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Arduino hygrometer module

$6.56

Arduino hygrometer (humidity sensor)

   1  When soil is dry the module outputs a high level. Can be used to develop a maintenance free garden project.

   2 Adjustable sensitivity ( shown in blue digital potentiometer adjustment )

   4 Operating Voltage 3.3V-5V

   5 Module Dual Output mode , a simple digital output , analog output more accurate.

   6 Bolt hole for easy installation

   7 Small PCB board size : 3cm * 1.6cm

   8 Power indicator ( red ) and the digital switch output indicator ( green )

   9 LM393 comparator chip

   VCC= external 3.3V-5V

   GND= GND External

   DO= small board digital output interfaces ( 0 and 1 )

   AO= small board analog output interface

FREE shipping from China warehouse 2-3 weeks to the US
Europe and rest of the world 3-4 weeks.


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