the op amp.The lower the resistance (or the more water), the lower the voltage output.   Conversely, the less water, the greater the output voltage on the analog pin.  A completely dry board for example will cause the module to output five volts.

FEATURES:

  1. VCC: +5 Volts Power Source
  2. GND: Ground or negative power source
  3. DO: Digital Output.  Goes low when moisture exceeds set threshold.
  4. A0: Analog Output – Zero to five volts.  The lower the voltage, the greater the moisture.
  5. Power LED: Indicates applying of power.
  6. Output LED: Illuminates when moisture has exceeded threshold set by sensitivity adjustment.
  7. Sensitivity Adjustment: Clockwise is more sensitive. Counterclockwise is less sensitive.

RELATED DOCUMENTS:

  1. Rain Sensor Module For Arduino Tutorial

Package includes:

1 x Rain Detector Sensor Module

allows you measure moisture via analog output pins and it provides a digital output when a threshold of moisture is exceeded.The module is based on the LM393 op amp.It includes the electronics module and a printed circuit board that “collects” the rain drops.  As rain drops are collected on the circuit board, they create paths of parallel resistance that are measured via the op amp.The lower the resistance (or the more water), the lower the voltage output.   Conversely, the less water, the greater the output voltage on the analog pin.  A completely dry board for example will cause the module to output five volts.

Additional information

Weight 0.1 kg

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