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Fabian Enterprises Ltd MALTA

RAINDROP SENSOR MODULE

Product Code: HR0101

Price: €3.54 (Incl Vat)


Product Description:


  • PCB Board Dimension:  3.2cm x 1.4cm.
  • Supply Voltage:  3.3V to 5V.
  • Two outputs are available, one digital (0 and 1) and one analog with an output voltage proportional to the amount of humidity on the sensor.
  • The comparator output is free of noise with a drive capability of more than 15 mA
  • The sensor board uses a high quality FR - 04 double material with a surface area of 5.5 x 4.0cm. The tracks are nickel plated to minimize oxidization and maintain good electrical conductivity.
  • Sensitivity can be adjusted via potentiometer.
  • Both boards have mounting holes to facilitate installation.
  • Wide voltage LM393 comparator.

Operation

  • The 'Power' indicator will light as soon as power (5V DC)  is connected to the board.
  • With the sensor board dry, the DO output will be high and the 'Output' light indicator will be 'OFF'.
  • With the sensor board wet (few droplets) the DO output will be low and the 'Output' light indicator will be 'ON'.
  • Removing the water from the sensor will return DO and 'Output' light indicator to the original state.. 
  • AO analog output can be connected to a microcontroller AD port to measure the amount of humidity (water droplets) on the sensor.
  • DO TTL digital outputs can also be connected to a microcontroller to detect the presence of water on the sensor.

Connection

  • VCC:   positive power supply (3 to 5V)
  • GND:  negative power supply
  • DO:    TTL switching signal output
  • AO:    Analog signal output



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