ماژول رطوبت سنج مقاومتی HR202

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ماژول رطوبت سنج مقاومتی HR202

ویژگی ها:

ولتاژ کاری:3.3 تا 5 ولت

جریان کاری:پایین

خروجی دیجیتال

سایز:3 در 1.6 سانتی متر

آی سی به کار رفته:LM393

تعداد پایه ها:سه عدد

SainSmart HR202 Humidity Resistance Sensor Module LM393

Description:

  • 1.can detect the humidity of the surrounding environment
  • 2.adjustable sensitivity (shown in blue digital potentiometer adjustment)
  • 3.Operating voltage 3.3V-5V
  • 4.Analog output form
  • a.voltage output
  • b.digital switching outputs (0 and 1)
  • 5.with fixed bolt hole for easy installation
  • 6.small plates PCB size: 3cm*1.6cm
  • 7.Power LED (red) and the digital switch output indicator
  • 8.using LM393 comparator chip, stable

Module interface specification (3-wire):

  • 1.VCC external 3.3V-5V
  • 2.GND External GND
  • 3.DO small plate switch digital output interfaces (0 and 1)

Module for use:

  • 1.humidity resistance module most sensitive to environmental humidity is generally used to detect ambient humidity.
  • 2.modules at ambient humidity reach the set threshold, DO port output high, when the external ambient humidity exceeds the set threshold, the module D0 output low;
  • 3.digital outputs D0 small plates can be directly connected with the microcontroller through the microcontroller to detect high and low, thereby detecting the humidity changes;
  • 4.small plates digital output DO OUR relay module can directly drive, which can be composed of a wet control switch;
  • 5.small plates analog output AO can shop AD module connected through the AD converter, you can get more accurate humidity values;

Modules Test Description:

  • By using our 51 development board and humidity resistance module test
  • Wiring:
  • Module development board connected to VCC VCC
  • Module development board GND GND with
  • Connect the VCC and GND, module power indicator lights
  • Place the module on the desktop, adjust the blue board potentiometer until the on-board switch indicator light, and then a little pullback and let light switch off and think of ways to make the environment humidity increases, the module switch indicator will light . If the ambient humidity is low, the switch indicator will back off state. This phenomenon shows that the ambient humidity can trigger module, so that the switch indicator lights.

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